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Mysql Slave Error Reading Master Configuration

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Failed To Open The Relay Log

to the top Disable MySQL replication up vote 1 down vote favorite I'm running following: # cat /etc/redhat-release Red Hat Enterprise Linux Server release 6.6 (Santiago) # uname -a Linux X 2.6.32-504.3.3.el6.x86_64 #1 SMP Fri Dec 12 16:05:43 EST 2014 x86_64 x86_64 x86_64 GNU/Linux # rpm -q mysql-server mysql-server-5.1.73-3.el6_5.x86_64 # I issued STOP SLAVE; and deleted master.info and now /var/log/mysqld-error.log is producing following: [ERROR] Error reading master configuration [ERROR] Failed to initialize the master info structure could not find target log during relay log initialization What's the proper way to disable MySQL replication? mysql replication share|improve this question asked Feb 11 '15 at 15:49 alexus 16511 add a comment| 2 Answers 2 active oldest votes up vote 1 down vote accepted After you ran RESET SLAVE; make sure there is no slave status. Run this SHOW SLAVE STATUS\G If there is any information still being presented, you need to run this CHANGE MASTER TO master_host = ''; Then, go run SHOW SLAVE STATUS\G You should get nothing and master.info should be gone. From the MySQL 5.1 Documentation If any startup options for setting connection parameters (such as master host, master port, master user, and master password) are in use, then any corresponding connection information stored in the master.info file is immediately reset using the values specified for these options. Options for which values are not specified are cleared. However, since these options are deprecated in MySQL 5.1 and removed altogether from MySQL 5.5, you are encouraged to use a CHANGE MASTER TO statement instead to reset the connection parameters. (If you do not use the startup options, you must issue CHANGE MASTER TO in such cases if you do not want the connection settings to be cleared.) From the MySQL 5.6 Documentation Connection parameters are reset if the slave mysqld is shut down following RESET SLAVE. In MySQL 5.6.3 and later,

created relay files in /var/run/mysqld/ which filled up the whole of the partition and caused errors in the logs. To repair the problem i ran {{{RESET MASTER}}} on the master

Mysql Error 1872 Slave Failed To Initialize Relay Log

db server and removed the relay files from the slave. This didn't slave failed to initialize relay log info structure have the desired affect. >Start slave; "Error reading slave log configuration" I then banged my head against the wall. A failed to open the relay log 'first' (relay_log_pos 4) blog documented a similar problem whereby the files master.info and relay-bin.info were both empty. And to delete them Gung-Ho I deleted the following sudo rm /var/lib/mysql/relay-log.info sudo rm /var/lib/mysql/master.info sudo rm /var/runmysqld/* http://dba.stackexchange.com/questions/91706/disable-mysql-replication Restarted slave and everything was back to normal.... apart from the data loss. See Mysqldump and restore slave from master using bash Handling other Errors Error "ERROR 1201 (HY000): Could not initialize master info structure; more error messages can be found in the MySQL error log" I opened the syslog where the message said >sudo less /var/log/syslog [ERROR] Failed to open the relay log http://perplexed.co.uk/301_restoring_a_broken_slave.htm '/var/run/mysqld/mysqld-relay-bin.000040' (relay_log_pos 202987) I opened up the relay-log.info file >sudo nano /var/lib/mysql/relay-log.info /var/run/mysqld/mysqld-relay-bin.000040 ... In the directory /var/run/mysqld/ and the mysql directory log file mysqld-relay-bin.index there were only three files mentioned, which did not include mysqld-relay-bin.000040. I deleted the the relay-log.info file sudo rm /var/lib/mysql/relay-log.info And restarted mysql slave successfully. Error: "Slave_IO_Running: No" I got this another day mysql> SHOW SLAVE STATUS\G ... Slave_IO_Running: No Slave_SQL_Running: Yes ... The log file defined in "my.cnf" err-log=/data/logs/mysqld/mysqld.log Looking in err-log=/data/logs/mysqld/mysqld.log contained the following lines. 080718 10:35:34 [Note] Slave I/O thread: connected to master 'replicateuser@1.2.3.4:3306', replication started in log 'db1-bin.000125' at position 920655371 080718 10:35:34 [ERROR] Error reading packet from server: log event entry exceeded max_allowed_packet; Increase max_allowed_packet on master (server_errno=1236) 080718 10:35:34 [ERROR] Got fatal error 1236: 'log event entry exceeded max_allowed_packet; Increase max_allowed_packet on master' from master when reading data from binary log 080718 10:35:34 [ERROR] Slave I/O thread exiting, read up to log 'db1-bin.000125', position 920655371 It tells us what to do Update the mysql parameter on the master. So edit my.cnf with... max_allowed_packet=16M Edit Article Comments greatgreat information!Created 05/11/09willow315I am attempting to resolve an issue with mySQL timing out and bringin

mysql Log in Or connect using: Facebook Twitter VK Google+ Mail.ru OpenID Error Username: Error Password: Forgot password? Remember me Log in Forgot password? Create an Account Your OpenID URL: Log in kiltum (kiltum) wrote http://mysql.livejournal.com/129177.html in mysql, 2008-06-17 12:53:00 kiltum kiltum mysql 2008-06-17 12:53:00 Previous Share Next ERROR http://serverfault.com/questions/715849/hard-reboot-causes-mysql-replication-to-break 1201 (HY000): Could not initialize master info structure ... Hello all. I'm so bored to kill this error ... can anybody help me?I have one master and about 10 slave servers. Time to time one (absolutely random) slave server lost replication connection. When i type slave stop; slave start; i see "ERROR 1201 (HY000): relay log Could not initialize master info structure; more error messages can be found in the MySQL error log"When i look at /var/log/mysql.log, i see[ERROR] Failed to open the relay log '/var/run/mysqld/mysqld-relay-bin.000759' (relay_log_pos 235)080617 12:25:45 [ERROR] Could not find target log during relay log initializationOK, "slave reset", drop databases , set MASTER etc, slave start - and replication does just fine. without any errors. Until the next time.I add mysql error 1872 to my.cnf next lines:max-relay-log-size=1Mmax-binlog-size=2Mrelay-log=/var/run/mysqld/mysqld-relay-binBut without any effect: replication may work fine long time or break at next hour.Question: how can set replication, that always work ? :)Platform: Linux Fedora 6 & 7, mysql 5.0.45, no any errors about disk or memory. Size of replication tables - about 1-2Mb Post a new comment Error We will log you in after post We will log you in after post We will log you in after post We will log you in after post We will log you in after post Anonymously switch LiveJournal Facebook Twitter OpenId Google MailRu VKontakte Anonymously default userpic Insert Bold Insert Italic Insert Underline Insert Strikethrough Insert Link Insert LJ User Insert Photo Insert Media Post a new comment Preview comment Help 9 comments Post a new comment 9 comments Follow us: Follow us on Facebook Follow us on Twitter Applications iOS Android Choose language English English (UK) Deutsch Dansk español Français Italiano Русский Українська Беларуская 日本語 Português Esperanto עברית Nederlands Magyar Gaeilge íslenska suomi Ελληνικά Norsk bokmål Svenska polski 简体中文 Latviešu Türkçe Bahasa Melayu हिन्दी Português Brasileiro 繁體中文 Lietuvių Norsk nynorsk Current version v.142.5 About Terms of Service Privacy Policy © 1999 LiveJournal, Inc. All rights reserved

Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is a question and answer site for system and network administrators. Join them; it only takes a minute: Sign up Here's 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 (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 Exec_Master_Log_Pos: 37550 Relay_Log_Space: 529 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: 0 Master_SSL_Verify_Se

 

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error hy at line p Software RAID in Ubuntu Karmic MySQL replication dies with ERROR HY Could not error reading master configuration initialize master info structure Posted by Admin bull Friday February error counting relay log space bull Category Linux On a fine happy morning I am greeted with an alert failed to open the relay log that slave is not running Running start slave yields this ERROR HY Could not initialize master info structure more error messages can be found in error hy could not initialize master info structure for the MySQL error log Enabling the log yielded nothing

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error mysql p replication on slave version has stopped Slave IO Running was marked as Yes but Slave SQL Running as No Simple stop start slave didn't help so further problem analysis was relay log write failure could not queue event from master needed It seemed that current slave's relay log was corrupted because testing log event entry exceeded max allowed packet with mysqlbinlog has printed out an error Therefore the solution was to discard current relay binlogs and to relay master log file point slave to the last master binlog position Here is complete output from show slave status

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error counting relay log space p didn't fix my problem What I encountered was that the relay-bin from my MySQL slave server has already been rotated' meaning deleted from the could not find target log during relay log initialization folder This happens when the slave has been disconnected from the master for quite failed to open the relay log a long time already and has not replicated anything A simple way to fix this is to flush the logs could not initialize master info structure but make sure the slave is stopped before using this command FLUSH LOGS Bring in

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error counting relay log space mysql p Community Podcasts MySQL com Downloads Documentation Section Menu MySQL Forums Replication Replication logs cleanup New Topic Advanced Search Replication logs could not find target log during relay log initialization cleanup Posted by Rupesh Date October PM The Failed To Open The Relay Log latest binary log no on my slave server mysql a was db -relay-bin to free up space could not initialize master info structure I deleted old logs from to But now when I try to start slave I get the following msg mysql start slave ERROR HY Could Not Find

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error failed to initialize the master info structure p by Harjit Lakhan on Thu Nov UTC ERROR ERROR Failed to open error reading master configuration the relay log ' var run mysqld mysqld-relay-bin ' relay log pos ERROR Could not error counting relay log space find target log during relay log initialization ERROR Failed to initialize the master failed to open the relay log info structure Due to the way in which the master and slaves where stoppedthe relay logs got out of sync hence replication would could not find target log during relay log initialization not restart Found the

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error initializing relay log position p Reporter Matthew Montgomery Email Updates Status Duplicate Impact on me None Category MySQL Server failed to open the relay log Replication Severity S Non-critical Version mysql- OS Linux Assigned to Luis Soares Triage Triaged could not find target log during relay log initialization D Medium View Add Comment Files Developer Edit Submission View Progress Log Contributions Jul Could Not Initialize Master Info Structure Matthew Montgomery Description CHANGE MASTER TO is not accepting relative path for relay log file without prefixed onto log file name Setting relay log host -relay-bin does not Mysql Purge Relay

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Mysql Error p Community Podcasts MySQL com Downloads Documentation Section Menu MySQL Forums Replication Could not initialize master info structure more error messages can be error reading master configuration found in the MySQL error log New Topic Advanced Search Could not Error Counting Relay Log Space initialize master info structure more error messages can be found in the MySQL error log Posted by failed to open the relay log Prakash Nallusamy Date July AM Hi I am facing this issue I am having master server and slaves due to some problem could not find target log during relay log initialization

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