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- 使用中发现有redis-server停止后未重启的情况
- redis本身自带daemon，可查看redis自身配置文件：
################################ GENERAL #####################################
# By default Redis does not run as a daemon. Use 'yes' if you need it.
# Note that Redis will write a pid file in /var/run/redis.pid when daemonized.
daemonize yes
1.使用中发现redis挂掉后并没有自动重启，自身守护未起作用；
2.在未将redis配置的守护开关（daemonize yes）关闭的情况下，利用supervisor创建对redis的守护时，会引起冲突，可查看supervisor日志发现： tail -f -n 200 /var/log/supervisor/supervisord.log
2017-05-27 15:36:30,258 INFO gave up:
redis-server entered FATAL state, too many start retries too quickly
2017-05-27 15:40:30,170 INFO spawned: 'redis-server' with pid 48565
2017-05-27 15:40:30,179 INFO exited: redis-server (exit status 0; not expected)
2017-05-27 15:40:31,550 INFO spawned: 'redis-server' with pid 48573
2017-05-27 15:40:31,557 INFO exited: redis-server (exit status 0; not expected)
2017-05-27 15:40:34,431 INFO spawned: 'redis-server' with pid 48589
2017-05-27 15:40:34,438 INFO exited: redis-server (exit status 0; not expected)
2017-05-27 15:40:37,443 INFO spawned: 'redis-server' with pid 48591
2017-05-27 15:40:37,450 INFO exited: redis-server (exit status 0; not expected)
2017-05-27 15:40:38,451 INFO gave up: redis-server entered FATAL state, too many start retries too quickly
这是由于supervisor和redis自身守护冲突引起。
3.修改redis配置中的
daemonize yes为
no,关闭自身守护，改用supervisor执行守护；
4.kill正在后台运行的redis-server；
5.supervisorctl update ;
6.supervisorctl start redis-server;
7.相关链接：
http://www.cnblogs.com/yjf512/archive/2012/03/05/2380496.html
http://blog.csdn.net/win_turn/article/details/60466562
另：在用supervisor启动redis前需要先kill掉redis的进程，否则启动失败。