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Mysql:TheserverquitwithoutupdatingPIDfile(/eipdb1/mysql/data/EIPDB1.pid).

环境:
MySQL主从,一台主机,一台备机。都是虚拟机。
备机仅仅用来备份,不用于业务。
关闭主机mysql服务,关闭主机系统,加内存。、
备机不变。


开启主机。
内存加好。
EIPDB1:~ # free -m
total used free shared buffers cached
Mem: 48274 2509 45764 0 19 378
-/+ buffers/cache: 2111 46162
Swap: 10236 0 10236
开启mysql服务报错。
EIPDB1:~ # mysqld service status
171016 23:57:43 [ERROR] Fatal error: Please read "Security" section of the manual to find out how to run mysqld as root!

171016 23:57:43 [ERROR] Aborting

171016 23:57:43 [Note] mysqld: Shutdown complete

EIPDB1:~ # service mysqld status
MySQL is running but PID file could not be found failed
EIPDB1:~ # service mysqld start
Starting MySQL.....................................................................................................The server quit without updating PID file (/eipdb1/mysql/data/EIPDB1.pid).

解决:
先查看了下,空间充足,没问题。
EIPDB1:/usr/local # df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 40G 9.1G 29G 25% /
devtmpfs 24G 356K 24G 1% /dev
tmpfs 24G 100K 24G 1% /dev/shm
/dev/sda1 98M 75M 19M 80% /boot
/dev/sdb1 490G 26G 465G 6% /eipdb1

可能是mysqld进程卡死,杀掉进程。
EIPDB1:~ # ps aux | grep mysql
root 3442 0.0 0.0 11292 1576 ? S Oct16 0:00 /bin/sh /eipdb1/mysql/bin/mysqld_safe --datadir=/eipdb1/mysql/data --pid-file=/eipdb1/mysql/data/EIPDB1.pid
mysql 4034 4.2 3.1 5907700 1538808 ? Sl Oct16 1:12 /eipdb1/mysql/bin/mysqld --basedir=/eipdb1/mysql --datadir=/eipdb1/mysql/data --plugin-dir=/eipdb1/mysql/lib/plugin --user=mysql --log-error=/eipdb1/mysql/data/EIPDB1.err --pid-file=/eipdb1/mysql/data/EIPDB1.pid --socket=/tmp/mysql.sock --port=3306
root 5588 0.0 0.0 5704 800 pts/0 S+ 00:22 0:00 grep mysql

EIPDB1:~ # kill -9 3442
EIPDB1:/usr/local # kill -9 4034

重新启动mysql服务:
EIPDB1:/usr/local # service mysqld start
Starting MySQL... done
EIPDB1:/usr/local # service mysqld status
MySQL running (6322) done
EIPDB1:/usr/local # ps aux | grep mysql
root 5733 0.0 0.0 11504 1596 pts/0 S 00:30 0:00 /bin/sh /eipdb1/mysql/bin/mysqld_safe --datadir=/eipdb1/mysql/data --pid-file=/eipdb1/mysql/data/EIPDB1.pid
mysql 6322 1.0 2.1 5839204 1065996 pts/0 Sl 00:30 0:01 /eipdb1/mysql/bin/mysqld --basedir=/eipdb1/mysql --datadir=/eipdb1/mysql/data --plugin-dir=/eipdb1/mysql/lib/plugin --user=mysql --log-error=/eipdb1/mysql/data/EIPDB1.err --pid-file=/eipdb1/mysql/data/EIPDB1.pid --socket=/tmp/mysql.sock --port=3306
root 6398 0.0 0.0 5700 800 pts/0 S+ 00:32 0:00 grep mysql

备库同步正常:
mysql> show slave status \G;
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 10.0.2.206
Master_User: slave_user
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: master-binlog.000062
Read_Master_Log_Pos: 44601
Relay_Log_File: eipdb2-relay-bin.000166
Relay_Log_Pos: 44751
Relay_Master_Log_File: master-binlog.000062
Slave_IO_Running: Yes
Slave_SQL_Running: Yes

完成。


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