今天在程序中，jedis put数据到redis过程中，“MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk”报错；

再查看Redis日志，看到有这样的错误提示“Can’t save in background: fork: Cannot allocate memory”，这个提示很明显"Fork进程时内存不够用了！"，但内存明明还有一个多G；

经网上查询，Redis在保存数据到硬盘时为了避免主进程假死，需要Fork一份主进程，然后在Fork进程内完成数据保存到硬盘的操作，如果主进程使用了4GB的内存，Fork子进程的时候需要额外的4GB，此时内存就不够了，Fork失败，进而数据保存硬盘也失败了。

解决如下：

执行命令 sysctl vm.overcommit_memory=1

/etc/sysctl.conf 文件添加

vm.overcommit_memory=1

Redis ＂MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk＂问题的更多相关文章

  1. Redis ＂MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk＂问题的解决

    异常详细信息 Exception in thread "main" redis.clients.jedis.exceptions.JedisDataException: MISCO ...

  2. Redis ＂MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk＂问题的解决(转)

    今天第二次遇到Redis “MISCONF Redis is configured to save RDB snapshots, but is currently not able to persis ...

  3. (error) MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk

    今天运行Redis时发生错误,错误信息如下: (error) MISCONF Redis is configured to save RDB snapshots, but is currently n ...

  4. (error) 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 for details about t

    运行redis过程中,突然报错如下: (error) MISCONF Redis is configured to save RDB snapshots, but is currently not a ...

  5. redis 不能持久化问题 MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk.

    转载自:http://www.cnblogs.com/anny-1980/p/4582674.html kombu.exceptions.OperationalError: MISCONF Redis ...

  6. 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 for details about the error

    今天购物车突然不能添加了,发现redis报错了,重启了一下好了,一会又报错了. 错误信息: MISCONF Redis is configured to save RDB snapshots, but ...

  7. redis 异常 MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk

    MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk. 解决方 ...

  8. redis 出现(error) 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 for details

    如果在ubuntu安装的redis含端口使用,但是某些时候常常出现 (error) MISCONF Redis is configured to save RDB snapshots, but is ...

  9. redis异常：(error) MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk.

    (error) MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on d ...

随机推荐

  1. lshw-查看系统硬件信息

    lshw是系统日常使用会比较常用到的命令,一般是用它来查看新硬件的信息. 跟觉man,lshw会读取的文件有: /usr/local/share/pci.ids /usr/share/pci.ids ...

  2. SSH框架：同一个工程之前可以正常运行，现在不能

    一个问题是:有一个CRIMS的项目,之前是可以运行成功的.(这个工作空间就只有这一个项目).但是不知道怎么了,现在运行起来就会出现错误. 配置什么的都没有去修改过,(工程坏了??) 不过有一个奇怪的问 ...

  3. 在windows 2012中安装sharepoint 2013时遇到问题的处理办法

    众所周知,sharepoint 2013是早于windows 2012的,所以在安装的时候,总会出现各种奇怪的问题,也就是所谓的一个个坑,为了减少大家掉到坑里的次数和排除故障的时间,我在这里记录下我曾 ...

  4. jquery ajax、get、post实例

    .post.$.get是一些简单的方法,如果要处理复杂的逻辑,还是需要用到jQuery.ajax() 一.$.ajax的一般格式 $.ajax({ type: 'POST', url: url , d ...

  5. homebrew osx下面最优秀的包管理工具

    官方网站:https://brew.sh/index_zh-cn 安装 /usr/bin/ruby -e "$(curl -fsSL https://raw.githubuserconten ...

  6. 查询清除SQL Server数据库备份还原历史记录

    曾经遇到过一个用户MSDB数据库非常大,让我帮忙查查是什么原因.使用sp_spaceused找出了所有表的数据大小,发现问题是SQL Server备份和还原历史表数据太大.用户经常会做日志备份,但是从 ...

  7. 多线程-AbstractQueuedSynchronizer（AQS）

    概述 从使用者的角度,AQS的功能可分为两类:独占功能和共享功能.它的子类中,要么实现并使用了它独占功能的API,要么使用了共享锁的功能,而不会同时使用两套API,即使是它的子类ReentrantRe ...

  8. Atitit.提升软件Web应用程序 app性能的方法原理 h5 js java c# php python android .net

    Atitit.提升软件Web应用程序 app性能的方法原理 h5 js java c# php python android .net 1. 提升单例有能力的1 2. 减少工作数量2 2.1. 减少距 ...

  9. Vivado Logic Analyzer的使用（二）

    本文基于Vivado 2014.2,阅读前请参考前文http://blog.chinaaet.com/detail/37264 之前的设计都是出发后直接捕获数据.其实,与chipscope类似,可以设 ...

  10. JAVA设计模式之 命令模式【Command Pattern】

    一.概述 命令模式能够将请求发送者和接收者全然解耦.发送者与接收者之间没有直接引用关系,发送请求的对象仅仅须要知道怎样发送请求,而不必知道怎样完毕请求.核心在于引入了命令类,通过命令类来减少发送者和接 ...