redis节点，始终有一个节点不能启动起来

1.修改了配置文件 protected-mode no，重启

修改了配置文件 protected-mode no，重启redis问题依然存在

2、查看/var/log/message的redis日志

Aug 21 07:40:33 redisMaster kernel: Out of memory: Kill process 31814 (redis-server) score 193 or sacrifice child
Aug 21 07:40:33 redisMaster kernel: Killed process 31814 (redis-server) total-vm:1675000kB, anon-rss:1537180kB, file-rss:0kB, shmem-rss:0kB

3、查看机器内存

              total        used        free      shared  buff/cache   available
Mem:           7552        7202         131           0         217         119

说明机器内存没有了，所以会杀死节点

4、升配置机器，重启redis，节点能够启动成功

cd /data/cluster/7001  && redis-server redis.conf
cd /data/cluster/7002  && redis-server redis.conf
cd /data/cluster/7003  && redis-server redis.conf
cd /data/cluster/7004  && redis-server redis.conf
cd /data/cluster/7005  && redis-server redis.conf
cd /data/cluster/7006  && redis-server redis.conf