Redis 容器与配置(5)

franket

发布于 2021-10-20 09:56:41

2420

发布于 2021-10-20 09:56:41

后面是与默认配置的差异，这里稍微解释一下

Option	Comment
daemonize no	不以后台服务的形式运行
timeout 1800	将超时时间限定为半小时，默认是不限的
logfile "/data/redis6379.log"	指定日志的路径
databases 50	将数据库设为50个
dir /data/	指定存储目录
dbfilename dump6379.rdb	指定数据文件名
appendfilename "appendonly6379.aof"	指定append文件名

Note: 为什么普通情况下使用redis都是开启后台服务模式，而这里要使用前台模式呢，那是因为，容器化后，必须终结于一个前台进程，否则容器就直接退出了，这涉及容器交互模式运行和后台运行的一些特性

挂载本地卷到容器

[root@h104 x]# pwd
/tmp/x
[root@h104 x]# ls
redis6379.conf
[root@h104 x]# docker run --name myredis -d -v /tmp/x:/data redis  redis-server /data/redis6379.conf 
a1a4cfe7e7498827aeeb770744a9443a89212017282b41233cb3c4258a9a0b61
[root@h104 x]# docker ps -l
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS               NAMES
a1a4cfe7e749        redis               "docker-entrypoint.sh"   12 seconds ago      Up 11 seconds       6379/tcp            myredis
[root@h104 x]#

这里对 docker run --name myredis -d -v /tmp/x:/data redis redis-server /data/redis6379.conf 进行一下解析

Option	Comment
docker run	调用 docker 命令的 run 子命令
--name myredis	给这个容器取名为 myredis
-d	后台模式运行
-v /tmp/x:/data	将本地的 /tmp/x 目录挂载到容器中的 /data 目录
redis	使用redis镜像
redis-server /data/redis6379.conf	使用指定的配置初始化并启动redis服务

查看日志

因为本地目录挂载到了容器中，那么日志根据映射就直接记录到了本地

[root@h104 x]# pwd
/tmp/x
[root@h104 x]# ls
redis6379.conf  redis6379.log
[root@h104 x]# cat /tmp/x/redis6379.log 
                _._                                                  
           _.-``__ ''-._                                             
      _.-``    `.  `_.  ''-._           Redis 3.0.7 (00000000/0) 64 bit
  .-`` .-```.  ```\/    _.,_ ''-._                                   
 (    '      ,       .-`  | `,    )     Running in standalone mode
 |`-._`-...-` __...-.``-._|'` _.-'|     Port: 6379
 |    `-._   `._    /     _.-'    |     PID: 1
  `-._    `-._  `-./  _.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |           http://redis.io        
  `-._    `-._`-.__.-'_.-'    _.-'                                   
 |`-._`-._    `-.__.-'    _.-'_.-'|                                  
 |    `-._`-._        _.-'_.-'    |                                  
  `-._    `-._`-.__.-'_.-'    _.-'                                   
      `-._    `-.__.-'    _.-'                                       
          `-._        _.-'                                           
              `-.__.-'                                               

1:M 28 Apr 14:47:24.523 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128.
1:M 28 Apr 14:47:24.523 # Server started, Redis version 3.0.7
1:M 28 Apr 14:47:24.523 # 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.
1:M 28 Apr 14:47:24.524 # WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix this issue run the command 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain the setting after a reboot. Redis must be restarted after THP is disabled.
1:M 28 Apr 14:47:24.524 * The server is now ready to accept connections on port 6379
[root@h104 x]#

本文系转载，前往查看

如有侵权，请联系 cloudcommunity@tencent.com 删除。

云数据库 Redis