centos7通过yum装完mysql,使用grep 'temporary password' /var/log/mysqld.log找不到root密码打开mysqld.log中根本没有temporary password 1.删除原来安装过的mysql残留的数据(这一步非常重要,问题就出在这)rm -rf /var/lib/mysql 2.重启mysqld服务systemctl restart mysqld 3.再去找临时密码grep 'temporary password' /var/log

[root@www]# ./bin/mysqld_safe --user=mysql&[1] 32710[root@www]# 121003 16:40:22 mysqld_safe Logging to '/var/log/mysqld.log'.121003 16:40:22 mysqld_safe Starting mysqld daemon with databases from /var/lib/mysql这些大多是权限的问题因为mysql数据库需要完整的权限.当时查看了下目录权限设置

[oot@cent65 bin]# service mysqld startStarting MySQL.2019-10-28T15:56:47.786960Z mysqld_safe error: log-error set to '/data/log/mysqld.log', however file don't exists. Create writable for user 'mysql'.The server quit without updating PID file (/data/

环境是CentOS6.5,先贴个错误代码: 这个问题解决了大半天,浪费了好多时间,不过也算是值了. 事故起因是因为突然断电,mysql server直接干掉了,也没有备用电源,重启了之后看日志tail -f /var/log/mysqld.log,刚开始报错: 错误信息 :ERROR 2002 (HY000): Can't connect to local MySQL server server through socket '/var/lib/mysql/mysql.sock'(111) 报错

鉴于很多童鞋反应,mysql5.7安装后出现无法启动,建立/var/run/mysqld 并赋权mysql用户解决了启动的问题,但是重启系统后又出现无法启动的问题,导致/var/run/mysqld 目录每次重启后都需要手动去创建并赋权mysql用户才能起到mysql,可以说,这是mysql5.7的一个小BUG,经过探索实践,现给出终极解决方案: 首先申明,修改my.cnf没有用. 之所以/var/run/mysqld 目录每次重启后都需要手动去创建,是因为/var/run/目录下建立文件夹是在

msql启动报错,启动不了. 进入mysql日志默认的路径为 /var/log/mysqld.log 查看日志,发现报错信息如下: can't create/write to file 'var/run/mysqld/mysqld.pid 解决办法: 将 /var/run/mysqld/权限赋给mysql 执行以下命令即可: chown -R mysql /var/run/mysqldchgrp -R mysql /var/run/mysqld--------------------- 作者:冬

Turning logging off for the whole duration of the MySQL server process. File '/var/log/slow_query.log' not found (Errcode: 13 - Permission denied) [ERROR] Could not open /var/log/slow_query.log for logging (error 13). Turning logging off for the whol

如下:从10.12.8.165 FTP 到 10.1.3.34,报failed to open vsftpd log[a4_csbdc@localhost ~]$ ftp  10.1.3.34Connected to 10.1.3.34.500 OOPS: failed to open vsftpd log file:/var/log/vsftpd.log 原因及解决 :原来是10.1.3.34的空间不够,删除部分10.1.3.34上/var/log/下的部分日志如vsftpd.log.1.vs

/var/log/boot.log — 记录系统启动时的日志信息,如果系统启动之后有什么异常可以查看该文件信息 [root@localhost ~]# cat /var/log/boot.log # 要用cat查看不要用vim @ Welcome to CentOS Starting udev: G [ OK ] Setting hostname VM_215_87_centos: [ OK ] Setting up Logical Volume Management: No volume gr

问题:在从 https://c.163.com/hub#/m/repository/?repoId=3093 下载镜像 docker pull hub.c.163.com/library/jenkins:latest后,启动容器时,报错: [admin@3-29 ~]$ sudo docker run --name myjenkins-slave1 -p 8080:8080 -v /var/lib/jenkins:/var/jenkins_home hub.c.163.com/library/j

docker 运行后, 执行docker logs -f myjenkins时报错: touch: cannot touch ‘/var/jenkins_home/copy_reference_file.log’: Permission denied Can not write to /var/jenkins_home/copy_reference_file.log. Wrong volume permissions? 需要修改下目录权限, 因为当映射本地数据卷时,/home/docker/je

docker 运行后, 执行docker logs -f myjenkins时报错:touch: cannot touch '/var/jenkins_home/copy_reference_file.log': Permission denied Can not write to /var/jenkins_home/copy_reference_file.log. Wrong volume permissions? 需要修改下目录权限, 因为当映射本地数据卷时,/home/docker/jen

安装上mysql后,报 Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock',试了网上的方法都没有用,于是打开/etc/my.cnf查看. 看到这么一段:   # The MySQL server  26 [mysqld]  27 port            = 3306  28 socket          = /tmp/mysql.sock  29 skip-external-l

在使用 deamon@deamon-H55M-S2:/usr/bin$ mysqladmin -u root -p shutdown 关闭MySQL之后试图通过: deamon@deamon-H55M-S2:/usr/bin$ mysqld_safe & 来重启服务器,发现重启失败,显示权限不够: /usr/bin/mysqld_safe: 548: /usr/bin/mysqld_safe: cannot create /var/lib/mysql/mysqld_safe.pid: Permi

root@PC-RENGUOQIANG:/usr/sbin# /etc/init.d/mysql start * Starting MySQL database server mysqld [ OK ] root@PC-RENGUOQIANG:/usr/sbin# ps -ef | grep mysql mysql : ? :: /bin/sh /usr/bin/mysqld_safe mysql : ? :: /usr/sbin/mysqld --basedir=/usr --datadir=

This is about resetting the MySQL 5.7 root password in Ubuntu 16.04 LTS You probably tried something like this: sudo service mysql stop mysqld_safe --skip-grant-tables & And then got something like this (stangely, exists is misspelled in the output):

Log4j报错: log4j:ERROR Failed to rename [/log/xxx.log] to [/log/xxx.log.2016-11-23.log] google了一下发现是个bug: https://bz.apache.org/bugzilla/show_bug.cgi?id=29726 I checked myself, and found it was solved only in 1.3 for DRFA. For RFA, it has been solved i

  Android.util.Log常用的方法有以下5个:Log.v() Log.d() Log.i() Log.w() 以及 Log.e() .根据首字母对应VERBOSE,DEBUG,INFO, WARN,ERROR.   1.Log.v 的调试颜色为黑色的,任何消息都会输出,这里的v代表verbose啰嗦的意思,平时使用就是Log.v("","");   2.Log.d的输出颜色是蓝色的,仅输出debug调试的意思,但他会输出上层的信息,过滤起来可以通过DDM

OperationalError: (2002, “Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)”) python MySQLdb这个模块是独立的,有自己独立的socket,解决的方法就是找出mysql配置里的socket的地址(比如socket=/tmp/mysql.sock),然后做个软连接 ln -s /tmp/mysql.sock  /var/run/mysqld/

-Xloggc:log/gc.log指定GC log的位置,以文件输出帮助开发人员分析问题