Util.FSUtils: Waiting for dfs to exit safe mode
有好几次，启动Hadoop和HBase之后，执行jps命令，已经看到有HMaster的进程，
但是进入到HBase的shell，执行一个命令，会出现下面的错误：
ERROR: org.apache.hadoop.hbase.MasterNotRunningException: Retried 7 times
进入到logs目录查看master的日志：发现一直显示下面的内容：
2013-04-13 17:13:17,374 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting for dfs to exit safe mode...
2013-04-13 17:13:27,377 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting for dfs to exit safe mode...
2013-04-13 17:13:37,386 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting for dfs to exit safe mode...
2013-04-13 17:13:47,393 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting for dfs to exit safe mode...
2013-04-13 17:13:57,395 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting for dfs to exit safe mode...
2013-04-13 17:14:07,409 INFO org.apache.hadoop.hbase.util.FSUtils: Waiting for dfs to exit safe mode...
原来是Hadoop在刚启动的时候，还处在安全模式造成的。
[root@Hadoop-NN-01 hadoop-2.6.0-cdh5.6.0]$ bin/hadoop dfsadmin -safemode get
Safe mode is ON
可等Hadoop退出安全模式后再执行HBase命令，或者手动退出Hadoop的安全模式
[root@Hadoop-NN-01 hadoop-2.6.0-cdh5.6.0]$ bin/hadoop dfsadmin -safemode leave
Safe mode is OFF
现在再执行HBase的命令就没有问题了。
hadoop dfsadmin-safemode 命令参数说明：
enter - 进入安全模式
leave - 强制NameNode离开安全模式
get - 返回安全模式是否开启的信息
wait - 等待，一直到安全模式结束。
Util.FSUtils: Waiting for dfs to exit safe mode的更多相关文章
- hbase_异常_04_util.FSUtils: Waiting for dfs to exit safe mode...
一.异常现象 启动hbase的时,hbase的日志中可以发现: Waiting for dfs to exit safe mode... 然后就抛异常了 2018-03-22 17:00:28,994 ...
- Centos:Another app is currently holding the yum lock; waiting for it to exit...
Another app is currently holding the yum lock; waiting for it to exit... 另一个应用程序是:PackageKit 内存: 27 ...
- Another app is currently holding the yum lock; waiting for it to exit...
刚安装完虚拟机,用xshell连接上linux后,安装程序时一直出现这个信息Another app is currently holding the yum lock; waiting for it ...
- linux -小记（2）问题：yum 安装报错"Another app is currently holding the yum lock; waiting for it to exit... ...: yum Memory : 26 M RSS (868 MB VSZ) Started: Wed Oct 26 22:48:24 2016 - 0"
yum 安装报错 "Another app is currently holding the yum lock; waiting for it to exit... The other ap ...
- another app is currently holding the yum lock;waiting for it to exit解决
有时用yum升级一些文件时,会出现以下情况: another app is currently holding the yum lock;waiting for it to exit... 可 ...
- Another app is currently holding the yum lock; waiting for it to exit... 怎么解决
Another app is currently holding the yum lock; waiting for it to exit... 怎么解决 这个问题说明你的程序yum程序正在运行,必须 ...
- Another app is currently holding the yum lock; waiting for it to exit 解决方法
Another app is currently holding the yum lock; waiting for it to exit... The other application is: P ...
- yum安装提示Another app is currently holding the yum lock; waiting for it to exit...
在Linux系统中使用yum安装软件时,提示yum处于锁定状态 Another app is currently holding the yum lock; waiting for it to exi ...
- （转）yum提示Another app is currently holding the yum lock; waiting for it to exit...
文章转自 yum 下载东西突然卡主了,我直接ctrl+c退出,然后再次下载时候出现 Another app is currently holding the yum lock; waiting for ...
随机推荐
- ThinkPHP框架 【 AJAX方法返回 】 例子：简单添加一条数据 和 查询一个表里的数据
注:thinkphp使用ajax和之前使用ajax的方法一样,不同点在于之前的ajax中的url指向了一个页面,而thinkphp里面的url需要指向一个操作方法. 在模块控制器Controller文 ...
- PHP数组（数组正则表达式、数组、预定义数组）
正则表达式 1.替换 $s = "hello5world"; $s = preg_replace("/\d/","#",$s); echo ...
- db2 reorg(转）
DB2 reorg RUNSTATS: db2 connect to rmdb11 user rmadmin using rmadmin 对所有用户表执行runstats(reorgchk加updat ...
- log4j组件的用法（log4j1）
在实际的项目开发和维护中,日志是经常用到的一个内容.遇到问题的时候,经常需要通过日志去查出问题的所在并解决问题. 通常我们会用: System.out.println(xxx); 来打印运行中所需要的 ...
- 浅析原生js模仿addclass和removeclass
//判断有没有class hasClass(elements, cName) { return !!elements.className.match(new RegExp("(\\s|^)& ...
- stm32 硬件错误
进入该模式,程序死机. 一般来说都是内存错误 1. 数组越界,装入数据溢出, 2. 堆和栈设置不当,这里面硬件的堆和栈在汇编文件中,如果有freertos等,重点检查,任务堆栈使用情况,一般任务堆栈溢 ...
- Some untracked working tree files would be overwritten by checkout. Please move or remove them before you can checkout. View them
Some untracked working tree files would be overwritten by checkout. Please move or remove them befor ...
- 记录一下ionic canvas图片,还有canvas里面的图片跨域的问题
import { Component, Inject, forwardRef } from '@angular/core'; import { IonicPage, NavController, Na ...
- 2016年蓝桥杯省赛A组c++第3题(图论)
/* 有一个含有10个格子的图形,现用0~9填充,连续的数不能填充在相邻的格子中(包括对角线相邻). 现每个数只能填写一次,问有多少种填充方法? 0111 1111 1110 (1表示有格子,0表示没 ...
- LeetCode 693 Binary Number with Alternating Bits 解题报告
题目要求 Given a positive integer, check whether it has alternating bits: namely, if two adjacent bits w ...