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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-14 13:40:54 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-14 13:40:54 +0000
commit317c0644ccf108aa23ef3fd8358bd66c2840bfc0 (patch)
treec417b3d25c86b775989cb5ac042f37611b626c8a /sentinel.conf
parentInitial commit. (diff)
downloadredis-317c0644ccf108aa23ef3fd8358bd66c2840bfc0.tar.xz
redis-317c0644ccf108aa23ef3fd8358bd66c2840bfc0.zip
Adding upstream version 5:7.2.4.upstream/5%7.2.4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+# Example sentinel.conf
+
+# By default protected mode is disabled in sentinel mode. Sentinel is reachable
+# from interfaces different than localhost. Make sure the sentinel instance is
+# protected from the outside world via firewalling or other means.
+protected-mode no
+
+# port <sentinel-port>
+# The port that this sentinel instance will run on
+port 26379
+
+# By default Redis Sentinel does not run as a daemon. Use 'yes' if you need it.
+# Note that Redis will write a pid file in /var/run/redis-sentinel.pid when
+# daemonized.
+daemonize no
+
+# When running daemonized, Redis Sentinel writes a pid file in
+# /var/run/redis-sentinel.pid by default. You can specify a custom pid file
+# location here.
+pidfile /var/run/redis-sentinel.pid
+
+# Specify the server verbosity level.
+# This can be one of:
+# debug (a lot of information, useful for development/testing)
+# verbose (many rarely useful info, but not a mess like the debug level)
+# notice (moderately verbose, what you want in production probably)
+# warning (only very important / critical messages are logged)
+# nothing (nothing is logged)
+loglevel notice
+
+# Specify the log file name. Also the empty string can be used to force
+# Sentinel to log on the standard output. Note that if you use standard
+# output for logging but daemonize, logs will be sent to /dev/null
+logfile ""
+
+# To enable logging to the system logger, just set 'syslog-enabled' to yes,
+# and optionally update the other syslog parameters to suit your needs.
+# syslog-enabled no
+
+# Specify the syslog identity.
+# syslog-ident sentinel
+
+# Specify the syslog facility. Must be USER or between LOCAL0-LOCAL7.
+# syslog-facility local0
+
+# sentinel announce-ip <ip>
+# sentinel announce-port <port>
+#
+# The above two configuration directives are useful in environments where,
+# because of NAT, Sentinel is reachable from outside via a non-local address.
+#
+# When announce-ip is provided, the Sentinel will claim the specified IP address
+# in HELLO messages used to gossip its presence, instead of auto-detecting the
+# local address as it usually does.
+#
+# Similarly when announce-port is provided and is valid and non-zero, Sentinel
+# will announce the specified TCP port.
+#
+# The two options don't need to be used together, if only announce-ip is
+# provided, the Sentinel will announce the specified IP and the server port
+# as specified by the "port" option. If only announce-port is provided, the
+# Sentinel will announce the auto-detected local IP and the specified port.
+#
+# Example:
+#
+# sentinel announce-ip 1.2.3.4
+
+# dir <working-directory>
+# Every long running process should have a well-defined working directory.
+# For Redis Sentinel to chdir to /tmp at startup is the simplest thing
+# for the process to don't interfere with administrative tasks such as
+# unmounting filesystems.
+dir /tmp
+
+# sentinel monitor <master-name> <ip> <redis-port> <quorum>
+#
+# Tells Sentinel to monitor this master, and to consider it in O_DOWN
+# (Objectively Down) state only if at least <quorum> sentinels agree.
+#
+# Note that whatever is the ODOWN quorum, a Sentinel will require to
+# be elected by the majority of the known Sentinels in order to
+# start a failover, so no failover can be performed in minority.
+#
+# Replicas are auto-discovered, so you don't need to specify replicas in
+# any way. Sentinel itself will rewrite this configuration file adding
+# the replicas using additional configuration options.
+# Also note that the configuration file is rewritten when a
+# replica is promoted to master.
+#
+# Note: master name should not include special characters or spaces.
+# The valid charset is A-z 0-9 and the three characters ".-_".
+sentinel monitor mymaster 127.0.0.1 6379 2
+
+# sentinel auth-pass <master-name> <password>
+#
+# Set the password to use to authenticate with the master and replicas.
+# Useful if there is a password set in the Redis instances to monitor.
+#
+# Note that the master password is also used for replicas, so it is not
+# possible to set a different password in masters and replicas instances
+# if you want to be able to monitor these instances with Sentinel.
+#
+# However you can have Redis instances without the authentication enabled
+# mixed with Redis instances requiring the authentication (as long as the
+# password set is the same for all the instances requiring the password) as
+# the AUTH command will have no effect in Redis instances with authentication
+# switched off.
+#
+# Example:
+#
+# sentinel auth-pass mymaster MySUPER--secret-0123passw0rd
+
+# sentinel auth-user <master-name> <username>
+#
+# This is useful in order to authenticate to instances having ACL capabilities,
+# that is, running Redis 6.0 or greater. When just auth-pass is provided the
+# Sentinel instance will authenticate to Redis using the old "AUTH <pass>"
+# method. When also an username is provided, it will use "AUTH <user> <pass>".
+# In the Redis servers side, the ACL to provide just minimal access to
+# Sentinel instances, should be configured along the following lines:
+#
+# user sentinel-user >somepassword +client +subscribe +publish \
+# +ping +info +multi +slaveof +config +client +exec on
+
+# sentinel down-after-milliseconds <master-name> <milliseconds>
+#
+# Number of milliseconds the master (or any attached replica or sentinel) should
+# be unreachable (as in, not acceptable reply to PING, continuously, for the
+# specified period) in order to consider it in S_DOWN state (Subjectively
+# Down).
+#
+# Default is 30 seconds.
+sentinel down-after-milliseconds mymaster 30000
+
+# IMPORTANT NOTE: starting with Redis 6.2 ACL capability is supported for
+# Sentinel mode, please refer to the Redis website https://redis.io/topics/acl
+# for more details.
+
+# Sentinel's ACL users are defined in the following format:
+#
+# user <username> ... acl rules ...
+#
+# For example:
+#
+# user worker +@admin +@connection ~* on >ffa9203c493aa99
+#
+# For more information about ACL configuration please refer to the Redis
+# website at https://redis.io/topics/acl and redis server configuration
+# template redis.conf.
+
+# ACL LOG
+#
+# The ACL Log tracks failed commands and authentication events associated
+# with ACLs. The ACL Log is useful to troubleshoot failed commands blocked
+# by ACLs. The ACL Log is stored in memory. You can reclaim memory with
+# ACL LOG RESET. Define the maximum entry length of the ACL Log below.
+acllog-max-len 128
+
+# Using an external ACL file
+#
+# Instead of configuring users here in this file, it is possible to use
+# a stand-alone file just listing users. The two methods cannot be mixed:
+# if you configure users here and at the same time you activate the external
+# ACL file, the server will refuse to start.
+#
+# The format of the external ACL user file is exactly the same as the
+# format that is used inside redis.conf to describe users.
+#
+# aclfile /etc/redis/sentinel-users.acl
+
+# requirepass <password>
+#
+# You can configure Sentinel itself to require a password, however when doing
+# so Sentinel will try to authenticate with the same password to all the
+# other Sentinels. So you need to configure all your Sentinels in a given
+# group with the same "requirepass" password. Check the following documentation
+# for more info: https://redis.io/topics/sentinel
+#
+# IMPORTANT NOTE: starting with Redis 6.2 "requirepass" is a compatibility
+# layer on top of the ACL system. The option effect will be just setting
+# the password for the default user. Clients will still authenticate using
+# AUTH <password> as usually, or more explicitly with AUTH default <password>
+# if they follow the new protocol: both will work.
+#
+# New config files are advised to use separate authentication control for
+# incoming connections (via ACL), and for outgoing connections (via
+# sentinel-user and sentinel-pass)
+#
+# The requirepass is not compatible with aclfile option and the ACL LOAD
+# command, these will cause requirepass to be ignored.
+
+# sentinel sentinel-user <username>
+#
+# You can configure Sentinel to authenticate with other Sentinels with specific
+# user name.
+
+# sentinel sentinel-pass <password>
+#
+# The password for Sentinel to authenticate with other Sentinels. If sentinel-user
+# is not configured, Sentinel will use 'default' user with sentinel-pass to authenticate.
+
+# sentinel parallel-syncs <master-name> <numreplicas>
+#
+# How many replicas we can reconfigure to point to the new replica simultaneously
+# during the failover. Use a low number if you use the replicas to serve query
+# to avoid that all the replicas will be unreachable at about the same
+# time while performing the synchronization with the master.
+sentinel parallel-syncs mymaster 1
+
+# sentinel failover-timeout <master-name> <milliseconds>
+#
+# Specifies the failover timeout in milliseconds. It is used in many ways:
+#
+# - The time needed to re-start a failover after a previous failover was
+# already tried against the same master by a given Sentinel, is two
+# times the failover timeout.
+#
+# - The time needed for a replica replicating to a wrong master according
+# to a Sentinel current configuration, to be forced to replicate
+# with the right master, is exactly the failover timeout (counting since
+# the moment a Sentinel detected the misconfiguration).
+#
+# - The time needed to cancel a failover that is already in progress but
+# did not produced any configuration change (SLAVEOF NO ONE yet not
+# acknowledged by the promoted replica).
+#
+# - The maximum time a failover in progress waits for all the replicas to be
+# reconfigured as replicas of the new master. However even after this time
+# the replicas will be reconfigured by the Sentinels anyway, but not with
+# the exact parallel-syncs progression as specified.
+#
+# Default is 3 minutes.
+sentinel failover-timeout mymaster 180000
+
+# SCRIPTS EXECUTION
+#
+# sentinel notification-script and sentinel reconfig-script are used in order
+# to configure scripts that are called to notify the system administrator
+# or to reconfigure clients after a failover. The scripts are executed
+# with the following rules for error handling:
+#
+# If script exits with "1" the execution is retried later (up to a maximum
+# number of times currently set to 10).
+#
+# If script exits with "2" (or an higher value) the script execution is
+# not retried.
+#
+# If script terminates because it receives a signal the behavior is the same
+# as exit code 1.
+#
+# A script has a maximum running time of 60 seconds. After this limit is
+# reached the script is terminated with a SIGKILL and the execution retried.
+
+# NOTIFICATION SCRIPT
+#
+# sentinel notification-script <master-name> <script-path>
+#
+# Call the specified notification script for any sentinel event that is
+# generated in the WARNING level (for instance -sdown, -odown, and so forth).
+# This script should notify the system administrator via email, SMS, or any
+# other messaging system, that there is something wrong with the monitored
+# Redis systems.
+#
+# The script is called with just two arguments: the first is the event type
+# and the second the event description.
+#
+# The script must exist and be executable in order for sentinel to start if
+# this option is provided.
+#
+# Example:
+#
+# sentinel notification-script mymaster /var/redis/notify.sh
+
+# CLIENTS RECONFIGURATION SCRIPT
+#
+# sentinel client-reconfig-script <master-name> <script-path>
+#
+# When the master changed because of a failover a script can be called in
+# order to perform application-specific tasks to notify the clients that the
+# configuration has changed and the master is at a different address.
+#
+# The following arguments are passed to the script:
+#
+# <master-name> <role> <state> <from-ip> <from-port> <to-ip> <to-port>
+#
+# <state> is currently always "start"
+# <role> is either "leader" or "observer"
+#
+# The arguments from-ip, from-port, to-ip, to-port are used to communicate
+# the old address of the master and the new address of the elected replica
+# (now a master).
+#
+# This script should be resistant to multiple invocations.
+#
+# Example:
+#
+# sentinel client-reconfig-script mymaster /var/redis/reconfig.sh
+
+# SECURITY
+#
+# By default SENTINEL SET will not be able to change the notification-script
+# and client-reconfig-script at runtime. This avoids a trivial security issue
+# where clients can set the script to anything and trigger a failover in order
+# to get the program executed.
+
+sentinel deny-scripts-reconfig yes
+
+# REDIS COMMANDS RENAMING (DEPRECATED)
+#
+# WARNING: avoid using this option if possible, instead use ACLs.
+#
+# Sometimes the Redis server has certain commands, that are needed for Sentinel
+# to work correctly, renamed to unguessable strings. This is often the case
+# of CONFIG and SLAVEOF in the context of providers that provide Redis as
+# a service, and don't want the customers to reconfigure the instances outside
+# of the administration console.
+#
+# In such case it is possible to tell Sentinel to use different command names
+# instead of the normal ones. For example if the master "mymaster", and the
+# associated replicas, have "CONFIG" all renamed to "GUESSME", I could use:
+#
+# SENTINEL rename-command mymaster CONFIG GUESSME
+#
+# After such configuration is set, every time Sentinel would use CONFIG it will
+# use GUESSME instead. Note that there is no actual need to respect the command
+# case, so writing "config guessme" is the same in the example above.
+#
+# SENTINEL SET can also be used in order to perform this configuration at runtime.
+#
+# In order to set a command back to its original name (undo the renaming), it
+# is possible to just rename a command to itself:
+#
+# SENTINEL rename-command mymaster CONFIG CONFIG
+
+# HOSTNAMES SUPPORT
+#
+# Normally Sentinel uses only IP addresses and requires SENTINEL MONITOR
+# to specify an IP address. Also, it requires the Redis replica-announce-ip
+# keyword to specify only IP addresses.
+#
+# You may enable hostnames support by enabling resolve-hostnames. Note
+# that you must make sure your DNS is configured properly and that DNS
+# resolution does not introduce very long delays.
+#
+SENTINEL resolve-hostnames no
+
+# When resolve-hostnames is enabled, Sentinel still uses IP addresses
+# when exposing instances to users, configuration files, etc. If you want
+# to retain the hostnames when announced, enable announce-hostnames below.
+#
+SENTINEL announce-hostnames no
+
+# When master_reboot_down_after_period is set to 0, Sentinel does not fail over
+# when receiving a -LOADING response from a master. This was the only supported
+# behavior before version 7.0.
+#
+# Otherwise, Sentinel will use this value as the time (in ms) it is willing to
+# accept a -LOADING response after a master has been rebooted, before failing
+# over.
+
+SENTINEL master-reboot-down-after-period mymaster 0