Redis报错Can't save in background: fork: Cannot allocate memory及类似问题的处理方法

【Redis报错Can't save in background: fork: Cannot allocate memory及类似问题的处理方法】的更多相关文章

Redis报错Can't save in background: fork: Cannot allocate memory及类似问题的处理方法

问题的发现及解决过程: 1.Redis主从复制(一主一从)环境在客户端用命令查看主从状态在slave上输入命令显示如下: 在master上输入命令显示如下: 从显示可以看出主从关系出现问题,然后查看slave的redis.log有如下报错: 以为是IP及端口问题,经检查后发现非此问题.于是在网上查看一些别人的解决方法,但试过后都无效.于是查看master的redis.log有如下报错: 说明内存不足,无法为fork子进程分配内存,这就是主从出现问题的原因. 解决方法: 在master上的操作:…

redis 写磁盘出错 Can’t save in background: fork: Cannot allocate memory (转)

查看 Redis 日志发现系统在频繁报错: [26641] 18 Dec 04:02:14 * 1 changes in 900 seconds. Saving… [26641] 18 Dec 04:02:14 # Can’t save in background: fork: Cannot allocate memory 在小内存的进程上做一个fork,不需要太多资源,但当这个进程的内存空间以G为单位时,fork就成为一件很恐怖的操作.何况在16G内存的主机上fork 14G内存的进程呢…

redis : Can't save in background: fork: Cannot allocate memory

redis : Can't save in background: fork: Cannot allocate memory JAVA程序报错信息: MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk. Commands that may modify the data set are disabled. Please check Redis logs fo…

mysql报错mmap(137428992 bytes) failed; errno 12,Cannot allocate memory for the buffer pool

mysql以`systemctl start mysqld.service`的方式启动一段时间后发现突然无法启动,尝试重新启动也不能解决问题,排查问题时,先后通过`systemctl status mysqld.service`和`journalctl -xe` 命令查看问题,无所得.然后查看`/var/log/mysqld.log`发现日志内报错信息如下: 2019-02-07T00:33:21.731341Z 0 [Note] InnoDB: Initializing buffer pool…

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