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Mysql Replication Error Reading Master Configuration

log in tour help Tour 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 error 1201 hy000 could not initialize master info structure the company Business Learn more about hiring developers or posting ads with us Database Administrators error counting relay log space Questions Tags Users Badges Unanswered Ask Question _ Database Administrators Stack Exchange is a question and answer site for database professionals who failed to open the relay log wish to improve their database skills and learn from others in the community. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can answer The best could not find target log during relay log initialization answers are voted up and rise 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

Change Master To

configuration [ERROR] Failed to initialize the master info structure 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 par

Pinera Email Updates: Status: Closed Impact on me: None Category:MySQL Cluster: Replication Severity:S2 (Serious) Version:mysql-5.1-telco-7.1 OS:Linux (RedHad 5.4 and CentOS) Assigned to: Martin Skold Tags: 7.1.3, replication, sql node restart, telco-7.1 bzr Triage: Triaged: D2 (Serious) / R6 (Needs Assessment) / E6 (Needs Assessment) View Add Comment Files Developer Edit Submission View Progress Log Contributions [15 Apr 2010 14:42] http://dba.stackexchange.com/questions/91706/disable-mysql-replication Carlos Pinera Description: We have multi-master replication between two machines. Initially the slave status shows everything is fine. After an SQL node is restarted (/etc/init.d/mysql restart), the slave on that SQL node get an error: 100413 10:15:36 [ERROR] Error reading master configuration 100413 10:15:36 [ERROR] Failed to initialize https://bugs.mysql.com/bug.php?id=52859 the master info structure This was working fine with cluster version 7.0.9 and earlier. Setting an explicit entry in my.cnf for master-info-file has no effect. For simplicity I reduced the configuration to two machines, with each machine running a single storage node. It fails the same way with the configuration of two macnines in each cluster and replication between the clusters (total of 4 machines). After the restart the storage and sql nodes are up but the slave has not started. The my.cnf file content for 'andorinha' is: # MySQL Cluster configuation file. [mysqld] ndbcluster # Run the NDB storage engine ndb-connectstring=andorinha.isxinc.com server_id=3 auto_increment_increment=10 auto_increment_offset=3 binlog-format=ROW log-bin=row binlog-ignore-db=test ndb-log-update-as-write=OFF log-slave-updates replicate-same-server-id=0 replicate-ignore-db=test replicate-do-table=mysql.ndb_apply_status replicate-wild-ignore-table=mysql.% relay-log=/var/lib/mysql/andorinha.isxinc.com_rl relay-log-index=/var/lib/mysql/andorinha.isxinc.com_rl1 relay-log-info-file=/var/lib/mysql/relay-log.info slave-net-timeout=60 [mysql_cluster] ndb-connectstring=andorinha.isxinc.com The my.cnf file content for 'canario' is: # MySQL Cluster configuation file. [mysqld] ndbcluster # Run the NDB storage engine ndb-connectstring=canario.isxinc.com server_id=1 auto_increment_increment

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 http://perplexed.co.uk/301_restoring_a_broken_slave.htm master db server and removed the relay files from the slave. This didn't http://mysql.livejournal.com/129177.html have the desired affect. >Start slave; "Error reading slave log configuration" I then banged my head against the wall. A 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 relay log /var/runmysqld/* 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 mysql replication error relay log '/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 mySQ

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 in mysql, 2008-06-17 12:53:00 kiltum kiltum mysql 2008-06-17 12:53:00 Previous Share Next ERROR 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): 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 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

 

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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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