Error 1201 Hy000 Mysql
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how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Hard reboot causes MySQL replication to break up vote 0 down vote favorite I have encountered an issue with my replication setup. Under normal circumstances it performs as intended, but it breaks if it encounters a hard reboot error 1215 hy000 mysql (I pull the power cable). Setup The setup consists of two servers, server-1 and server-2. The replication setup is a circular replication. Both servers are slaves replicating from the other host as if it were the master. Software Red Hat 6.5 MySQL 5.1.73-3 MySQL-libs 5.1.73-3 MySQL-server 5.1.73-3 Redundancy configuration The replication configuration is as follows for server-1, and is mirrored for server-2: GRANT REPLICATION SLAVE ON *.* TO 'replicant'; FLUSH TABLES WITH READ LOCK;" #Use "SHOW MASTER STATUS \G;" to determine log position and log file UNLOCK TABLES; # set status on slave server using the values retieved earlier CHANGE MASTER TO MASTER_HOST='server-2', MASTER_USER='replicant', MASTER_LOG_FILE='[log file]', MASTER_LOG_POS=[log pos];" START SLAVE; Error information This information is retrieved when the server-2 has encountered a hard reboot and the replication is broken. server-1 slave status *************************** 1. row *************************** Slave_IO_State: Waiting for master to send event Master_Host: server-2 Master_User: replicant Master_Port: 3306 Connect_Retry: 60 Master_Log_File: bin.000004 Read_Master_Log_Pos: 37550 Relay_Log_File: relay.000427 Relay_Log_Pos: 245 Relay_Master_Log_File: bin.000004 Slave_IO_Running: Yes Slave_SQL_Running: Yes Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Ex
Karmic (9.10) | Software RAID in Ubuntu Karmic 9.10 > MySQL replication dies with ERROR 1201 (HY000): Could not initialize master info structure Posted by Admin • Friday, February 12. 2010 •
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Category: Linux On a fine happy morning I am greeted with an alert
Error Reading Master Configuration
that slave is not running. Running start slave yields this: ERROR 1201 (HY000): Could not initialize master info structure; more error error 1201 hy000 could not initialize master info structure messages can be found in the MySQL error log Enabling the log yielded nothing. Googling yielded This Page that helped me a lot, but I didn't have to do quite as much work all http://serverfault.com/questions/715849/hard-reboot-causes-mysql-replication-to-break over again. Here is what I did. First, I saved my "SHOW SLAVE STATUS\G" output: ************************** 1. row ************************** Slave_IO_State: Master_Host: 127.0.0.1 Master_User: replication Master_Port: 3307 Connect_Retry: 60 Master_Log_File: mysqld-bin.000401 Read_Master_Log_Pos: 98 Relay_Log_File: mysqld-relay-bin.006135 Relay_Log_Pos: 242 Relay_Master_Log_File: mysqld-bin.000401 Slave_IO_Running: No Slave_SQL_Running: No Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 98 Relay_Log_Space: 0 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: http://tech.akom.net/archives/50-MySQL-replication-dies-with-ERROR-1201-HY000-Could-not-initialize-master-info-structure.html Master_SSL_Key: Seconds_Behind_Master: NULL 1 row in set (0.00 sec) Next I followed instructions from the blog I mentioned above: STOP SLAVE; RESET SLAVE; Instead of fully reconfiguring I simply tried to start slave. This is a bad idea because it seems to just try to start slaving off the front of the first binlog file it finds, getting conflicts (or worse). So I tried something simple: mysql> CHANGE MASTER TO MASTER_LOG_POS=98 , MASTER_LOG_FILE = 'mysqld-bin.000401'; Query OK, 0 rows affected (0.04 sec) mysql> start slave; Query OK, 0 rows affected (0.00 sec) The position comes from the output I saved before It's working fine again. Still don't know what caused this - possibly random remote server power cycling... 0 Trackbacks Trackback specific URI for this entry No Trackbacks 2 Comments Display comments as (Linear | Threaded) Anonymous on 2010-12-22 09:15: dude you are awesome..thanks alot Anonymous on 2011-06-07 08:34: You just saved me a lot of time and a lot of Advil. Thanks! Add Comment Name Email Homepage [ Top level ]#1: Anonymous on 2010-12-22 09:15 #2: Anonymous on 2011-06-07 08:34 You can use [geshi lang=lang_name [,ln={y|n}]][/geshi] tags to embed source code snippets.Enclosing asterisks marks text as bold (*word*), underscore are
Elkin Email Updates: Status: Can't repeat Impact on me: None Category:MySQL Server: Replication Severity:S3 (Non-critical) Version:5.1+ OS:Any Assigned to: Daogang Qu Tags: https://bugs.mysql.com/bug.php?id=44181 RESET SLAVE Triage: Triaged: D2 (Serious) View Add Comment Files Developer Edit Submission View Progress Log Contributions [9 Apr 2009 8:33] Andrei Elkin Description: CHANGE MASTER can't make http://www.onaxer.com/2010/10/18/mysql-replication-dies-with-error-1201-hy000-could-not-initialize-master-info-structure/ it if before RESET SLAVE failed at purging relay log files (see Bug #44179). ERROR 1201 (HY000): Could not initialize master info structure or ERROR 29 (HY000): File './slave-relay-bin.000001' hy000 mysql not found (Errcode:2) persist even if RESET SLAVE and restart the slave server are attempted. There seems to be only manual removing of obsolate slave info files can help. How to repeat: mysql> RESET SLAVE /* and simulate an error inside my_delete_allow_opened() -> my_delete() as bug#44179 instucts */; There might be a crash as bug#44179 reported. At restart: error 1201 hy000 mysql> change master to master_host='dummy'; ERROR 1201 (HY000): Could not initialize master info structure; more error messages can be found in the MySQL error log mysql> reset slave; Query OK, 0 rows affected (5.07 sec) or restart, and again mysql> change master to master_host='dummy'; ERROR 29 (HY000): File './slave-relay-bin.000001' not found (Errcode: 2) [22 Aug 2009 10:45] Daogang Qu The problem can't be reproduced. Please review the following test: daogangq@daogangq-laptop:~/mysql/bzrwork/bug44181/mysql-5.1-bugteam/mysql-test$ ./mtr --start rpl_view Logging: ./mtr --start rpl_view 090822 13:46:52 [Note] Plugin 'FEDERATED' is disabled. 090822 13:46:52 [Note] Plugin 'ndbcluster' is disabled. 090822 13:46:52 [Warning] Forcing shutdown of 2 plugins MySQL Version 5.1.39 Checking supported features... - using ndbcluster when necessary, mysqld supports it - SSL connections supported - binaries are debug compiled Collecting tests... - adding combinations for rpl vardir: /home/daogangq/mysql/bzrwork/bug44181/mysql-5.1-bugteam/mysql-test/var Checking leftover processes... - found old pid 18878 in 'mysqld.1.pid', killing it... process did not exist! - found old pid 18881 in 'mysqld.2.pid', killing it... process did not exist! Removing old var directory... Creating var directory '/home/daogangq/mysql/bzrwork/bug44181/mysql-5.1-bugteam/mysql-test/var'... Installing system data
a reply » Here is what I did. 1. First, I saved my "SHOW SLAVE STATUS\G" output: ************************** 1. row ************************** Slave_IO_State: Master_Host: 127.0.0.1 Master_User: replication Master_Port: 3307 Connect_Retry: 60 Master_Log_File: mysqld-bin.000401 Read_Master_Log_Pos: 98 Relay_Log_File: mysqld-relay-bin.006135 Relay_Log_Pos: 242 Relay_Master_Log_File: mysqld-bin.000401 Slave_IO_Running: No Slave_SQL_Running: No Replicate_Do_DB: Replicate_Ignore_DB: Replicate_Do_Table: Replicate_Ignore_Table: Replicate_Wild_Do_Table: Replicate_Wild_Ignore_Table: Last_Errno: 0 Last_Error: Skip_Counter: 0 Exec_Master_Log_Pos: 98 Relay_Log_Space: 0 Until_Condition: None Until_Log_File: Until_Log_Pos: 0 Master_SSL_Allowed: No Master_SSL_CA_File: Master_SSL_CA_Path: Master_SSL_Cert: Master_SSL_Cipher: Master_SSL_Key: Seconds_Behind_Master: NULL 1 row in set (0.00 sec) 2. Next I followed instructions from the blog I mentioned above: STOP SLAVE; RESET SLAVE; 3. Instead of fully reconfiguring I simply tried to start slave. This is a bad idea because it seems to just try to start slaving off the front of the first binlog file it finds, getting conflicts (or worse). 4. So I tried something simple: mysql> CHANGE MASTER TO MASTER_LOG_POS=98 , MASTER_LOG_FILE = ‘mysqld-bin.000401′; Query OK, 0 rows affected (0.04 sec) mysql> start slave; Query OK, 0 rows affected (0.00 sec) The position comes from the output I saved before It's working fine again. Still don't know what caused this - possibly random remote server power cycling… Previous Entry: Configuring Firewall on CentOS -Shorewall Next Entry: [ERROR] Failed to open log (file ‘./mysql-bin.00000X', errno 2) Posted in Mysql Tags: Could not initialize master info structure ERROR 1201 MySQL replication dies with ERROR 1201 You can follow any responses to this entry through the RSS 2.0 Feed. You can leave a response , or trackback from your own site. Advertisement blog comments powered by Disqus Popular Posts InnoDB: The InnoDB memory heap is disabled : I enabled the innodb_plugin-1... 10 comment(s) | 35007 view(s) How to check apache httpd process in linux: To check all the apache httpd ... 13 comment(s) | 33367 view(s) mysqld_safe A mysqld process already exists : Today I faced issue again ... 2 comment(s) | 15688 view(s) Install MySQL 5.5 on Ubuntu: I followed the steps on this p... 5 comment(s) | 14917 view(s) InnoDB: Unable to lock ./ibdata1, error: 37: InnoDB: Unable to lock ./ibdat... 10 comment(s) | 13386 view(s) No package 'libpcre' found: I was getting "No package 'lib... 5 comment(s) | 8734 view(s) Nagios: ndomod: Still unable to connect to dat