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error reading master configuration mysql replication

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 could not initialize master info structure more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags mysql error error reading master configuration Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, error counting relay log space helping each other. Join them; it only takes a minute: Sign up Error: “could not initailize master info structure” while doing Master Slave Replication in MySQL up vote 26 down vote favorite 6 I am trying to do

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Master Slave Replication for MySQL. When i am typing the following command: CHANGE MASTER TO MASTER_HOST='10.1.100.1', MASTER_USER='slave_user', MASTER_PASSWORD='slave_password', MASTER_LOG_FILE='mysql-bin.000001', MASTER_LOG_POS=451228; mysql> START SLAVE; it throws the following error: ERROR 1201 (HY000): Could not initialize master info structure; more error messages can be found in the MySQL error log Any help would be greatly appreciated. mysql replication master slave share|improve this question edited Feb 17 '11 at 20:51 Vijay Dev 9,231145589 asked Feb 17 '11 at 13:22 could not find target log during relay log initialization user619684 131123 add a comment| 2 Answers 2 active oldest votes up vote 89 down vote TRY TO RESET IT, IT DOES MAGIC! ON SLAVE THE SLAVE MYSQL COMMAND TYPE: RESET SLAVE; THEN TRY AGAIN: CHANGE MASTER TO MASTER_HOST='10.1.100.1', MASTER_USER='slave_user', MASTER_PASSWORD='slave_password', MASTER_LOG_FILE='mysql-bin.000001', MASTER_LOG_POS=451228; mysql> START SLAVE; share|improve this answer answered Mar 29 '12 at 21:10 Neo 4,70913655 1 thanks a lot, had same problem here... –eran Nov 12 '12 at 16:15 1 Thanks a lot. This worked for me :D Power! (y) hehe –marknt15 May 15 '14 at 7:13 2 Worked for me. This blew my mind. –Logan Bissonnette May 28 '14 at 20:51 2 This is the solution, in my case in happened after doing start slave with a wrong server_id in the slave, stop and start did not work before doing reset. –danigosa Oct 8 '14 at 11:49 awesome man !!! –Pankaj Katiyar Aug 10 at 12:57 add a comment| Did you find this question interesting? Try our newsletter Sign up for our newsletter and get our top new questions delivered to your inbox (see an example). Subscribed! Success! Please click the link in the confirmation email to activate your subscription. up vote 4 down vote Please check several things: 1) Make sure the Master's /etc/my.cnf has server_id actually set Here is why: Replication relies on the ser

into a little issue setting up a MySQL slave. I have done this a least a have dozen times change master to before, and it is always pretty painless, but this time, I kept getting hung up on error that looked like this: 071118 16:44:10 [ERROR] Failed to open the relay log './-relay-bin.003525' (relay_log_pos 22940879) 071118 16:44:10 [ERROR] Could not find target log during relay log initialization 071118 16:44:10 [ERROR] Failed to initialize the http://stackoverflow.com/questions/5029485/error-could-not-initailize-master-info-structure-while-doing-master-slave-rep master info structure Googling a little turned up this mysql forum, http://forums.mysql.com/read.php?26,112490,223025#msg-223025 Which then led me to this mysql doc page http://dev.mysql.com/doc/refman/5.0/en/replication-howto-additionalslaves.html This was confusing, and didn't really seem like it got to the root of the problem. Why would one slave care about another, if they were both reading from the master? http://dev.nuclearrooster.com/2009/03/06/relay-log-issues-when-starting-mysql-replication-slave/ I think that article would more accurately be called "Making a slave of a slave" or some such, because "Introducing Additional Slaves to an Existing Replication Environment" does not convey that they are talking about a slave of a slave (which I think they are). Anyway, long and short of it, I removed the ‘master.info' ‘mysqld-relay-bin.*' ‘relay-log.info' ‘relay-log-index.*' from the MySQL data directory, restarted mysql (‘/etc/init.d/mysql restart'), and off to the races. Sometimes, depending on the order you do edit the configs or restart mysql, you can get bad data in those files, and it can lead to crpytic errors. Remove those, and you can always start fresh. This entry was posted in Uncategorized. Bookmark the permalink. 6 thoughts on “Relay log issues when starting MySQL replication slave” Akom says: May 2, 2011 at 1:33 pm That really helped - mine broke with a 5.0 to 5.1 upgrade on the slave (master is still 5.0

Pinera Email Updates: Status: Closed Impact on me: None https://bugs.mysql.com/bug.php?id=52859 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 relay log [15 Apr 2010 14:42] 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 error reading master 100413 10:15:36 [ERROR] Failed to initialize 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 con

 

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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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