I have installed mysql server on ec2 AMI. Suddenly stopped working mysql server and its not getting started.
Here is mysql log :
160629 4:28:37 [Note] /usr/libexec/mysql55/mysqld (mysqld 5.5.46) starting as process 3059 ...
160629 4:28:37 [Note] Plugin 'FEDERATED' is disabled.
160629 4:28:37 InnoDB: The InnoDB memory heap is disabled
160629 4:28:37 InnoDB: Mutexes and rw_locks use GCC atomic builtins
160629 4:28:37 InnoDB: Compressed tables use zlib 1.2.8
160629 4:28:37 InnoDB: Using Linux native AIO
160629 4:28:37 InnoDB: Initializing buffer pool, size = 512.0M
160629 4:28:37 InnoDB: Completed initialization of buffer pool
160629 4:28:37 InnoDB: highest supported file format is Barracuda.
InnoDB: No valid checkpoint found.
InnoDB: If this error appears when you are creating an InnoDB database,
InnoDB: the problem may be that during an earlier attempt you managed
InnoDB: to create the InnoDB data files, but log file creation failed.
InnoDB: If that is the case, please refer to
InnoDB: http://dev.mysql.com/doc/refman/5.5/en/error-creating-innodb.html
160629 4:28:37 [ERROR] Plugin 'InnoDB' init function returned error.
160629 4:28:37 [ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
160629 4:28:37 [ERROR] Unknown/unsupported storage engine: InnoDB
160629 4:28:37 [ERROR] Aborting
160629 4:28:37 [Note] /usr/libexec/mysql55/mysqld: Shutdown complete
160629 04:28:37 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended
Here are approach what I have tried yet:
1) Upgraded EC2 t2.micro to t2.medium.
2) Increased innodb_buffer_pool_size in my.cnf
3) Rename ib_logfile0 and ib_logfile1
Please suggest what next step should I do to start mysql.
Edit:
Sudo free -m
total used free shared buffers cached
Mem: 3954 149 3805 0 9 86
-/+ buffers/cache: 53 3901
Edit:
Is there only solution to uninstall mysql and re-install ? If yes, then how can retain already created databases in mysql? Please Suggest.
