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112 lines
4.2 KiB
112 lines
4.2 KiB
#!/bin/bash
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exit 0
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# Set up Redis
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apt-get install -t stretch-backports redis redis-sentinel
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# XXX
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# probably IPv6 ?
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Setting up redis-sentinel (5:4.0.10-1~bpo9+1) ...
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Created symlink /etc/systemd/system/sentinel.service → /lib/systemd/system/redis-sentinel.service.
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Created symlink /etc/systemd/system/multi-user.target.wants/redis-sentinel.service → /lib/systemd/system/redis-sentinel.service.
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Setting up redis-server (5:4.0.10-1~bpo9+1) ...
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Job for redis-server.service failed because of unavailable resources or another system error.
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See "systemctl status redis-server.service" and "journalctl -xe" for details.
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invoke-rc.d: initscript redis-server, action "start" failed.
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● redis-server.service - Advanced key-value store
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Loaded: loaded (/lib/systemd/system/redis-server.service; disabled; vendor preset: enabled)
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Active: activating (auto-restart) (Result: resources) since Sat 2018-07-14 13:50:33 MDT; 6ms ago
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Docs: http://redis.io/documentation,
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man:redis-server(1)
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Process: 1018 ExecStart=/usr/bin/redis-server /etc/redis/redis.conf (code=exited, status=0/SUCCESS)
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Jul 14 13:50:33 redis3 systemd[1]: Failed to start Advanced key-value store.
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Jul 14 13:50:33 redis3 systemd[1]: redis-server.service: Unit entered faile…ate.
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Jul 14 13:50:33 redis3 systemd[1]: redis-server.service: Failed with result…es
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Hint: Some lines were ellipsized, use -l to show in full.
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dpkg: error processing package redis-server (--configure):
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subprocess installed post-installation script returned error exit status 1
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dpkg: dependency problems prevent configuration of redis:
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redis depends on redis-server (<< 5:4.0.10-1~bpo9+1.1~); however:
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Package redis-server is not configured yet.
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redis depends on redis-server (>= 5:4.0.10-1~bpo9+1); however:
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Package redis-server is not configured yet.
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dpkg: error processing package redis (--configure):
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dependency problems - leaving unconfigured
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Processing triggers for systemd (232-25+deb9u4) ...
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Errors were encountered while processing:
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redis-server
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redis
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E: Sub-process /usr/bin/dpkg returned an error code (1)
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# XXX
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cd /etc ; git add . ; git commit -a -m "Install redis"
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vim /etc/redis/redis.conf
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# Disable IPv6
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-bind 127.0.0.1 ::1
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+bind 127.0.0.1
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# Set up firewall:
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# Redis Access Ports
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-A INPUT -p tcp --dport 6379 -j ACCEPT
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-A INPUT -p tcp --dport 16379 -j ACCEPT
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# Sentinel
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-A INPUT -p tcp --dport 26379 -j ACCEPT
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# Cluster
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-A INPUT -p tcp --dport 30001 -j ACCEPT
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cd /etc ; git add . ; git commit -a -m "Setup firewall for redis"
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# Change /etc/redis/redis.conf like this (using appropriate IP/name):
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bind 10.62.1.41
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cluster-enabled yes
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cluster-config-file redis1.conf
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cluster-node-timeout 15000
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cluster-slave-validity-factor 0
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cluster-migration-barrier 1
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cluster-require-full-coverage no
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# Change /etc/redis/sentinel.conf like this (using appropriate IP):
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bind 10.62.1.41
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protected-mode no
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sentinel monitor mymaster 10.62.1.41 6379 2
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cd /etc ; git add . ; git commit -a -m "Configure redis cluster"
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# Install ruby deps for cluster creation script:
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apt install ruby
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gem install redis
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cd /etc ; git add . ; git commit -a -m "Install ruby"
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# XXX create cluster, run on one node, redis1:
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/usr/share/doc/redis-tools/examples/redis-trib.rb create --replicas 1 10.62.1.41:6379 10.62.1.42:6379 \
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10.62.1.43:6379 10.62.1.44:6379 10.62.1.45:6379 10.62.1.46:6379
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# If creation fails with:
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[ERR] Node 10.62.1.41:6379 is not empty. Either the node already knows other nodes (check with CLUSTER NODES) or contains some key in database 0.
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# Run:
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systemctl stop redis-sentinel
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systemctl stop redis-server
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rm /var/lib/redis/dump.rdb
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rm /var/lib/redis/redis*.conf
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systemctl start redis-server
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systemctl start redis-sentinel
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# flushdb if necessary
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############ System tweaks ######################
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# XXX set in sysctl.conf
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echo never > /sys/kernel/mm/transparent_hugepage/enabled
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475:M 18 Jul 20:32:45.616 # WARNING overcommit_memory is set to 0! Background save may fail under low memory condition. To fix this issue add 'vm.overcommit_memory = 1' to /etc/sysctl.conf and then reboot or run the command 'sysctl vm.overcommit_memory=1' for this to take effect.
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475:M 18 Jul 20:32:45.616 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
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