0034-CM啟動報InnoDB engine not found分析
阿新 • • 發佈：2018-11-23
nts sep 幹貨 fault tps engines restart 微信公眾 源碼
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1.問題描述
cloudera-scm-server服務啟動失敗，日誌報錯如下：
2017-09-10 10:23:47,267 ERROR main:com.cloudera.enterprise.dbutil.DbUtil: InnoDB engine not found. Show engines reported: [MRG_MYISAM, CSV, MyISAM, MEMORY] 2017-09-10 10:23:47,268 ERROR main:com.cloudera.server.cmf.bootstrap.EntityManagerFactoryBean: InnoDb engine isn‘t present or enabled. SCM requires InnoDb MySQL db engine.
2.問題復現
測試環為CDH5.12.1，以下為復現步驟。
- 將/tmp目錄修改為755權限
[root@ip-172-31-6-148 /]# chmod 755 tmp/
[root@ip-172-31-6-148 /]# ll
total 116
drwxr-xr-x. 231 root root 20480 Sep 10 15:48 tmp
[root@ip-172-31-6-148 /]# 
2.重啟mysql服務
[root@ip-172-31-6-148 /]# service mysqld restart Stopping mysqld: [ OK ] Starting mysqld: [ OK ] [root@ip-172-31-6-148 /]#
3.啟動cloudera-scm-server服務
[root@ip-172-31-6-148 /]# service cloudera-scm-server restart
Stopping cloudera-scm-server: [ OK ]
Starting cloudera-scm-server: [ OK ]
[root@ip-172-31-6-148 /]#4.查看啟動日誌報錯如問題描述一致
3.解決方法
將/tmp目錄權限修改為777，重啟mysql和cloudera-scm-server服務
- 修改/tmp目錄權限為777
[root@ip-172-31-6-148 /]# chmod 777 tmp/
[root@ip-172-31-6-148 /]# ll
total 116
drwxrwxrwx. 231 root root 20480 Sep 10 15:48 tmp
[root@ip-172-31-6-148 /]# 
2.重啟msyql服務
[root@ip-172-31-6-148 /]# service mysqld restart
Stopping mysqld: [ OK ]
Starting mysqld: [ OK ]
[root@ip-172-31-6-148 /]# 
3.重啟cloudera-scm-server服務
[root@ip-172-31-6-148 /]# service cloudera-scm-server restart
Stopping cloudera-scm-server: [ OK ]
Starting cloudera-scm-server: [ OK ]
[root@ip-172-31-6-148 /]#CM正常啟動，問題解決。
4.備註
- 出現InnoDBengines not found
登錄mysql通過show engines命令查看mysql引擎
mysql> show engines;
+------------+---------+------------------------------------------------------------+--------------+------+------------+
| Engine | Support | Comment | Transactions | XA | Savepoints |
+------------+---------+------------------------------------------------------------+--------------+------+------------+
| MRG_MYISAM | YES | Collection of identical MyISAM tables | NO | NO | NO |
| CSV | YES | CSV storage engine | NO | NO | NO |
| MyISAM | DEFAULT | Default engine as of MySQL 3.23 with great performance | NO | NO | NO |
| InnoDB | YES | Supports transactions, row-level locking, and foreign keys | YES | YES | YES |
| MEMORY | YES | Hash based, stored in memory, useful for temporary tables | NO | NO | NO |
+------------+---------+------------------------------------------------------------+--------------+------+------------+
5 rows in set (0.00 sec)
mysql> 
註意：如果沒有顯示InnoDB Engine可能是/tmp目錄權限不足導致，也可能是源碼編譯的時候未編譯InnoDB引擎；
- 可以通過showplugins命令查看mysql支持的插件
mysql> show plugins;
+------------+--------+----------------+---------+---------+
| Name | Status | Type | Library | License |
+------------+--------+----------------+---------+---------+
| binlog | ACTIVE | STORAGE ENGINE | NULL | GPL |
| partition | ACTIVE | STORAGE ENGINE | NULL | GPL |
| CSV | ACTIVE | STORAGE ENGINE | NULL | GPL |
| MEMORY | ACTIVE | STORAGE ENGINE | NULL | GPL |
| InnoDB | ACTIVE | STORAGE ENGINE | NULL | GPL |
| MyISAM | ACTIVE | STORAGE ENGINE | NULL | GPL |
| MRG_MYISAM | ACTIVE | STORAGE ENGINE | NULL | GPL |
+------------+--------+----------------+---------+---------+
7 rows in set (0.00 sec)
mysql> 
如果沒有InnoDB則可以通過INSTALL命令安裝
- 使用INSTALL命令安裝InnoDB
查看mysql插件安裝目錄
mysql> show variables like ‘plugin_dir‘;
+---------------+-------------------------+
| Variable_name | Value |
+---------------+-------------------------+
| plugin_dir | /usr/lib64/mysql/plugin |
+---------------+-------------------------+
1 row in set (0.00 sec)
查看linux目錄下是否有ha_innodb*.so的文件
[root@ip-172-31-6-148 ~]# cd /usr/lib64/mysql/plugin
[root@ip-172-31-6-148 plugin]# ll
total 1416
lrwxrwxrwx 1 root root 25 Sep 10 15:47 ha_innodb_plugin.so -> ha_innodb_plugin.so.0.0.0
lrwxrwxrwx 1 root root 25 Sep 10 15:47 ha_innodb_plugin.so.0 -> ha_innodb_plugin.so.0.0.0
-rwxr-xr-x 1 root root 1259136 Jan 26 2017 ha_innodb_plugin.so.0.0.0
[root@ip-172-31-6-148 plugin]# 
執行Install命令安裝InnoDB引擎
mysql> INSTALL PLUGIN InnoDB SONAME ‘ha_innodb_plugin.so‘;
Query OK, 0 rows affected (0.23 sec)
mysql>
如果沒有ha_innodb_plugin.so文件則需要考慮重新編譯InnoDB引擎。
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0034-CM啟動報InnoDB engine not found分析