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-# Redis configuration file example.
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-#
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-# Note that in order to read the configuration file, Redis must be
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-# started with the file path as first argument:
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-#
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-# ./redis-server /path/to/redis.conf
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-
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-# Note on units: when memory size is needed, it is possible to specify
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-# it in the usual form of 1k 5GB 4M and so forth:
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-#
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-# 1k => 1000 bytes
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-# 1kb => 1024 bytes
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-# 1m => 1000000 bytes
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-# 1mb => 1024*1024 bytes
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-# 1g => 1000000000 bytes
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-# 1gb => 1024*1024*1024 bytes
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-#
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-# units are case insensitive so 1GB 1Gb 1gB are all the same.
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-
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-################################## INCLUDES ###################################
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-
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-# Include one or more other config files here. This is useful if you
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-# have a standard template that goes to all Redis servers but also need
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-# to customize a few per-server settings. Include files can include
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-# other files, so use this wisely.
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-#
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-# Notice option "include" won't be rewritten by command "CONFIG REWRITE"
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-# from admin or Redis Sentinel. Since Redis always uses the last processed
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-# line as value of a configuration directive, you'd better put includes
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-# at the beginning of this file to avoid overwriting config change at runtime.
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-#
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-# If instead you are interested in using includes to override configuration
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-# options, it is better to use include as the last line.
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-#
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-# include /path/to/local.conf
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-# include /path/to/other.conf
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-
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-################################## MODULES #####################################
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-
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-# Load modules at startup. If the server is not able to load modules
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-# it will abort. It is possible to use multiple loadmodule directives.
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-#
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-# loadmodule /path/to/my_module.so
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-# loadmodule /path/to/other_module.so
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-
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-################################## NETWORK #####################################
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-
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-# By default, if no "bind" configuration directive is specified, Redis listens
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-# for connections from all the network interfaces available on the server.
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-# It is possible to listen to just one or multiple selected interfaces using
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-# the "bind" configuration directive, followed by one or more IP addresses.
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-#
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-# Examples:
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-#
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-# bind 192.168.1.100 10.0.0.1
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-# bind 127.0.0.1 ::1
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-#
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-# ~~~ WARNING ~~~ If the computer running Redis is directly exposed to the
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-# internet, binding to all the interfaces is dangerous and will expose the
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-# instance to everybody on the internet. So by default we uncomment the
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-# following bind directive, that will force Redis to listen only into
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-# the IPv4 loopback interface address (this means Redis will be able to
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-# accept connections only from clients running into the same computer it
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-# is running).
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-#
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-# IF YOU ARE SURE YOU WANT YOUR INSTANCE TO LISTEN TO ALL THE INTERFACES
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-# JUST COMMENT THE FOLLOWING LINE.
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-# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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-# bind 127.0.0.1 ::1
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-
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-# Protected mode is a layer of security protection, in order to avoid that
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-# Redis instances left open on the internet are accessed and exploited.
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-#
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-# When protected mode is on and if:
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-#
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-# 1) The server is not binding explicitly to a set of addresses using the
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-# "bind" directive.
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-# 2) No password is configured.
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-#
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-# The server only accepts connections from clients connecting from the
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-# IPv4 and IPv6 loopback addresses 127.0.0.1 and ::1, and from Unix domain
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-# sockets.
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-#
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-# By default protected mode is enabled. You should disable it only if
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-# you are sure you want clients from other hosts to connect to Redis
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-# even if no authentication is configured, nor a specific set of interfaces
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-# are explicitly listed using the "bind" directive.
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-protected-mode no
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-
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-# Accept connections on the specified port, default is 6379 (IANA #815344).
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-# If port 0 is specified Redis will not listen on a TCP socket.
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-port 7654
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-
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-# TCP listen() backlog.
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-#
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-# In high requests-per-second environments you need an high backlog in order
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-# to avoid slow clients connections issues. Note that the Linux kernel
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-# will silently truncate it to the value of /proc/sys/net/core/somaxconn so
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-# make sure to raise both the value of somaxconn and tcp_max_syn_backlog
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-# in order to get the desired effect.
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-tcp-backlog 511
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-
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-# Unix socket.
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-#
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-# Specify the path for the Unix socket that will be used to listen for
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-# incoming connections. There is no default, so Redis will not listen
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-# on a unix socket when not specified.
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-#
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-# unixsocket /var/run/redis/redis-server.sock
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-# unixsocketperm 700
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-
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-# Close the connection after a client is idle for N seconds (0 to disable)
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-timeout 0
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-
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-# TCP keepalive.
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-#
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-# If non-zero, use SO_KEEPALIVE to send TCP ACKs to clients in absence
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-# of communication. This is useful for two reasons:
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-#
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-# 1) Detect dead peers.
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-# 2) Take the connection alive from the point of view of network
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-# equipment in the middle.
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-#
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-# On Linux, the specified value (in seconds) is the period used to send ACKs.
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-# Note that to close the connection the double of the time is needed.
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-# On other kernels the period depends on the kernel configuration.
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-#
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-# A reasonable value for this option is 300 seconds, which is the new
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-# Redis default starting with Redis 3.2.1.
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-tcp-keepalive 300
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-
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-################################# GENERAL #####################################
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-
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-# 是否为守护进程运行 docker 镜像中需要为非守护进程运行
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-daemonize no
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-
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-# If you run Redis from upstart or systemd, Redis can interact with your
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-# supervision tree. Options:
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-# supervised no - no supervision interaction
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-# supervised upstart - signal upstart by putting Redis into SIGSTOP mode
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-# supervised systemd - signal systemd by writing READY=1 to $NOTIFY_SOCKET
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-# supervised auto - detect upstart or systemd method based on
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-# UPSTART_JOB or NOTIFY_SOCKET environment variables
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-# Note: these supervision methods only signal "process is ready."
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-# They do not enable continuous liveness pings back to your supervisor.
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-supervised no
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-
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-# If a pid file is specified, Redis writes it where specified at startup
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-# and removes it at exit.
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-#
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-# When the server runs non daemonized, no pid file is created if none is
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-# specified in the configuration. When the server is daemonized, the pid file
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-# is used even if not specified, defaulting to "/var/run/redis.pid".
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-#
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-# Creating a pid file is best effort: if Redis is not able to create it
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-# nothing bad happens, the server will start and run normally.
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-pidfile /var/run/redis/redis-server.pid
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-
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-# Specify the server verbosity level.
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-# This can be one of:
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-# debug (a lot of information, useful for development/testing)
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-# verbose (many rarely useful info, but not a mess like the debug level)
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-# notice (moderately verbose, what you want in production probably)
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-# warning (only very important / critical messages are logged)
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-loglevel notice
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-
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-# Specify the log file name. Also the empty string can be used to force
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-# Redis to log on the standard output. Note that if you use standard
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-# output for logging but daemonize, logs will be sent to /dev/null
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-logfile /data/redis/logs/redis-server.log
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-
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-# To enable logging to the system logger, just set 'syslog-enabled' to yes,
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-# and optionally update the other syslog parameters to suit your needs.
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-# syslog-enabled no
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-
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-# Specify the syslog identity.
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-# syslog-ident redis
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-
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-# Specify the syslog facility. Must be USER or between LOCAL0-LOCAL7.
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-# syslog-facility local0
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-
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-# Set the number of databases. The default database is DB 0, you can select
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-# a different one on a per-connection basis using SELECT <dbid> where
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-# dbid is a number between 0 and 'databases'-1
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-databases 16
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-
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-# By default Redis shows an ASCII art logo only when started to log to the
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-# standard output and if the standard output is a TTY. Basically this means
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-# that normally a logo is displayed only in interactive sessions.
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-#
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-# However it is possible to force the pre-4.0 behavior and always show a
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-# ASCII art logo in startup logs by setting the following option to yes.
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-always-show-logo yes
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-
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-################################ SNAPSHOTTING ################################
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-#
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-# Save the DB on disk:
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-#
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-# save <seconds> <changes>
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-#
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-# Will save the DB if both the given number of seconds and the given
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-# number of write operations against the DB occurred.
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-#
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-# In the example below the behaviour will be to save:
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-# after 900 sec (15 min) if at least 1 key changed
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-# after 300 sec (5 min) if at least 10 keys changed
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-# after 60 sec if at least 10000 keys changed
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-#
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-# Note: you can disable saving completely by commenting out all "save" lines.
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-#
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-# It is also possible to remove all the previously configured save
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-# points by adding a save directive with a single empty string argument
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-# like in the following example:
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-#
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-# save ""
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-
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-save 900 1
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-save 300 10
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-save 60 10000
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-
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-# By default Redis will stop accepting writes if RDB snapshots are enabled
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-# (at least one save point) and the latest background save failed.
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-# This will make the user aware (in a hard way) that data is not persisting
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-# on disk properly, otherwise chances are that no one will notice and some
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-# disaster will happen.
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-#
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-# If the background saving process will start working again Redis will
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-# automatically allow writes again.
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-#
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-# However if you have setup your proper monitoring of the Redis server
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-# and persistence, you may want to disable this feature so that Redis will
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-# continue to work as usual even if there are problems with disk,
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-# permissions, and so forth.
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-stop-writes-on-bgsave-error yes
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-
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-# Compress string objects using LZF when dump .rdb databases?
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-# For default that's set to 'yes' as it's almost always a win.
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-# If you want to save some CPU in the saving child set it to 'no' but
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-# the dataset will likely be bigger if you have compressible values or keys.
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-rdbcompression yes
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-
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-# Since version 5 of RDB a CRC64 checksum is placed at the end of the file.
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-# This makes the format more resistant to corruption but there is a performance
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-# hit to pay (around 10%) when saving and loading RDB files, so you can disable it
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-# for maximum performances.
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-#
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-# RDB files created with checksum disabled have a checksum of zero that will
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-# tell the loading code to skip the check.
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-rdbchecksum yes
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-
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-# The filename where to dump the DB
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-dbfilename dump.rdb
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-
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-# The working directory.
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-#
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-# The DB will be written inside this directory, with the filename specified
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-# above using the 'dbfilename' configuration directive.
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-#
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-# The Append Only File will also be created inside this directory.
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-#
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-# Note that you must specify a directory here, not a file name.
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-dir /data/redis
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-
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-################################# REPLICATION #################################
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-
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-# Master-Replica replication. Use replicaof to make a Redis instance a copy of
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-# another Redis server. A few things to understand ASAP about Redis replication.
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-#
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-# +------------------+ +---------------+
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-# | Master | ---> | Replica |
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-# | (receive writes) | | (exact copy) |
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-# +------------------+ +---------------+
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-#
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-# 1) Redis replication is asynchronous, but you can configure a master to
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-# stop accepting writes if it appears to be not connected with at least
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-# a given number of replicas.
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-# 2) Redis replicas are able to perform a partial resynchronization with the
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-# master if the replication link is lost for a relatively small amount of
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-# time. You may want to configure the replication backlog size (see the next
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-# sections of this file) with a sensible value depending on your needs.
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-# 3) Replication is automatic and does not need user intervention. After a
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-# network partition replicas automatically try to reconnect to masters
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-# and resynchronize with them.
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-#
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-# replicaof <masterip> <masterport>
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-
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-# If the master is password protected (using the "requirepass" configuration
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-# directive below) it is possible to tell the replica to authenticate before
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-# starting the replication synchronization process, otherwise the master will
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-# refuse the replica request.
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-#
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-# masterauth <master-password>
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-
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-# When a replica loses its connection with the master, or when the replication
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-# is still in progress, the replica can act in two different ways:
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-#
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-# 1) if replica-serve-stale-data is set to 'yes' (the default) the replica will
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-# still reply to client requests, possibly with out of date data, or the
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-# data set may just be empty if this is the first synchronization.
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-#
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-# 2) if replica-serve-stale-data is set to 'no' the replica will reply with
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-# an error "SYNC with master in progress" to all the kind of commands
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-# but to INFO, replicaOF, AUTH, PING, SHUTDOWN, REPLCONF, ROLE, CONFIG,
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-# SUBSCRIBE, UNSUBSCRIBE, PSUBSCRIBE, PUNSUBSCRIBE, PUBLISH, PUBSUB,
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-# COMMAND, POST, HOST: and LATENCY.
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-#
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-replica-serve-stale-data yes
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-
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-# You can configure a replica instance to accept writes or not. Writing against
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-# a replica instance may be useful to store some ephemeral data (because data
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-# written on a replica will be easily deleted after resync with the master) but
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-# may also cause problems if clients are writing to it because of a
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-# misconfiguration.
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-#
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-# Since Redis 2.6 by default replicas are read-only.
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-#
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-# Note: read only replicas are not designed to be exposed to untrusted clients
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-# on the internet. It's just a protection layer against misuse of the instance.
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-# Still a read only replica exports by default all the administrative commands
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-# such as CONFIG, DEBUG, and so forth. To a limited extent you can improve
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-# security of read only replicas using 'rename-command' to shadow all the
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-# administrative / dangerous commands.
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-replica-read-only yes
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-
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-# Replication SYNC strategy: disk or socket.
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-#
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-# -------------------------------------------------------
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-# WARNING: DISKLESS REPLICATION IS EXPERIMENTAL CURRENTLY
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-# -------------------------------------------------------
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-#
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-# New replicas and reconnecting replicas that are not able to continue the replication
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-# process just receiving differences, need to do what is called a "full
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-# synchronization". An RDB file is transmitted from the master to the replicas.
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-# The transmission can happen in two different ways:
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-#
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-# 1) Disk-backed: The Redis master creates a new process that writes the RDB
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-# file on disk. Later the file is transferred by the parent
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-# process to the replicas incrementally.
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-# 2) Diskless: The Redis master creates a new process that directly writes the
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-# RDB file to replica sockets, without touching the disk at all.
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-#
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-# With disk-backed replication, while the RDB file is generated, more replicas
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-# can be queued and served with the RDB file as soon as the current child producing
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-# the RDB file finishes its work. With diskless replication instead once
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-# the transfer starts, new replicas arriving will be queued and a new transfer
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-# will start when the current one terminates.
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-#
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-# When diskless replication is used, the master waits a configurable amount of
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-# time (in seconds) before starting the transfer in the hope that multiple replicas
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-# will arrive and the transfer can be parallelized.
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-#
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-# With slow disks and fast (large bandwidth) networks, diskless replication
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-# works better.
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-repl-diskless-sync no
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-
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-# When diskless replication is enabled, it is possible to configure the delay
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-# the server waits in order to spawn the child that transfers the RDB via socket
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-# to the replicas.
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-#
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-# This is important since once the transfer starts, it is not possible to serve
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-# new replicas arriving, that will be queued for the next RDB transfer, so the server
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-# waits a delay in order to let more replicas arrive.
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-#
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-# The delay is specified in seconds, and by default is 5 seconds. To disable
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-# it entirely just set it to 0 seconds and the transfer will start ASAP.
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-repl-diskless-sync-delay 5
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-
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-# Replicas send PINGs to server in a predefined interval. It's possible to change
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-# this interval with the repl_ping_replica_period option. The default value is 10
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-# seconds.
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-#
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-# repl-ping-replica-period 10
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-
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-# The following option sets the replication timeout for:
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-#
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-# 1) Bulk transfer I/O during SYNC, from the point of view of replica.
|
|
|
-# 2) Master timeout from the point of view of replicas (data, pings).
|
|
|
-# 3) Replica timeout from the point of view of masters (REPLCONF ACK pings).
|
|
|
-#
|
|
|
-# It is important to make sure that this value is greater than the value
|
|
|
-# specified for repl-ping-replica-period otherwise a timeout will be detected
|
|
|
-# every time there is low traffic between the master and the replica.
|
|
|
-#
|
|
|
-# repl-timeout 60
|
|
|
-
|
|
|
-# Disable TCP_NODELAY on the replica socket after SYNC?
|
|
|
-#
|
|
|
-# If you select "yes" Redis will use a smaller number of TCP packets and
|
|
|
-# less bandwidth to send data to replicas. But this can add a delay for
|
|
|
-# the data to appear on the replica side, up to 40 milliseconds with
|
|
|
-# Linux kernels using a default configuration.
|
|
|
-#
|
|
|
-# If you select "no" the delay for data to appear on the replica side will
|
|
|
-# be reduced but more bandwidth will be used for replication.
|
|
|
-#
|
|
|
-# By default we optimize for low latency, but in very high traffic conditions
|
|
|
-# or when the master and replicas are many hops away, turning this to "yes" may
|
|
|
-# be a good idea.
|
|
|
-repl-disable-tcp-nodelay no
|
|
|
-
|
|
|
-# Set the replication backlog size. The backlog is a buffer that accumulates
|
|
|
-# replica data when replicas are disconnected for some time, so that when a replica
|
|
|
-# wants to reconnect again, often a full resync is not needed, but a partial
|
|
|
-# resync is enough, just passing the portion of data the replica missed while
|
|
|
-# disconnected.
|
|
|
-#
|
|
|
-# The bigger the replication backlog, the longer the time the replica can be
|
|
|
-# disconnected and later be able to perform a partial resynchronization.
|
|
|
-#
|
|
|
-# The backlog is only allocated once there is at least a replica connected.
|
|
|
-#
|
|
|
-# repl-backlog-size 1mb
|
|
|
-
|
|
|
-# After a master has no longer connected replicas for some time, the backlog
|
|
|
-# will be freed. The following option configures the amount of seconds that
|
|
|
-# need to elapse, starting from the time the last replica disconnected, for
|
|
|
-# the backlog buffer to be freed.
|
|
|
-#
|
|
|
-# Note that replicas never free the backlog for timeout, since they may be
|
|
|
-# promoted to masters later, and should be able to correctly "partially
|
|
|
-# resynchronize" with the replicas: hence they should always accumulate backlog.
|
|
|
-#
|
|
|
-# A value of 0 means to never release the backlog.
|
|
|
-#
|
|
|
-# repl-backlog-ttl 3600
|
|
|
-
|
|
|
-# The replica priority is an integer number published by Redis in the INFO output.
|
|
|
-# It is used by Redis Sentinel in order to select a replica to promote into a
|
|
|
-# master if the master is no longer working correctly.
|
|
|
-#
|
|
|
-# A replica with a low priority number is considered better for promotion, so
|
|
|
-# for instance if there are three replicas with priority 10, 100, 25 Sentinel will
|
|
|
-# pick the one with priority 10, that is the lowest.
|
|
|
-#
|
|
|
-# However a special priority of 0 marks the replica as not able to perform the
|
|
|
-# role of master, so a replica with priority of 0 will never be selected by
|
|
|
-# Redis Sentinel for promotion.
|
|
|
-#
|
|
|
-# By default the priority is 100.
|
|
|
-replica-priority 100
|
|
|
-
|
|
|
-# It is possible for a master to stop accepting writes if there are less than
|
|
|
-# N replicas connected, having a lag less or equal than M seconds.
|
|
|
-#
|
|
|
-# The N replicas need to be in "online" state.
|
|
|
-#
|
|
|
-# The lag in seconds, that must be <= the specified value, is calculated from
|
|
|
-# the last ping received from the replica, that is usually sent every second.
|
|
|
-#
|
|
|
-# This option does not GUARANTEE that N replicas will accept the write, but
|
|
|
-# will limit the window of exposure for lost writes in case not enough replicas
|
|
|
-# are available, to the specified number of seconds.
|
|
|
-#
|
|
|
-# For example to require at least 3 replicas with a lag <= 10 seconds use:
|
|
|
-#
|
|
|
-# min-replicas-to-write 3
|
|
|
-# min-replicas-max-lag 10
|
|
|
-#
|
|
|
-# Setting one or the other to 0 disables the feature.
|
|
|
-#
|
|
|
-# By default min-replicas-to-write is set to 0 (feature disabled) and
|
|
|
-# min-replicas-max-lag is set to 10.
|
|
|
-
|
|
|
-# A Redis master is able to list the address and port of the attached
|
|
|
-# replicas in different ways. For example the "INFO replication" section
|
|
|
-# offers this information, which is used, among other tools, by
|
|
|
-# Redis Sentinel in order to discover replica instances.
|
|
|
-# Another place where this info is available is in the output of the
|
|
|
-# "ROLE" command of a master.
|
|
|
-#
|
|
|
-# The listed IP and address normally reported by a replica is obtained
|
|
|
-# in the following way:
|
|
|
-#
|
|
|
-# IP: The address is auto detected by checking the peer address
|
|
|
-# of the socket used by the replica to connect with the master.
|
|
|
-#
|
|
|
-# Port: The port is communicated by the replica during the replication
|
|
|
-# handshake, and is normally the port that the replica is using to
|
|
|
-# listen for connections.
|
|
|
-#
|
|
|
-# However when port forwarding or Network Address Translation (NAT) is
|
|
|
-# used, the replica may be actually reachable via different IP and port
|
|
|
-# pairs. The following two options can be used by a replica in order to
|
|
|
-# report to its master a specific set of IP and port, so that both INFO
|
|
|
-# and ROLE will report those values.
|
|
|
-#
|
|
|
-# There is no need to use both the options if you need to override just
|
|
|
-# the port or the IP address.
|
|
|
-#
|
|
|
-# replica-announce-ip 5.5.5.5
|
|
|
-# replica-announce-port 1234
|
|
|
-
|
|
|
-################################## SECURITY ###################################
|
|
|
-
|
|
|
-# Require clients to issue AUTH <PASSWORD> before processing any other
|
|
|
-# commands. This might be useful in environments in which you do not trust
|
|
|
-# others with access to the host running redis-server.
|
|
|
-#
|
|
|
-# This should stay commented out for backward compatibility and because most
|
|
|
-# people do not need auth (e.g. they run their own servers).
|
|
|
-#
|
|
|
-# Warning: since Redis is pretty fast an outside user can try up to
|
|
|
-# 150k passwords per second against a good box. This means that you should
|
|
|
-# use a very strong password otherwise it will be very easy to break.
|
|
|
-#
|
|
|
-requirepass hfyredis28181
|
|
|
-
|
|
|
-# Command renaming.
|
|
|
-#
|
|
|
-# It is possible to change the name of dangerous commands in a shared
|
|
|
-# environment. For instance the CONFIG command may be renamed into something
|
|
|
-# hard to guess so that it will still be available for internal-use tools
|
|
|
-# but not available for general clients.
|
|
|
-#
|
|
|
-# Example:
|
|
|
-#
|
|
|
-# rename-command CONFIG b840fc02d524045429941cc15f59e41cb7be6c52
|
|
|
-#
|
|
|
-# It is also possible to completely kill a command by renaming it into
|
|
|
-# an empty string:
|
|
|
-#
|
|
|
-# rename-command CONFIG ""
|
|
|
-#
|
|
|
-# Please note that changing the name of commands that are logged into the
|
|
|
-# AOF file or transmitted to replicas may cause problems.
|
|
|
-
|
|
|
-################################### CLIENTS ####################################
|
|
|
-
|
|
|
-# Set the max number of connected clients at the same time. By default
|
|
|
-# this limit is set to 10000 clients, however if the Redis server is not
|
|
|
-# able to configure the process file limit to allow for the specified limit
|
|
|
-# the max number of allowed clients is set to the current file limit
|
|
|
-# minus 32 (as Redis reserves a few file descriptors for internal uses).
|
|
|
-#
|
|
|
-# Once the limit is reached Redis will close all the new connections sending
|
|
|
-# an error 'max number of clients reached'.
|
|
|
-#
|
|
|
-# maxclients 10000
|
|
|
-
|
|
|
-############################## MEMORY MANAGEMENT ################################
|
|
|
-
|
|
|
-# Set a memory usage limit to the specified amount of bytes.
|
|
|
-# When the memory limit is reached Redis will try to remove keys
|
|
|
-# according to the eviction policy selected (see maxmemory-policy).
|
|
|
-#
|
|
|
-# If Redis can't remove keys according to the policy, or if the policy is
|
|
|
-# set to 'noeviction', Redis will start to reply with errors to commands
|
|
|
-# that would use more memory, like SET, LPUSH, and so on, and will continue
|
|
|
-# to reply to read-only commands like GET.
|
|
|
-#
|
|
|
-# This option is usually useful when using Redis as an LRU or LFU cache, or to
|
|
|
-# set a hard memory limit for an instance (using the 'noeviction' policy).
|
|
|
-#
|
|
|
-# WARNING: If you have replicas attached to an instance with maxmemory on,
|
|
|
-# the size of the output buffers needed to feed the replicas are subtracted
|
|
|
-# from the used memory count, so that network problems / resyncs will
|
|
|
-# not trigger a loop where keys are evicted, and in turn the output
|
|
|
-# buffer of replicas is full with DELs of keys evicted triggering the deletion
|
|
|
-# of more keys, and so forth until the database is completely emptied.
|
|
|
-#
|
|
|
-# In short... if you have replicas attached it is suggested that you set a lower
|
|
|
-# limit for maxmemory so that there is some free RAM on the system for replica
|
|
|
-# output buffers (but this is not needed if the policy is 'noeviction').
|
|
|
-#
|
|
|
-# maxmemory <bytes>
|
|
|
-
|
|
|
-# MAXMEMORY POLICY: how Redis will select what to remove when maxmemory
|
|
|
-# is reached. You can select among five behaviors:
|
|
|
-#
|
|
|
-# volatile-lru -> Evict using approximated LRU among the keys with an expire set.
|
|
|
-# allkeys-lru -> Evict any key using approximated LRU.
|
|
|
-# volatile-lfu -> Evict using approximated LFU among the keys with an expire set.
|
|
|
-# allkeys-lfu -> Evict any key using approximated LFU.
|
|
|
-# volatile-random -> Remove a random key among the ones with an expire set.
|
|
|
-# allkeys-random -> Remove a random key, any key.
|
|
|
-# volatile-ttl -> Remove the key with the nearest expire time (minor TTL)
|
|
|
-# noeviction -> Don't evict anything, just return an error on write operations.
|
|
|
-#
|
|
|
-# LRU means Least Recently Used
|
|
|
-# LFU means Least Frequently Used
|
|
|
-#
|
|
|
-# Both LRU, LFU and volatile-ttl are implemented using approximated
|
|
|
-# randomized algorithms.
|
|
|
-#
|
|
|
-# Note: with any of the above policies, Redis will return an error on write
|
|
|
-# operations, when there are no suitable keys for eviction.
|
|
|
-#
|
|
|
-# At the date of writing these commands are: set setnx setex append
|
|
|
-# incr decr rpush lpush rpushx lpushx linsert lset rpoplpush sadd
|
|
|
-# sinter sinterstore sunion sunionstore sdiff sdiffstore zadd zincrby
|
|
|
-# zunionstore zinterstore hset hsetnx hmset hincrby incrby decrby
|
|
|
-# getset mset msetnx exec sort
|
|
|
-#
|
|
|
-# The default is:
|
|
|
-#
|
|
|
-# maxmemory-policy noeviction
|
|
|
-
|
|
|
-# LRU, LFU and minimal TTL algorithms are not precise algorithms but approximated
|
|
|
-# algorithms (in order to save memory), so you can tune it for speed or
|
|
|
-# accuracy. For default Redis will check five keys and pick the one that was
|
|
|
-# used less recently, you can change the sample size using the following
|
|
|
-# configuration directive.
|
|
|
-#
|
|
|
-# The default of 5 produces good enough results. 10 Approximates very closely
|
|
|
-# true LRU but costs more CPU. 3 is faster but not very accurate.
|
|
|
-#
|
|
|
-# maxmemory-samples 5
|
|
|
-
|
|
|
-# Starting from Redis 5, by default a replica will ignore its maxmemory setting
|
|
|
-# (unless it is promoted to master after a failover or manually). It means
|
|
|
-# that the eviction of keys will be just handled by the master, sending the
|
|
|
-# DEL commands to the replica as keys evict in the master side.
|
|
|
-#
|
|
|
-# This behavior ensures that masters and replicas stay consistent, and is usually
|
|
|
-# what you want, however if your replica is writable, or you want the replica to have
|
|
|
-# a different memory setting, and you are sure all the writes performed to the
|
|
|
-# replica are idempotent, then you may change this default (but be sure to understand
|
|
|
-# what you are doing).
|
|
|
-#
|
|
|
-# Note that since the replica by default does not evict, it may end using more
|
|
|
-# memory than the one set via maxmemory (there are certain buffers that may
|
|
|
-# be larger on the replica, or data structures may sometimes take more memory and so
|
|
|
-# forth). So make sure you monitor your replicas and make sure they have enough
|
|
|
-# memory to never hit a real out-of-memory condition before the master hits
|
|
|
-# the configured maxmemory setting.
|
|
|
-#
|
|
|
-# replica-ignore-maxmemory yes
|
|
|
-
|
|
|
-############################# LAZY FREEING ####################################
|
|
|
-
|
|
|
-# Redis has two primitives to delete keys. One is called DEL and is a blocking
|
|
|
-# deletion of the object. It means that the server stops processing new commands
|
|
|
-# in order to reclaim all the memory associated with an object in a synchronous
|
|
|
-# way. If the key deleted is associated with a small object, the time needed
|
|
|
-# in order to execute the DEL command is very small and comparable to most other
|
|
|
-# O(1) or O(log_N) commands in Redis. However if the key is associated with an
|
|
|
-# aggregated value containing millions of elements, the server can block for
|
|
|
-# a long time (even seconds) in order to complete the operation.
|
|
|
-#
|
|
|
-# For the above reasons Redis also offers non blocking deletion primitives
|
|
|
-# such as UNLINK (non blocking DEL) and the ASYNC option of FLUSHALL and
|
|
|
-# FLUSHDB commands, in order to reclaim memory in background. Those commands
|
|
|
-# are executed in constant time. Another thread will incrementally free the
|
|
|
-# object in the background as fast as possible.
|
|
|
-#
|
|
|
-# DEL, UNLINK and ASYNC option of FLUSHALL and FLUSHDB are user-controlled.
|
|
|
-# It's up to the design of the application to understand when it is a good
|
|
|
-# idea to use one or the other. However the Redis server sometimes has to
|
|
|
-# delete keys or flush the whole database as a side effect of other operations.
|
|
|
-# Specifically Redis deletes objects independently of a user call in the
|
|
|
-# following scenarios:
|
|
|
-#
|
|
|
-# 1) On eviction, because of the maxmemory and maxmemory policy configurations,
|
|
|
-# in order to make room for new data, without going over the specified
|
|
|
-# memory limit.
|
|
|
-# 2) Because of expire: when a key with an associated time to live (see the
|
|
|
-# EXPIRE command) must be deleted from memory.
|
|
|
-# 3) Because of a side effect of a command that stores data on a key that may
|
|
|
-# already exist. For example the RENAME command may delete the old key
|
|
|
-# content when it is replaced with another one. Similarly SUNIONSTORE
|
|
|
-# or SORT with STORE option may delete existing keys. The SET command
|
|
|
-# itself removes any old content of the specified key in order to replace
|
|
|
-# it with the specified string.
|
|
|
-# 4) During replication, when a replica performs a full resynchronization with
|
|
|
-# its master, the content of the whole database is removed in order to
|
|
|
-# load the RDB file just transferred.
|
|
|
-#
|
|
|
-# In all the above cases the default is to delete objects in a blocking way,
|
|
|
-# like if DEL was called. However you can configure each case specifically
|
|
|
-# in order to instead release memory in a non-blocking way like if UNLINK
|
|
|
-# was called, using the following configuration directives:
|
|
|
-
|
|
|
-lazyfree-lazy-eviction no
|
|
|
-lazyfree-lazy-expire no
|
|
|
-lazyfree-lazy-server-del no
|
|
|
-replica-lazy-flush no
|
|
|
-
|
|
|
-############################## APPEND ONLY MODE ###############################
|
|
|
-
|
|
|
-# By default Redis asynchronously dumps the dataset on disk. This mode is
|
|
|
-# good enough in many applications, but an issue with the Redis process or
|
|
|
-# a power outage may result into a few minutes of writes lost (depending on
|
|
|
-# the configured save points).
|
|
|
-#
|
|
|
-# The Append Only File is an alternative persistence mode that provides
|
|
|
-# much better durability. For instance using the default data fsync policy
|
|
|
-# (see later in the config file) Redis can lose just one second of writes in a
|
|
|
-# dramatic event like a server power outage, or a single write if something
|
|
|
-# wrong with the Redis process itself happens, but the operating system is
|
|
|
-# still running correctly.
|
|
|
-#
|
|
|
-# AOF and RDB persistence can be enabled at the same time without problems.
|
|
|
-# If the AOF is enabled on startup Redis will load the AOF, that is the file
|
|
|
-# with the better durability guarantees.
|
|
|
-#
|
|
|
-# Please check http://redis.io/topics/persistence for more information.
|
|
|
-
|
|
|
-appendonly no
|
|
|
-
|
|
|
-# The name of the append only file (default: "appendonly.aof")
|
|
|
-
|
|
|
-appendfilename "appendonly.aof"
|
|
|
-
|
|
|
-# The fsync() call tells the Operating System to actually write data on disk
|
|
|
-# instead of waiting for more data in the output buffer. Some OS will really flush
|
|
|
-# data on disk, some other OS will just try to do it ASAP.
|
|
|
-#
|
|
|
-# Redis supports three different modes:
|
|
|
-#
|
|
|
-# no: don't fsync, just let the OS flush the data when it wants. Faster.
|
|
|
-# always: fsync after every write to the append only log. Slow, Safest.
|
|
|
-# everysec: fsync only one time every second. Compromise.
|
|
|
-#
|
|
|
-# The default is "everysec", as that's usually the right compromise between
|
|
|
-# speed and data safety. It's up to you to understand if you can relax this to
|
|
|
-# "no" that will let the operating system flush the output buffer when
|
|
|
-# it wants, for better performances (but if you can live with the idea of
|
|
|
-# some data loss consider the default persistence mode that's snapshotting),
|
|
|
-# or on the contrary, use "always" that's very slow but a bit safer than
|
|
|
-# everysec.
|
|
|
-#
|
|
|
-# More details please check the following article:
|
|
|
-# http://antirez.com/post/redis-persistence-demystified.html
|
|
|
-#
|
|
|
-# If unsure, use "everysec".
|
|
|
-
|
|
|
-# appendfsync always
|
|
|
-appendfsync everysec
|
|
|
-# appendfsync no
|
|
|
-
|
|
|
-# When the AOF fsync policy is set to always or everysec, and a background
|
|
|
-# saving process (a background save or AOF log background rewriting) is
|
|
|
-# performing a lot of I/O against the disk, in some Linux configurations
|
|
|
-# Redis may block too long on the fsync() call. Note that there is no fix for
|
|
|
-# this currently, as even performing fsync in a different thread will block
|
|
|
-# our synchronous write(2) call.
|
|
|
-#
|
|
|
-# In order to mitigate this problem it's possible to use the following option
|
|
|
-# that will prevent fsync() from being called in the main process while a
|
|
|
-# BGSAVE or BGREWRITEAOF is in progress.
|
|
|
-#
|
|
|
-# This means that while another child is saving, the durability of Redis is
|
|
|
-# the same as "appendfsync none". In practical terms, this means that it is
|
|
|
-# possible to lose up to 30 seconds of log in the worst scenario (with the
|
|
|
-# default Linux settings).
|
|
|
-#
|
|
|
-# If you have latency problems turn this to "yes". Otherwise leave it as
|
|
|
-# "no" that is the safest pick from the point of view of durability.
|
|
|
-
|
|
|
-no-appendfsync-on-rewrite no
|
|
|
-
|
|
|
-# Automatic rewrite of the append only file.
|
|
|
-# Redis is able to automatically rewrite the log file implicitly calling
|
|
|
-# BGREWRITEAOF when the AOF log size grows by the specified percentage.
|
|
|
-#
|
|
|
-# This is how it works: Redis remembers the size of the AOF file after the
|
|
|
-# latest rewrite (if no rewrite has happened since the restart, the size of
|
|
|
-# the AOF at startup is used).
|
|
|
-#
|
|
|
-# This base size is compared to the current size. If the current size is
|
|
|
-# bigger than the specified percentage, the rewrite is triggered. Also
|
|
|
-# you need to specify a minimal size for the AOF file to be rewritten, this
|
|
|
-# is useful to avoid rewriting the AOF file even if the percentage increase
|
|
|
-# is reached but it is still pretty small.
|
|
|
-#
|
|
|
-# Specify a percentage of zero in order to disable the automatic AOF
|
|
|
-# rewrite feature.
|
|
|
-
|
|
|
-auto-aof-rewrite-percentage 100
|
|
|
-auto-aof-rewrite-min-size 64mb
|
|
|
-
|
|
|
-# An AOF file may be found to be truncated at the end during the Redis
|
|
|
-# startup process, when the AOF data gets loaded back into memory.
|
|
|
-# This may happen when the system where Redis is running
|
|
|
-# crashes, especially when an ext4 filesystem is mounted without the
|
|
|
-# data=ordered option (however this can't happen when Redis itself
|
|
|
-# crashes or aborts but the operating system still works correctly).
|
|
|
-#
|
|
|
-# Redis can either exit with an error when this happens, or load as much
|
|
|
-# data as possible (the default now) and start if the AOF file is found
|
|
|
-# to be truncated at the end. The following option controls this behavior.
|
|
|
-#
|
|
|
-# If aof-load-truncated is set to yes, a truncated AOF file is loaded and
|
|
|
-# the Redis server starts emitting a log to inform the user of the event.
|
|
|
-# Otherwise if the option is set to no, the server aborts with an error
|
|
|
-# and refuses to start. When the option is set to no, the user requires
|
|
|
-# to fix the AOF file using the "redis-check-aof" utility before to restart
|
|
|
-# the server.
|
|
|
-#
|
|
|
-# Note that if the AOF file will be found to be corrupted in the middle
|
|
|
-# the server will still exit with an error. This option only applies when
|
|
|
-# Redis will try to read more data from the AOF file but not enough bytes
|
|
|
-# will be found.
|
|
|
-aof-load-truncated yes
|
|
|
-
|
|
|
-# When rewriting the AOF file, Redis is able to use an RDB preamble in the
|
|
|
-# AOF file for faster rewrites and recoveries. When this option is turned
|
|
|
-# on the rewritten AOF file is composed of two different stanzas:
|
|
|
-#
|
|
|
-# [RDB file][AOF tail]
|
|
|
-#
|
|
|
-# When loading Redis recognizes that the AOF file starts with the "REDIS"
|
|
|
-# string and loads the prefixed RDB file, and continues loading the AOF
|
|
|
-# tail.
|
|
|
-aof-use-rdb-preamble yes
|
|
|
-
|
|
|
-################################ LUA SCRIPTING ###############################
|
|
|
-
|
|
|
-# Max execution time of a Lua script in milliseconds.
|
|
|
-#
|
|
|
-# If the maximum execution time is reached Redis will log that a script is
|
|
|
-# still in execution after the maximum allowed time and will start to
|
|
|
-# reply to queries with an error.
|
|
|
-#
|
|
|
-# When a long running script exceeds the maximum execution time only the
|
|
|
-# SCRIPT KILL and SHUTDOWN NOSAVE commands are available. The first can be
|
|
|
-# used to stop a script that did not yet called write commands. The second
|
|
|
-# is the only way to shut down the server in the case a write command was
|
|
|
-# already issued by the script but the user doesn't want to wait for the natural
|
|
|
-# termination of the script.
|
|
|
-#
|
|
|
-# Set it to 0 or a negative value for unlimited execution without warnings.
|
|
|
-lua-time-limit 5000
|
|
|
-
|
|
|
-################################ REDIS CLUSTER ###############################
|
|
|
-
|
|
|
-# Normal Redis instances can't be part of a Redis Cluster; only nodes that are
|
|
|
-# started as cluster nodes can. In order to start a Redis instance as a
|
|
|
-# cluster node enable the cluster support uncommenting the following:
|
|
|
-#
|
|
|
-# cluster-enabled yes
|
|
|
-
|
|
|
-# Every cluster node has a cluster configuration file. This file is not
|
|
|
-# intended to be edited by hand. It is created and updated by Redis nodes.
|
|
|
-# Every Redis Cluster node requires a different cluster configuration file.
|
|
|
-# Make sure that instances running in the same system do not have
|
|
|
-# overlapping cluster configuration file names.
|
|
|
-#
|
|
|
-# cluster-config-file nodes-6379.conf
|
|
|
-
|
|
|
-# Cluster node timeout is the amount of milliseconds a node must be unreachable
|
|
|
-# for it to be considered in failure state.
|
|
|
-# Most other internal time limits are multiple of the node timeout.
|
|
|
-#
|
|
|
-# cluster-node-timeout 15000
|
|
|
-
|
|
|
-# A replica of a failing master will avoid to start a failover if its data
|
|
|
-# looks too old.
|
|
|
-#
|
|
|
-# There is no simple way for a replica to actually have an exact measure of
|
|
|
-# its "data age", so the following two checks are performed:
|
|
|
-#
|
|
|
-# 1) If there are multiple replicas able to failover, they exchange messages
|
|
|
-# in order to try to give an advantage to the replica with the best
|
|
|
-# replication offset (more data from the master processed).
|
|
|
-# Replicas will try to get their rank by offset, and apply to the start
|
|
|
-# of the failover a delay proportional to their rank.
|
|
|
-#
|
|
|
-# 2) Every single replica computes the time of the last interaction with
|
|
|
-# its master. This can be the last ping or command received (if the master
|
|
|
-# is still in the "connected" state), or the time that elapsed since the
|
|
|
-# disconnection with the master (if the replication link is currently down).
|
|
|
-# If the last interaction is too old, the replica will not try to failover
|
|
|
-# at all.
|
|
|
-#
|
|
|
-# The point "2" can be tuned by user. Specifically a replica will not perform
|
|
|
-# the failover if, since the last interaction with the master, the time
|
|
|
-# elapsed is greater than:
|
|
|
-#
|
|
|
-# (node-timeout * replica-validity-factor) + repl-ping-replica-period
|
|
|
-#
|
|
|
-# So for example if node-timeout is 30 seconds, and the replica-validity-factor
|
|
|
-# is 10, and assuming a default repl-ping-replica-period of 10 seconds, the
|
|
|
-# replica will not try to failover if it was not able to talk with the master
|
|
|
-# for longer than 310 seconds.
|
|
|
-#
|
|
|
-# A large replica-validity-factor may allow replicas with too old data to failover
|
|
|
-# a master, while a too small value may prevent the cluster from being able to
|
|
|
-# elect a replica at all.
|
|
|
-#
|
|
|
-# For maximum availability, it is possible to set the replica-validity-factor
|
|
|
-# to a value of 0, which means, that replicas will always try to failover the
|
|
|
-# master regardless of the last time they interacted with the master.
|
|
|
-# (However they'll always try to apply a delay proportional to their
|
|
|
-# offset rank).
|
|
|
-#
|
|
|
-# Zero is the only value able to guarantee that when all the partitions heal
|
|
|
-# the cluster will always be able to continue.
|
|
|
-#
|
|
|
-# cluster-replica-validity-factor 10
|
|
|
-
|
|
|
-# Cluster replicas are able to migrate to orphaned masters, that are masters
|
|
|
-# that are left without working replicas. This improves the cluster ability
|
|
|
-# to resist to failures as otherwise an orphaned master can't be failed over
|
|
|
-# in case of failure if it has no working replicas.
|
|
|
-#
|
|
|
-# Replicas migrate to orphaned masters only if there are still at least a
|
|
|
-# given number of other working replicas for their old master. This number
|
|
|
-# is the "migration barrier". A migration barrier of 1 means that a replica
|
|
|
-# will migrate only if there is at least 1 other working replica for its master
|
|
|
-# and so forth. It usually reflects the number of replicas you want for every
|
|
|
-# master in your cluster.
|
|
|
-#
|
|
|
-# Default is 1 (replicas migrate only if their masters remain with at least
|
|
|
-# one replica). To disable migration just set it to a very large value.
|
|
|
-# A value of 0 can be set but is useful only for debugging and dangerous
|
|
|
-# in production.
|
|
|
-#
|
|
|
-# cluster-migration-barrier 1
|
|
|
-
|
|
|
-# By default Redis Cluster nodes stop accepting queries if they detect there
|
|
|
-# is at least an hash slot uncovered (no available node is serving it).
|
|
|
-# This way if the cluster is partially down (for example a range of hash slots
|
|
|
-# are no longer covered) all the cluster becomes, eventually, unavailable.
|
|
|
-# It automatically returns available as soon as all the slots are covered again.
|
|
|
-#
|
|
|
-# However sometimes you want the subset of the cluster which is working,
|
|
|
-# to continue to accept queries for the part of the key space that is still
|
|
|
-# covered. In order to do so, just set the cluster-require-full-coverage
|
|
|
-# option to no.
|
|
|
-#
|
|
|
-# cluster-require-full-coverage yes
|
|
|
-
|
|
|
-# This option, when set to yes, prevents replicas from trying to failover its
|
|
|
-# master during master failures. However the master can still perform a
|
|
|
-# manual failover, if forced to do so.
|
|
|
-#
|
|
|
-# This is useful in different scenarios, especially in the case of multiple
|
|
|
-# data center operations, where we want one side to never be promoted if not
|
|
|
-# in the case of a total DC failure.
|
|
|
-#
|
|
|
-# cluster-replica-no-failover no
|
|
|
-
|
|
|
-# In order to setup your cluster make sure to read the documentation
|
|
|
-# available at http://redis.io web site.
|
|
|
-
|
|
|
-########################## CLUSTER DOCKER/NAT support ########################
|
|
|
-
|
|
|
-# In certain deployments, Redis Cluster nodes address discovery fails, because
|
|
|
-# addresses are NAT-ted or because ports are forwarded (the typical case is
|
|
|
-# Docker and other containers).
|
|
|
-#
|
|
|
-# In order to make Redis Cluster working in such environments, a static
|
|
|
-# configuration where each node knows its public address is needed. The
|
|
|
-# following two options are used for this scope, and are:
|
|
|
-#
|
|
|
-# * cluster-announce-ip
|
|
|
-# * cluster-announce-port
|
|
|
-# * cluster-announce-bus-port
|
|
|
-#
|
|
|
-# Each instruct the node about its address, client port, and cluster message
|
|
|
-# bus port. The information is then published in the header of the bus packets
|
|
|
-# so that other nodes will be able to correctly map the address of the node
|
|
|
-# publishing the information.
|
|
|
-#
|
|
|
-# If the above options are not used, the normal Redis Cluster auto-detection
|
|
|
-# will be used instead.
|
|
|
-#
|
|
|
-# Note that when remapped, the bus port may not be at the fixed offset of
|
|
|
-# clients port + 10000, so you can specify any port and bus-port depending
|
|
|
-# on how they get remapped. If the bus-port is not set, a fixed offset of
|
|
|
-# 10000 will be used as usually.
|
|
|
-#
|
|
|
-# Example:
|
|
|
-#
|
|
|
-# cluster-announce-ip 10.1.1.5
|
|
|
-# cluster-announce-port 6379
|
|
|
-# cluster-announce-bus-port 6380
|
|
|
-
|
|
|
-################################## SLOW LOG ###################################
|
|
|
-
|
|
|
-# The Redis Slow Log is a system to log queries that exceeded a specified
|
|
|
-# execution time. The execution time does not include the I/O operations
|
|
|
-# like talking with the client, sending the reply and so forth,
|
|
|
-# but just the time needed to actually execute the command (this is the only
|
|
|
-# stage of command execution where the thread is blocked and can not serve
|
|
|
-# other requests in the meantime).
|
|
|
-#
|
|
|
-# You can configure the slow log with two parameters: one tells Redis
|
|
|
-# what is the execution time, in microseconds, to exceed in order for the
|
|
|
-# command to get logged, and the other parameter is the length of the
|
|
|
-# slow log. When a new command is logged the oldest one is removed from the
|
|
|
-# queue of logged commands.
|
|
|
-
|
|
|
-# The following time is expressed in microseconds, so 1000000 is equivalent
|
|
|
-# to one second. Note that a negative number disables the slow log, while
|
|
|
-# a value of zero forces the logging of every command.
|
|
|
-slowlog-log-slower-than 10000
|
|
|
-
|
|
|
-# There is no limit to this length. Just be aware that it will consume memory.
|
|
|
-# You can reclaim memory used by the slow log with SLOWLOG RESET.
|
|
|
-slowlog-max-len 128
|
|
|
-
|
|
|
-################################ LATENCY MONITOR ##############################
|
|
|
-
|
|
|
-# The Redis latency monitoring subsystem samples different operations
|
|
|
-# at runtime in order to collect data related to possible sources of
|
|
|
-# latency of a Redis instance.
|
|
|
-#
|
|
|
-# Via the LATENCY command this information is available to the user that can
|
|
|
-# print graphs and obtain reports.
|
|
|
-#
|
|
|
-# The system only logs operations that were performed in a time equal or
|
|
|
-# greater than the amount of milliseconds specified via the
|
|
|
-# latency-monitor-threshold configuration directive. When its value is set
|
|
|
-# to zero, the latency monitor is turned off.
|
|
|
-#
|
|
|
-# By default latency monitoring is disabled since it is mostly not needed
|
|
|
-# if you don't have latency issues, and collecting data has a performance
|
|
|
-# impact, that while very small, can be measured under big load. Latency
|
|
|
-# monitoring can easily be enabled at runtime using the command
|
|
|
-# "CONFIG SET latency-monitor-threshold <milliseconds>" if needed.
|
|
|
-latency-monitor-threshold 0
|
|
|
-
|
|
|
-############################# EVENT NOTIFICATION ##############################
|
|
|
-
|
|
|
-# Redis can notify Pub/Sub clients about events happening in the key space.
|
|
|
-# This feature is documented at http://redis.io/topics/notifications
|
|
|
-#
|
|
|
-# For instance if keyspace events notification is enabled, and a client
|
|
|
-# performs a DEL operation on key "foo" stored in the Database 0, two
|
|
|
-# messages will be published via Pub/Sub:
|
|
|
-#
|
|
|
-# PUBLISH __keyspace@0__:foo del
|
|
|
-# PUBLISH __keyevent@0__:del foo
|
|
|
-#
|
|
|
-# It is possible to select the events that Redis will notify among a set
|
|
|
-# of classes. Every class is identified by a single character:
|
|
|
-#
|
|
|
-# K Keyspace events, published with __keyspace@<db>__ prefix.
|
|
|
-# E Keyevent events, published with __keyevent@<db>__ prefix.
|
|
|
-# g Generic commands (non-type specific) like DEL, EXPIRE, RENAME, ...
|
|
|
-# $ String commands
|
|
|
-# l List commands
|
|
|
-# s Set commands
|
|
|
-# h Hash commands
|
|
|
-# z Sorted set commands
|
|
|
-# x Expired events (events generated every time a key expires)
|
|
|
-# e Evicted events (events generated when a key is evicted for maxmemory)
|
|
|
-# A Alias for g$lshzxe, so that the "AKE" string means all the events.
|
|
|
-#
|
|
|
-# The "notify-keyspace-events" takes as argument a string that is composed
|
|
|
-# of zero or multiple characters. The empty string means that notifications
|
|
|
-# are disabled.
|
|
|
-#
|
|
|
-# Example: to enable list and generic events, from the point of view of the
|
|
|
-# event name, use:
|
|
|
-#
|
|
|
-# notify-keyspace-events Elg
|
|
|
-#
|
|
|
-# Example 2: to get the stream of the expired keys subscribing to channel
|
|
|
-# name __keyevent@0__:expired use:
|
|
|
-#
|
|
|
-# notify-keyspace-events Ex
|
|
|
-#
|
|
|
-# By default all notifications are disabled because most users don't need
|
|
|
-# this feature and the feature has some overhead. Note that if you don't
|
|
|
-# specify at least one of K or E, no events will be delivered.
|
|
|
-notify-keyspace-events ""
|
|
|
-
|
|
|
-############################### ADVANCED CONFIG ###############################
|
|
|
-
|
|
|
-# Hashes are encoded using a memory efficient data structure when they have a
|
|
|
-# small number of entries, and the biggest entry does not exceed a given
|
|
|
-# threshold. These thresholds can be configured using the following directives.
|
|
|
-hash-max-ziplist-entries 512
|
|
|
-hash-max-ziplist-value 64
|
|
|
-
|
|
|
-# Lists are also encoded in a special way to save a lot of space.
|
|
|
-# The number of entries allowed per internal list node can be specified
|
|
|
-# as a fixed maximum size or a maximum number of elements.
|
|
|
-# For a fixed maximum size, use -5 through -1, meaning:
|
|
|
-# -5: max size: 64 Kb <-- not recommended for normal workloads
|
|
|
-# -4: max size: 32 Kb <-- not recommended
|
|
|
-# -3: max size: 16 Kb <-- probably not recommended
|
|
|
-# -2: max size: 8 Kb <-- good
|
|
|
-# -1: max size: 4 Kb <-- good
|
|
|
-# Positive numbers mean store up to _exactly_ that number of elements
|
|
|
-# per list node.
|
|
|
-# The highest performing option is usually -2 (8 Kb size) or -1 (4 Kb size),
|
|
|
-# but if your use case is unique, adjust the settings as necessary.
|
|
|
-list-max-ziplist-size -2
|
|
|
-
|
|
|
-# Lists may also be compressed.
|
|
|
-# Compress depth is the number of quicklist ziplist nodes from *each* side of
|
|
|
-# the list to *exclude* from compression. The head and tail of the list
|
|
|
-# are always uncompressed for fast push/pop operations. Settings are:
|
|
|
-# 0: disable all list compression
|
|
|
-# 1: depth 1 means "don't start compressing until after 1 node into the list,
|
|
|
-# going from either the head or tail"
|
|
|
-# So: [head]->node->node->...->node->[tail]
|
|
|
-# [head], [tail] will always be uncompressed; inner nodes will compress.
|
|
|
-# 2: [head]->[next]->node->node->...->node->[prev]->[tail]
|
|
|
-# 2 here means: don't compress head or head->next or tail->prev or tail,
|
|
|
-# but compress all nodes between them.
|
|
|
-# 3: [head]->[next]->[next]->node->node->...->node->[prev]->[prev]->[tail]
|
|
|
-# etc.
|
|
|
-list-compress-depth 0
|
|
|
-
|
|
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-# Sets have a special encoding in just one case: when a set is composed
|
|
|
-# of just strings that happen to be integers in radix 10 in the range
|
|
|
-# of 64 bit signed integers.
|
|
|
-# The following configuration setting sets the limit in the size of the
|
|
|
-# set in order to use this special memory saving encoding.
|
|
|
-set-max-intset-entries 512
|
|
|
-
|
|
|
-# Similarly to hashes and lists, sorted sets are also specially encoded in
|
|
|
-# order to save a lot of space. This encoding is only used when the length and
|
|
|
-# elements of a sorted set are below the following limits:
|
|
|
-zset-max-ziplist-entries 128
|
|
|
-zset-max-ziplist-value 64
|
|
|
-
|
|
|
-# HyperLogLog sparse representation bytes limit. The limit includes the
|
|
|
-# 16 bytes header. When an HyperLogLog using the sparse representation crosses
|
|
|
-# this limit, it is converted into the dense representation.
|
|
|
-#
|
|
|
-# A value greater than 16000 is totally useless, since at that point the
|
|
|
-# dense representation is more memory efficient.
|
|
|
-#
|
|
|
-# The suggested value is ~ 3000 in order to have the benefits of
|
|
|
-# the space efficient encoding without slowing down too much PFADD,
|
|
|
-# which is O(N) with the sparse encoding. The value can be raised to
|
|
|
-# ~ 10000 when CPU is not a concern, but space is, and the data set is
|
|
|
-# composed of many HyperLogLogs with cardinality in the 0 - 15000 range.
|
|
|
-hll-sparse-max-bytes 3000
|
|
|
-
|
|
|
-# Streams macro node max size / items. The stream data structure is a radix
|
|
|
-# tree of big nodes that encode multiple items inside. Using this configuration
|
|
|
-# it is possible to configure how big a single node can be in bytes, and the
|
|
|
-# maximum number of items it may contain before switching to a new node when
|
|
|
-# appending new stream entries. If any of the following settings are set to
|
|
|
-# zero, the limit is ignored, so for instance it is possible to set just a
|
|
|
-# max entires limit by setting max-bytes to 0 and max-entries to the desired
|
|
|
-# value.
|
|
|
-stream-node-max-bytes 4096
|
|
|
-stream-node-max-entries 100
|
|
|
-
|
|
|
-# Active rehashing uses 1 millisecond every 100 milliseconds of CPU time in
|
|
|
-# order to help rehashing the main Redis hash table (the one mapping top-level
|
|
|
-# keys to values). The hash table implementation Redis uses (see dict.c)
|
|
|
-# performs a lazy rehashing: the more operation you run into a hash table
|
|
|
-# that is rehashing, the more rehashing "steps" are performed, so if the
|
|
|
-# server is idle the rehashing is never complete and some more memory is used
|
|
|
-# by the hash table.
|
|
|
-#
|
|
|
-# The default is to use this millisecond 10 times every second in order to
|
|
|
-# actively rehash the main dictionaries, freeing memory when possible.
|
|
|
-#
|
|
|
-# If unsure:
|
|
|
-# use "activerehashing no" if you have hard latency requirements and it is
|
|
|
-# not a good thing in your environment that Redis can reply from time to time
|
|
|
-# to queries with 2 milliseconds delay.
|
|
|
-#
|
|
|
-# use "activerehashing yes" if you don't have such hard requirements but
|
|
|
-# want to free memory asap when possible.
|
|
|
-activerehashing yes
|
|
|
-
|
|
|
-# The client output buffer limits can be used to force disconnection of clients
|
|
|
-# that are not reading data from the server fast enough for some reason (a
|
|
|
-# common reason is that a Pub/Sub client can't consume messages as fast as the
|
|
|
-# publisher can produce them).
|
|
|
-#
|
|
|
-# The limit can be set differently for the three different classes of clients:
|
|
|
-#
|
|
|
-# normal -> normal clients including MONITOR clients
|
|
|
-# replica -> replica clients
|
|
|
-# pubsub -> clients subscribed to at least one pubsub channel or pattern
|
|
|
-#
|
|
|
-# The syntax of every client-output-buffer-limit directive is the following:
|
|
|
-#
|
|
|
-# client-output-buffer-limit <class> <hard limit> <soft limit> <soft seconds>
|
|
|
-#
|
|
|
-# A client is immediately disconnected once the hard limit is reached, or if
|
|
|
-# the soft limit is reached and remains reached for the specified number of
|
|
|
-# seconds (continuously).
|
|
|
-# So for instance if the hard limit is 32 megabytes and the soft limit is
|
|
|
-# 16 megabytes / 10 seconds, the client will get disconnected immediately
|
|
|
-# if the size of the output buffers reach 32 megabytes, but will also get
|
|
|
-# disconnected if the client reaches 16 megabytes and continuously overcomes
|
|
|
-# the limit for 10 seconds.
|
|
|
-#
|
|
|
-# By default normal clients are not limited because they don't receive data
|
|
|
-# without asking (in a push way), but just after a request, so only
|
|
|
-# asynchronous clients may create a scenario where data is requested faster
|
|
|
-# than it can read.
|
|
|
-#
|
|
|
-# Instead there is a default limit for pubsub and replica clients, since
|
|
|
-# subscribers and replicas receive data in a push fashion.
|
|
|
-#
|
|
|
-# Both the hard or the soft limit can be disabled by setting them to zero.
|
|
|
-client-output-buffer-limit normal 0 0 0
|
|
|
-client-output-buffer-limit replica 256mb 64mb 60
|
|
|
-client-output-buffer-limit pubsub 32mb 8mb 60
|
|
|
-
|
|
|
-# Client query buffers accumulate new commands. They are limited to a fixed
|
|
|
-# amount by default in order to avoid that a protocol desynchronization (for
|
|
|
-# instance due to a bug in the client) will lead to unbound memory usage in
|
|
|
-# the query buffer. However you can configure it here if you have very special
|
|
|
-# needs, such us huge multi/exec requests or alike.
|
|
|
-#
|
|
|
-# client-query-buffer-limit 1gb
|
|
|
-
|
|
|
-# In the Redis protocol, bulk requests, that are, elements representing single
|
|
|
-# strings, are normally limited ot 512 mb. However you can change this limit
|
|
|
-# here.
|
|
|
-#
|
|
|
-# proto-max-bulk-len 512mb
|
|
|
-
|
|
|
-# Redis calls an internal function to perform many background tasks, like
|
|
|
-# closing connections of clients in timeout, purging expired keys that are
|
|
|
-# never requested, and so forth.
|
|
|
-#
|
|
|
-# Not all tasks are performed with the same frequency, but Redis checks for
|
|
|
-# tasks to perform according to the specified "hz" value.
|
|
|
-#
|
|
|
-# By default "hz" is set to 10. Raising the value will use more CPU when
|
|
|
-# Redis is idle, but at the same time will make Redis more responsive when
|
|
|
-# there are many keys expiring at the same time, and timeouts may be
|
|
|
-# handled with more precision.
|
|
|
-#
|
|
|
-# The range is between 1 and 500, however a value over 100 is usually not
|
|
|
-# a good idea. Most users should use the default of 10 and raise this up to
|
|
|
-# 100 only in environments where very low latency is required.
|
|
|
-hz 10
|
|
|
-
|
|
|
-# Normally it is useful to have an HZ value which is proportional to the
|
|
|
-# number of clients connected. This is useful in order, for instance, to
|
|
|
-# avoid too many clients are processed for each background task invocation
|
|
|
-# in order to avoid latency spikes.
|
|
|
-#
|
|
|
-# Since the default HZ value by default is conservatively set to 10, Redis
|
|
|
-# offers, and enables by default, the ability to use an adaptive HZ value
|
|
|
-# which will temporary raise when there are many connected clients.
|
|
|
-#
|
|
|
-# When dynamic HZ is enabled, the actual configured HZ will be used as
|
|
|
-# as a baseline, but multiples of the configured HZ value will be actually
|
|
|
-# used as needed once more clients are connected. In this way an idle
|
|
|
-# instance will use very little CPU time while a busy instance will be
|
|
|
-# more responsive.
|
|
|
-dynamic-hz yes
|
|
|
-
|
|
|
-# When a child rewrites the AOF file, if the following option is enabled
|
|
|
-# the file will be fsync-ed every 32 MB of data generated. This is useful
|
|
|
-# in order to commit the file to the disk more incrementally and avoid
|
|
|
-# big latency spikes.
|
|
|
-aof-rewrite-incremental-fsync yes
|
|
|
-
|
|
|
-# When redis saves RDB file, if the following option is enabled
|
|
|
-# the file will be fsync-ed every 32 MB of data generated. This is useful
|
|
|
-# in order to commit the file to the disk more incrementally and avoid
|
|
|
-# big latency spikes.
|
|
|
-rdb-save-incremental-fsync yes
|
|
|
-
|
|
|
-
|
