昨天晚上需要停电，把办公区的PC服务器进行了关机。今早启动，有些服务起不来，一看日志，原来是redis运行异常。

查看日志，报告内存错误。

*** Preparing to test memory region 7fe9b524c000 (4096 bytes)
.O.O.E.E.E.E.E.E.E.E.E.E.E.E.E.E.E.E
!!! MEMORY ERROR DETECTED! Check your memory ASAP !!!

=== REDIS BUG REPORT END. Make sure to include from START to END. ===

       Please report the crash by opening an issue on github:

           http://github.com/redis/redis/issues

  If a Redis module was involved, please open in the module's repo instead.

  Suspect RAM error? Use redis-server --test-memory to verify it.

  Some other issues could be detected by redis-server --check-system

使用命令redis-server --test-memory 4096

修了半天没修完。

算了，re do cluster。

./create-cluster start
./create-cluster create