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. Simple Factory (简单工厂模式)

    简单工厂模式不是23种设计模式之一,简单工厂模式属于创建型模式, 又叫做静态工厂方法(Static Factory Method) 简单工厂模式是工厂模式家族中最简单实用的模式,可以理解为是不同工厂模 ...

  2. java数据库操作：JDBC的操作

    1,JDBC注意操作类及接口: 数据库操作过程: 1)打开数据库服务 2)连接数据库:一般都要输入用户名,密码, 3)操作数据库:创建表:查询表,更新,记录. 4)关闭数据库. 1,DriverMan ...

  3. Debian9.3安装NW360无线网卡驱动

    最近想把家里的一台老旧台式机利用起来,打算安装Debian9.3,下载ISO,用PowerISO写入到U盘,然后开始安装,过程基本顺利. 就是中间提示缺少“rtl_nic/rtl8105e-1.fw” ...

  4. tar 命令详解 / xz 命令

    ]# tar [-cxtzjvfpPN] 文件与目录 ....参数:-c :建立一个压缩文件的参数指令(create 的意思):-x :解开一个压缩文件的参数指令!-t :查看 tarfile 里面的 ...

  5. 使用DotNetZip压缩与解压缩

    下载地址:http://dotnetzip.codeplex.com/ 解压后找到\\DotNetZipLib-DevKit-v1.9\zip-v1.9\Release下的Ionic.Zip.dll文 ...

  6. C#指南，重温基础，展望远方！（3）类型和变量

    C# 有两种类型:值类型和引用类型. 值类型的变量直接包含数据,而引用类型的变量则存储对数据(称为“对象”)的引用.对于引用类型,两个变量可以引用同一对象:因此,对一个变量执行的运算可能会影响另一个变 ...

  7. EMQ 学习---订阅$SYS主题，捕获客户端上下线消息

    acl.config文件定义了可订阅$SYS主题的权限. {allow, {user, "dashboard"}, subscribe, ["$SYS/#"]} ...

  8. 【HDOJ 5379】 Mahjong tree

    [HDOJ 5379] Mahjong tree 往一颗树上标号 要求同一父亲节点的节点们标号连续 同一子树的节点们标号连续 问一共同拥有几种标法 画了一画 发现标号有二叉树的感觉 初始标号1~n 根 ...

  9. Fiddler设置代理抓手机包

    启动Fiddler,打开菜单栏中的 Tools > Fiddler Options,打开“Fiddler Options”对话框. 在Fiddler Options”对话框切换到“Connect ...

  10. Springboot接收参数

    接收参数有三个方法. 1.接收id的方法: @RestController public class ControllerTest { //在这里读取配置文件 @Autowired private T ...