Unable to reproduce this error. Even, I'm not seeing any error while shutdown in attached error log except this, 2014-11-12 17:20:51 7332 [Note] Forcefully disconnecting 0 remaining clients Waited for 50 seconds for memcached thread to exit. Now force terminating the thread 2014-11-12 17:21:41 7332 [Note] Binlog end Do you think, is this the issue? If yes, then please provide exact steps to reproduce it. mysql> install plugin daemon_memcached soname "libmemcached.so"; Query OK, 0 rows affected (0.00 sec) mysql> show plugins; +-----------------------------+----------+--------------------+-----------------+---------+ | Name | Status | Type | Library | License | +-----------------------------+----------+--------------------+-----------------+---------+ | binlog | ACTIVE | STORAGE ENGINE | NULL | GPL | ... | daemon_memcached | ACTIVE | DAEMON | libmemcached.so | GPL | +-----------------------------+----------+--------------------+-----------------+---------+ 47 rows in set (0.00 sec) nilnandan@Dell-XPS:/usr/share/mysql$ telnet 127.0.0.1 11211 Trying 127.0.0.1... Connected to 127.0.0.1. Escape character is '^]'. set a11 10 0 9 123456789 STORED get a11 VALUE a11 10 9 123456789 END 2014-11-19 12:45:39 4008 [Note] /usr/sbin/mysqld: ready for connections. Version: '5.6.21-70.0' socket: '/var/run/mysqld/mysqld.sock' port: 3306 Percona Server (GPL), Release 70.0, Revision 688 2014-11-19 12:45:42 4008 [Note] /usr/sbin/mysqld: Normal shutdown 2014-11-19 12:45:42 4008 [Note] Giving 0 client threads a chance to die gracefully 2014-11-19 12:45:42 4008 [Note] Event Scheduler: Purging the queue. 0 events 2014-11-19 12:45:42 4008 [Note] Shutting down slave threads 2014-11-19 12:45:42 4008 [Note] Forcefully disconnecting 0 remaining clients 2014-11-19 12:45:44 4008 [Note] Binlog end 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'partition' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'PERFORMANCE_SCHEMA' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'ARCHIVE' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'BLACKHOLE' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_CHANGED_PAGES' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_SYS_DATAFILES' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_SYS_TABLESPACES' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN_COLS' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_SYS_FOREIGN' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_SYS_FIELDS' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_SYS_COLUMNS' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_SYS_INDEXES' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_SYS_TABLESTATS' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_SYS_TABLES' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_FT_INDEX_TABLE' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_FT_INDEX_CACHE' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_FT_CONFIG' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_FT_BEING_DELETED' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_FT_DELETED' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_FT_DEFAULT_STOPWORD' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_METRICS' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_BUFFER_POOL_STATS' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE_LRU' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_BUFFER_PAGE' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX_RESET' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_CMP_PER_INDEX' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_CMPMEM_RESET' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_CMPMEM' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_CMP_RESET' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_CMP' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_LOCK_WAITS' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_LOCKS' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'INNODB_TRX' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'XTRADB_RSEG' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'XTRADB_INTERNAL_HASH_TABLES' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'XTRADB_READ_VIEW' 2014-11-19 12:45:44 4008 [Note] Shutting down plugin 'InnoDB' 2014-11-19 12:45:44 4008 [Note] InnoDB: FTS optimize thread exiting. 2014-11-19 12:45:44 4008 [Note] InnoDB: Starting shutdown... 2014-11-19 12:45:46 4008 [Note] InnoDB: Shutdown completed; log sequence number 1662644 2014-11-19 12:45:46 4008 [Note] Shutting down plugin 'MyISAM' 2014-11-19 12:45:46 4008 [Note] Shutting down plugin 'MRG_MYISAM' 2014-11-19 12:45:46 4008 [Note] Shutting down plugin 'CSV' 2014-11-19 12:45:46 4008 [Note] Shutting down plugin 'MEMORY' 2014-11-19 12:45:46 4008 [Note] Shutting down plugin 'sha256_password' 2014-11-19 12:45:46 4008 [Note] Shutting down plugin 'mysql_old_password' 2014-11-19 12:45:46 4008 [Note] Shutting down plugin 'mysql_native_password' 2014-11-19 12:45:46 4008 [Note] Shutting down plugin 'binlog' 2014-11-19 12:45:46 4008 [Note] /usr/sbin/mysqld: Shutdown complete 141119 12:45:46 mysqld_safe mysqld from pid file /var/run/mysqld/mysqld.pid ended