MySQL 5.6 “innodb_table_stats” not found

Fix this annoying error in MySQL 5.6

On systems that were upgraded from MySQL 5.5 to 5.6 (Oracle, Percona, etc.) – you may see the following error:

Error: Table “mysql”.”innodb_table_stats” not found.

Here’s a more complete example:

2016-06-14 15:08:03 7f82b3fff700 InnoDB: Error: Table "mysql"."innodb_table_stats" not found.
2016-06-14 15:08:03 7f82b3fff700 InnoDB: Recalculation of persistent statistics requested for table "mydb1"."cron_schedule" but the required persistent statistics storage is not present or is corrupted. Using transient stats instead.
2016-06-14 15:08:04 7f82b3fff700 InnoDB: Error: Table "mysql"."innodb_table_stats" not found.
2016-06-14 15:08:04 7f82b3fff700 InnoDB: Recalculation of persistent statistics requested for table "mydb2"."cron_schedule" but the required persistent statistics storage is not present or is corrupted. Using transient stats instead.

Why is this error occuring?

MySQL 5.6 introduces a new “persistent optimizer statistics” feature which stores statistical data about your databases in the “mysql” database. These tables do not get created when upgrading from MySQL 5.5 to 5.6, which causes heavy error logging in mysqld.log.

How to fix the innodb_table_stats not found error

To fix this issue, you need to manually create the tables:

DROP TABLE IF EXISTS `innodb_index_stats`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `innodb_index_stats` (
 `database_name` varchar(64) COLLATE utf8_bin NOT NULL,
 `table_name` varchar(64) COLLATE utf8_bin NOT NULL,
 `index_name` varchar(64) COLLATE utf8_bin NOT NULL,
 `last_update` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
 `stat_name` varchar(64) COLLATE utf8_bin NOT NULL,
 `stat_value` bigint(20) unsigned NOT NULL,
 `sample_size` bigint(20) unsigned DEFAULT NULL,
 `stat_description` varchar(1024) COLLATE utf8_bin NOT NULL,
 PRIMARY KEY (`database_name`,`table_name`,`index_name`,`stat_name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin STATS_PERSISTENT=0;
/*!40101 SET character_set_client = @saved_cs_client */;

DROP TABLE IF EXISTS `innodb_table_stats`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `innodb_table_stats` (
 `database_name` varchar(64) COLLATE utf8_bin NOT NULL,
 `table_name` varchar(64) COLLATE utf8_bin NOT NULL,
 `last_update` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
 `n_rows` bigint(20) unsigned NOT NULL,
 `clustered_index_size` bigint(20) unsigned NOT NULL,
 `sum_of_other_index_sizes` bigint(20) unsigned NOT NULL,
 PRIMARY KEY (`database_name`,`table_name`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin STATS_PERSISTENT=0;
/*!40101 SET character_set_client = @saved_cs_client */;

DROP TABLE IF EXISTS `slave_master_info`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `slave_master_info` (
 `Number_of_lines` int(10) unsigned NOT NULL COMMENT 'Number of lines in the file.',
 `Master_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'The name of the master binary log currently being read from the master.',
 `Master_log_pos` bigint(20) unsigned NOT NULL COMMENT 'The master log position of the last read event.',
 `Host` char(64) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT '' COMMENT 'The host name of the master.',
 `User_name` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The user name used to connect to the master.',
 `User_password` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The password used to connect to the master.',
 `Port` int(10) unsigned NOT NULL COMMENT 'The network port used to connect to the master.',
 `Connect_retry` int(10) unsigned NOT NULL COMMENT 'The period (in seconds) that the slave will wait before trying to reconnect to the master.',
 `Enabled_ssl` tinyint(1) NOT NULL COMMENT 'Indicates whether the server supports SSL connections.',
 `Ssl_ca` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The file used for the Certificate Authority (CA) certificate.',
 `Ssl_capath` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The path to the Certificate Authority (CA) certificates.',
 `Ssl_cert` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The name of the SSL certificate file.',
 `Ssl_cipher` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The name of the cipher in use for the SSL connection.',
 `Ssl_key` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The name of the SSL key file.',
 `Ssl_verify_server_cert` tinyint(1) NOT NULL COMMENT 'Whether to verify the server certificate.',
 `Heartbeat` float NOT NULL,
 `Bind` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'Displays which interface is employed when connecting to the MySQL server',
 `Ignored_server_ids` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The number of server IDs to be ignored, followed by the actual server IDs',
 `Uuid` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The master server uuid.',
 `Retry_count` bigint(20) unsigned NOT NULL COMMENT 'Number of reconnect attempts, to the master, before giving up.',
 `Ssl_crl` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The file used for the Certificate Revocation List (CRL)',
 `Ssl_crlpath` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT 'The path used for Certificate Revocation List (CRL) files',
 `Enabled_auto_position` tinyint(1) NOT NULL COMMENT 'Indicates whether GTIDs will be used to retrieve events from the master.',
 PRIMARY KEY (`Host`,`Port`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT='Master Information';
/*!40101 SET character_set_client = @saved_cs_client */;

DROP TABLE IF EXISTS `slave_relay_log_info`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `slave_relay_log_info` (
 `Number_of_lines` int(10) unsigned NOT NULL COMMENT 'Number of lines in the file or rows in the table. Used to version table definitions.',
 `Relay_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'The name of the current relay log file.',
 `Relay_log_pos` bigint(20) unsigned NOT NULL COMMENT 'The relay log position of the last executed event.',
 `Master_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT 'The name of the master binary log file from which the events in the relay log file were read.',
 `Master_log_pos` bigint(20) unsigned NOT NULL COMMENT 'The master log position of the last executed event.',
 `Sql_delay` int(11) NOT NULL COMMENT 'The number of seconds that the slave must lag behind the master.',
 `Number_of_workers` int(10) unsigned NOT NULL,
 `Id` int(10) unsigned NOT NULL COMMENT 'Internal Id that uniquely identifies this record.',
 PRIMARY KEY (`Id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT='Relay Log Information';
/*!40101 SET character_set_client = @saved_cs_client */;

DROP TABLE IF EXISTS `slave_worker_info`;
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `slave_worker_info` (
 `Id` int(10) unsigned NOT NULL,
 `Relay_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
 `Relay_log_pos` bigint(20) unsigned NOT NULL,
 `Master_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
 `Master_log_pos` bigint(20) unsigned NOT NULL,
 `Checkpoint_relay_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
 `Checkpoint_relay_log_pos` bigint(20) unsigned NOT NULL,
 `Checkpoint_master_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
 `Checkpoint_master_log_pos` bigint(20) unsigned NOT NULL,
 `Checkpoint_seqno` int(10) unsigned NOT NULL,
 `Checkpoint_group_size` int(10) unsigned NOT NULL,
 `Checkpoint_group_bitmap` blob NOT NULL,
 PRIMARY KEY (`Id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT='Worker Information';
/*!40101 SET character_set_client = @saved_cs_client */;

As soon as these tables are created, MySQL should start storing data in these tables and the error logging about “innodb_table_stats not found” should stop.

This entry was posted in MySQL. Bookmark the permalink.

Comments are closed.