MySQL啟動報錯:Starting MySQL.. ERROR! The server quit without updating PID file的問題分析和解決
問題
[root@centos74 ~]# service mysqld start Starting MySQL.. ERROR! The server quit without updating PID file (/usr/local/mysql/data/mysqld.pid).
分析解決
1、 可能已經(jīng)存在 mysqld 進程.
[root@centos74 ~]# ps -ef | grep mysqld [root@centos74 ~]# pkill -9 mysqld # 查看是否有這個進程,如果有殺死掉
2、數(shù)據(jù)目錄mysql用戶是否有權(quán)限.
[root@centos74 ~]# chown -R mysql.mysql /usr/local/mysql/data
3、機器上面還有上次安裝mysql的殘留.
[root@centos74 ~]# find / -name mysql-binlog* # 查看mysql的二進制目錄,看是否存在mysqlbinlog.index,有的話刪掉
4、mysql 在啟動的時候會去尋找默認的 配置文件 /etc/my.cnf 這個目錄下的 datadir 要指定數(shù)據(jù)目錄.
# 如果沒有,那么在 my.cnf 里面添加 datadir=/usr/local/mysql/data
5、skip-federated字段問題.
# 檢查一下/etc/my.cnf文件中有沒有沒被注釋掉的skip-federated字段,如果有就立即注釋掉.
6、錯誤日志目錄不存在.
# 賦予 mysql 所有者權(quán)限 chmod chown .
7、防火墻原因.
# centos 會默認開啟selinux . [root@centos74 ~]# vim /etc/selinux/config SELINUX=disabled
8、查看配置文件/usr/local/mysql/my.cnf里有沒有innodb_buffer_pool_size
# innodb_buffer_pool_size:主要作用是緩存innodb表的索引,數(shù)據(jù),插入數(shù)據(jù)時的緩沖. # 默認值:128M; # 專用mysql服務(wù)器設(shè)置此值的大?。?系統(tǒng)內(nèi)存的70%-80%最佳. # 如果你的系統(tǒng)內(nèi)存不大,查看這個參數(shù),把它的值設(shè)置小一點.
10、關(guān)注 mysql 的報錯日志.
[root@centos74 /]# cd /usr/local/mysql/ [root@centos74 mysql]# cat mysql.err 190718 8:31:56 [Note] Plugin 'FEDERATED' is disabled. mysqld: Table 'mysql.plugin' doesn't exist 190718 8:31:56 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 190718 8:31:56 InnoDB: The InnoDB memory heap is disabled 190718 8:31:56 InnoDB: Mutexes and rw_locks use GCC atomic builtins 190718 8:31:56 InnoDB: Compressed tables use zlib 1.2.11 190718 8:31:56 InnoDB: Using Linux native AIO 190718 8:31:56 InnoDB: Initializing buffer pool, size = 128.0M 190718 8:31:56 InnoDB: Completed initialization of buffer pool InnoDB: The first specified data file ./ibdata1 did not exist: InnoDB: a new database to be created! 190718 8:31:56 InnoDB: Setting file ./ibdata1 size to 10 MB InnoDB: Database physically writes the file full: wait... 190718 8:31:56 InnoDB: Log file ./ib_logfile0 did not exist: new to be created InnoDB: Setting log file ./ib_logfile0 size to 5 MB InnoDB: Database physically writes the file full: wait... 190718 8:31:56 InnoDB: Log file ./ib_logfile1 did not exist: new to be created InnoDB: Setting log file ./ib_logfile1 size to 5 MB InnoDB: Database physically writes the file full: wait... InnoDB: Doublewrite buffer not found: creating new InnoDB: Doublewrite buffer created InnoDB: 127 rollback segment(s) active. InnoDB: Creating foreign key constraint system tables InnoDB: Foreign key constraint system tables created 190718 8:31:56 InnoDB: Waiting for the background threads to start 190718 8:31:57 InnoDB: 5.5.62 started; log sequence number 0 190718 8:31:57 [ERROR] mysqld: unknown option '--initialize' 190718 8:31:57 [ERROR] Aborting 190718 8:31:57 InnoDB: Starting shutdown... 190718 8:31:58 InnoDB: Shutdown completed; log sequence number 1595675 190718 8:31:58 [Note] mysqld: Shutdown complete 190718 8:32:07 [Note] Plugin 'FEDERATED' is disabled. /usr/local/mysql/bin/mysqld: Table 'mysql.plugin' doesn't exist 190718 8:32:07 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 190718 8:32:07 InnoDB: The InnoDB memory heap is disabled 190718 8:32:07 InnoDB: Mutexes and rw_locks use GCC atomic builtins 190718 8:32:07 InnoDB: Compressed tables use zlib 1.2.11 190718 8:32:07 InnoDB: Using Linux native AIO 190718 8:32:07 InnoDB: Initializing buffer pool, size = 128.0M 190718 8:32:07 InnoDB: Completed initialization of buffer pool 190718 8:32:07 InnoDB: highest supported file format is Barracuda. 190718 8:32:07 InnoDB: Waiting for the background threads to start 190718 8:32:08 InnoDB: 5.5.62 started; log sequence number 1595675 190718 8:32:08 [Note] Server hostname (bind-address): '0.0.0.0'; port: 3306 190718 8:32:08 [Note] - '0.0.0.0' resolves to '0.0.0.0'; 190718 8:32:08 [Note] Server socket created on IP: '0.0.0.0'. 190718 8:32:08 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.host' doesn't exist 190718 8:33:17 [Note] Plugin 'FEDERATED' is disabled. /usr/local/mysql/bin/mysqld: Table 'mysql.plugin' doesn't exist 190718 8:33:17 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 190718 8:33:17 InnoDB: The InnoDB memory heap is disabled 190718 8:33:17 InnoDB: Mutexes and rw_locks use GCC atomic builtins 190718 8:33:17 InnoDB: Compressed tables use zlib 1.2.11 190718 8:33:17 InnoDB: Using Linux native AIO 190718 8:33:17 InnoDB: Initializing buffer pool, size = 128.0M 190718 8:33:17 InnoDB: Completed initialization of buffer pool 190718 8:33:17 InnoDB: highest supported file format is Barracuda. 190718 8:33:17 InnoDB: Waiting for the background threads to start 190718 8:33:18 InnoDB: 5.5.62 started; log sequence number 1595675 190718 8:33:18 [Note] Server hostname (bind-address): '0.0.0.0'; port: 3306 190718 8:33:18 [Note] - '0.0.0.0' resolves to '0.0.0.0'; 190718 8:33:18 [Note] Server socket created on IP: '0.0.0.0'. 190718 8:33:18 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.host' doesn't exist 190718 8:36:58 [Note] Plugin 'FEDERATED' is disabled. /usr/local/mysql/bin/mysqld: Table 'mysql.plugin' doesn't exist 190718 8:36:58 [ERROR] Can't open the mysql.plugin table. Please run mysql_upgrade to create it. 190718 8:36:58 InnoDB: The InnoDB memory heap is disabled 190718 8:36:58 InnoDB: Mutexes and rw_locks use GCC atomic builtins 190718 8:36:58 InnoDB: Compressed tables use zlib 1.2.11 190718 8:36:58 InnoDB: Using Linux native AIO 190718 8:36:58 InnoDB: Initializing buffer pool, size = 128.0M 190718 8:36:58 InnoDB: Completed initialization of buffer pool 190718 8:36:58 InnoDB: highest supported file format is Barracuda. 190718 8:36:58 InnoDB: Waiting for the background threads to start 190718 8:36:59 InnoDB: 5.5.62 started; log sequence number 1595675 190718 8:36:59 [Note] Server hostname (bind-address): '0.0.0.0'; port: 3306 190718 8:36:59 [Note] - '0.0.0.0' resolves to '0.0.0.0'; 190718 8:36:59 [Note] Server socket created on IP: '0.0.0.0'. 190718 8:36:59 [ERROR] Fatal error: Can't open and lock privilege tables: Table 'mysql.host' doesn't exist
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