MySQL \u7248\u672c 5.6.14<\/p>\n
\u516c\u53f8\u6709\u51e0\u53f0MySQL\u670d\u52a1\u5668\u7684\u9519\u8bef\u65e5\u5fd7\u663e\u793a,\u6709\u51e0\u4e2a\u7cfb\u7edf\u8868\u4e0d\u5b58\u5728.
\ninnodb_table_stats
\ninnodb_index_stats
\nslave_master_info
\nslave_relay_log_info
\nslave_worker_info<\/p>\n
\u8fd9\u662f\u56e0\u4e3a\u6570\u636e\u5e93\u521d\u59cb\u5316\u7684\u65f6\u5019,dba\u53ef\u80fd\u5220\u9664\u8fc7ibdata1\u6587\u4ef6
\n\u867d\u7136\u91cd\u542f\u4e4b\u540e,\u6570\u636e\u5e93\u4f1a\u81ea\u52a8\u521b\u5efa\u4e00\u4e2aibdata1\u6587\u4ef6,\u4f46\u662f\u4e0a\u8ff0\u7cfb\u7edf\u8868\u4e5f\u662finnodb\u5f15\u64ce,\u6240\u4ee5\u4e0d\u80fd\u8bbf\u95ee\u4e86.
\n\u8fd9\u867d\u7136\u4e0d\u4f1a\u5f71\u54cd\u4e1a\u52a1,\u4f46\u662f\u4f7f\u7528innobackupex\u5907\u4efd\u7684\u65f6\u5019,\u4f1a\u5199\u5165\u9519\u8bef\u65e5\u5fd7.
\n\u6700\u540e\u9519\u8bef\u65e5\u5fd7\u91cc,\u90fd\u662f\u8fd9\u79cd\u4fe1\u606f.\u5f71\u54cd\u65e5\u5e38\u68c0\u67e5\u3002<\/p>\n
\u89e3\u51b3\u7684\u65b9\u6cd5.
\n1.\u5220\u9664\u4e0a\u8ff0\u7cfb\u7edf\u8868
\ndrop table mysql.innodb_index_stats;
\ndrop table mysql.innodb_table_stats;
\ndrop table mysql.slave_master_info;
\ndrop table mysql.slave_relay_log_info;
\ndrop table mysql.slave_worker_info;<\/p>\n
<\/p>\n
2.\u5220\u9664\u76f8\u5173\u7684.frm .ibd\u6587\u4ef6
\nrm -rf innodb_index_stats*
\nrm -rf innodb_table_stats*
\nrm -rf slave_master_info*
\nrm -rf slave_relay_log_info*
\nrm -rf slave_worker_info*<\/p>\n
<\/p>\n
3.\u91cd\u65b0\u521b\u5efa\u4e0a\u8ff0\u7cfb\u7edf\u8868
\nCREATE TABLE `innodb_index_stats` (
\n`database_name` varchar(64) COLLATE utf8_bin NOT NULL,
\n`table_name` varchar(64) COLLATE utf8_bin NOT NULL,
\n`index_name` varchar(64) COLLATE utf8_bin NOT NULL,
\n`last_update` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
\n`stat_name` varchar(64) COLLATE utf8_bin NOT NULL,
\n`stat_value` bigint(20) unsigned NOT NULL,
\n`sample_size` bigint(20) unsigned DEFAULT NULL,
\n`stat_description` varchar(1024) COLLATE utf8_bin NOT NULL,
\nPRIMARY KEY (`database_name`,`table_name`,`index_name`,`stat_name`)
\n) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin STATS_PERSISTENT=0;<\/p>\n
CREATE TABLE `innodb_table_stats` (
\n`database_name` varchar(64) COLLATE utf8_bin NOT NULL,
\n`table_name` varchar(64) COLLATE utf8_bin NOT NULL,
\n`last_update` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
\n`n_rows` bigint(20) unsigned NOT NULL,
\n`clustered_index_size` bigint(20) unsigned NOT NULL,
\n`sum_of_other_index_sizes` bigint(20) unsigned NOT NULL,
\nPRIMARY KEY (`database_name`,`table_name`)
\n) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin STATS_PERSISTENT=0;<\/p>\n
CREATE TABLE `slave_master_info` (
\n`Number_of_lines` int(10) unsigned NOT NULL COMMENT ‘Number of lines in the file.’,
\n`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.’,
\n`Master_log_pos` bigint(20) unsigned NOT NULL COMMENT ‘The master log position of the last read event.’,
\n`Host` char(64) CHARACTER SET utf8 COLLATE utf8_bin NOT NULL DEFAULT ” COMMENT ‘The host name of the master.’,
\n`User_name` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT ‘The user name used to connect to the master.’,
\n`User_password` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT ‘The password used to connect to the master.’,
\n`Port` int(10) unsigned NOT NULL COMMENT ‘The network port used to connect to the master.’,
\n`Connect_retry` int(10) unsigned NOT NULL COMMENT ‘The period (in seconds) that the slave will wait before trying to reconnect to the master.’,
\n`Enabled_ssl` tinyint(1) NOT NULL COMMENT ‘Indicates whether the server supports SSL connections.’,
\n`Ssl_ca` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT ‘The file used for the Certificate Authority (CA) certificate.’,
\n`Ssl_capath` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT ‘The path to the Certificate Authority (CA) certificates.’,
\n`Ssl_cert` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT ‘The name of the SSL certificate file.’,
\n`Ssl_cipher` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT ‘The name of the cipher in use for the SSL connection.’,
\n`Ssl_key` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT ‘The name of the SSL key file.’,
\n`Ssl_verify_server_cert` tinyint(1) NOT NULL COMMENT ‘Whether to verify the server certificate.’,
\n`Heartbeat` float NOT NULL,
\n`Bind` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT ‘Displays which interface is employed when connecting to the MySQL server’,
\n`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’,
\n`Uuid` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT ‘The master server uuid.’,
\n`Retry_count` bigint(20) unsigned NOT NULL COMMENT ‘Number of reconnect attempts, to the master, before giving up.’,
\n`Ssl_crl` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT ‘The file used for the Certificate Revocation List (CRL)’,
\n`Ssl_crlpath` text CHARACTER SET utf8 COLLATE utf8_bin COMMENT ‘The path used for Certificate Revocation List (CRL) files’,
\n`Enabled_auto_position` tinyint(1) NOT NULL COMMENT ‘Indicates whether GTIDs will be used to retrieve events from the master.’,
\nPRIMARY KEY (`Host`,`Port`)
\n) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT=’Master Information’;<\/p>\n
CREATE TABLE `slave_relay_log_info` (
\n`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.’,
\n`Relay_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL COMMENT ‘The name of the current relay log file.’,
\n`Relay_log_pos` bigint(20) unsigned NOT NULL COMMENT ‘The relay log position of the last executed event.’,
\n`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.’,
\n`Master_log_pos` bigint(20) unsigned NOT NULL COMMENT ‘The master log position of the last executed event.’,
\n`Sql_delay` int(11) NOT NULL COMMENT ‘The number of seconds that the slave must lag behind the master.’,
\n`Number_of_workers` int(10) unsigned NOT NULL,
\n`Id` int(10) unsigned NOT NULL COMMENT ‘Internal Id that uniquely identifies this record.’,
\nPRIMARY KEY (`Id`)
\n) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT=’Relay Log Information’;<\/p>\n
CREATE TABLE `slave_worker_info` (
\n`Id` int(10) unsigned NOT NULL,
\n`Relay_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
\n`Relay_log_pos` bigint(20) unsigned NOT NULL,
\n`Master_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
\n`Master_log_pos` bigint(20) unsigned NOT NULL,
\n`Checkpoint_relay_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
\n`Checkpoint_relay_log_pos` bigint(20) unsigned NOT NULL,
\n`Checkpoint_master_log_name` text CHARACTER SET utf8 COLLATE utf8_bin NOT NULL,
\n`Checkpoint_master_log_pos` bigint(20) unsigned NOT NULL,
\n`Checkpoint_seqno` int(10) unsigned NOT NULL,
\n`Checkpoint_group_size` int(10) unsigned NOT NULL,
\n`Checkpoint_group_bitmap` blob NOT NULL,
\nPRIMARY KEY (`Id`)
\n) ENGINE=InnoDB DEFAULT CHARSET=utf8 STATS_PERSISTENT=0 COMMENT=’Worker Information’;<\/p>\n
<\/p>\n
4.\u5982\u679c\u662fSlave\u5907\u673a,\u505c\u6b62\u590d\u5236,\u8bb0\u5f55pos\u7b49\u4fe1\u606f
\nmysql> stop slave;
\nQuery OK, 0 rows affected (0.09 sec)<\/p>\n
5.\u91cd\u542f\u6570\u636e\u5e93<\/p>\n
6.\u5982\u679cSlave\u542f\u52a8\u62a5\u9519,\u5219\u4f7f\u7528\u6b65\u9aa44\u7684\u4fe1\u606f,\u91cd\u65b0change master<\/p>\n
\u518d\u5220\u9664ibdata1\u6587\u4ef6\u7684\u65f6\u5019,\u4e00\u5b9a\u8981\u60f3\u8d77\u7cfb\u7edf\u6570\u636e\u5e93\u8fd8\u67095\u5f20innodb\u8868…<\/p>\n