- Plesk 12.5 for Linux
- Plesk Onyx for Linux
MariaDB or MySQL service shuts down automatically with the following error message:
CONFIG_TEXT: ERROR: Zend_Db_Adapter_Exception: SQLSTATE[HY000]  Connection refused
The following error appears when trying to access Plesk:
PLESK_INFO: ERROR: Zend_Db_Adapter_Exception: SQLSTATE[HY000]  No such file or directory Additionally, an exception has occurred while trying to report this error: Zend_Exception No entry is registered for key 'translate' (Abstract.php:144)
Plesk and websites are down;
/var/log/mysql/error.log), the following error message can be found:
CONFIG_TEXT: [ERROR] Plugin 'InnoDB' init function returned error.
[ERROR] Plugin 'InnoDB' registration as a STORAGE ENGINE failed.
[ERROR] mysqld: Out of memory (Needed 128917504 bytes)
[ERROR] mysqld: Out of memory (Needed 96681984 bytes)
161104 21:24:07 [Note] Plugin 'FEEDBACK' is disabled.
[ERROR] Unknown/unsupported storage engine: InnoDB
[Note] /usr/libexec/mysqld: Shutdown complete
CONFIG_TEXT: mysqld_safe mysqld restarted
/usr/libexec/mysqld: error while loading shared libraries: libc.so.6: cannot map zero-fill pages: Cannot allocate memory
170821 16:10:57 mysqld_safe mysqld from pid file /var/run/mariadb/mariadb.pid ended
The following error may appear in the
CONFIG_TEXT: mysqld_safe: ps: error while loading shared libraries: /lib64/libelf.so.1: cannot allocate version reference table: Cannot allocate memory
Less than 100MB of free RAM is available on the server:
# free -m
total used free shared buff/cache available
Mem: 993M 430M 96M 173M 465M 248M
Swap: 0B 0B 0B
Alternatively, no free space is available on the server:
# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 10G 10G 20K 100% /
Insufficient RAM or other container resources.
Contact the responsible person and increase server's RAM.
Connect to the server via SSH and check its limits if it is a container:
# cat /proc/user_beancounters
Note: All the
failcnt values should be 0. Contact your service provider if required.