Mysql Replication Error Failed To Open The Relay Log
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My.cnf Relay-log
Position Based Replication Configuration Overview Setting Up Binary Log File Position Based Replication Setting the Replication Master Configuration Creating a User for Replication Obtaining the Replication Master Binary Log Coordinates Choosing a Method for Data Snapshots Setting Up Replication Slaves Adding Slaves to a Replication Environment Replication with Global Transaction mysql set relay_log_file Identifiers GTID Concepts Setting Up Replication Using GTIDs Using GTIDs for Failover and Scaleout Restrictions on Replication with GTIDs MySQL Multi-Source Replication MySQL Multi-Source Replication Overview Multi-Source Replication Tutorials Multi-Source Replication Monitoring Multi-Source Replication Error Messages Changing Replication Modes on Online Servers Replication Mode Concepts Enabling GTID Transactions Online Disabling GTID Transactions Online Verifying Replication of Anonymous Transactions Replication and Binary Logging Options and Variables Replication and Binary Logging Option and Variable Reference Replication Master Options and Variables Replication Slave Options and Variables Binary Logging Options and Variables Global Transaction ID Options and Variables Common Replication Administration Tasks Checking Replication Status Pausing Replication on the Slave Replication Implementation Replication Formats Advantages and Disadvantages of Statement-Based and Row-Based Replication Usage of Row-Based Logging and Replication Determination of Safe and Unsafe Statements in Binary Logging Replication Implementation Details Replication Channels Commands for Operations on a Single Channel Compatibility with Previous Replicati
Databases, mySQL Add comments So you woke up, because your mysql
Error Reading Master Configuration
replication failed suddenly with an error like: Feb 15 07:41:06 rdb-sl
Could Not Find Target Log File Mentioned In Relay Log Info In The Index File
mysqld[18223]: 080215 7:41:06 [ERROR] Failed to open log (file './db-sl-relay-bin.000030', errno 2)
Feb 15 07:41:06 error counting relay log space db-sl mysqld[18223]: 080215 7:41:06 [ERROR] Failed to open the relay log './db-sl-relay-bin.000030' (relay_log_pos 75527094)
Feb 15 07:41:06 db-sl mysqld[18223]: 080215 7:41:06 [ERROR] Could not open log https://dev.mysql.com/doc/refman/5.7/en/slave-logs-relaylog.html file before you consider making a mysqldump -masterdata on the master database and reimport the entire dump.. try this: -> stop mysql on the slave server -> find the directory that contains the relay logs (usually /var/lib/mysql) -> delete all relay logs called hostname-relay-bin.XXX, hostname-relay-bin.index and relay-log.info -> restart mysql Your mysql will start http://hoschie.org/2008/02/mysql-failed-to-open-the-relay-log/ with fresh relay logs and is getting the missing data directly from the master server, as there will be probably still bin logs! Note: This is a kind of last resort action, no guarantees here 🙂 Leave a Reply Click here to cancel reply. You must be logged in to post a comment. Home About & Contact Useful Stuff GPG Key Free WordPress Themes Tagsapp Backup database Dovecot freebsd server imap India iOS iphone ipv6 iTunes linux Mac mediatomb mkv mySQL ping proxy PS3 squid Topics Databases (1) mySQL (1) Games (1) PS3 (1) Music (1) Operating Systems (11) FreeBSD (4) General Linux (6) Gentoo Linux (4) iOS (2) OS X (1) Ubuntu Linux (3) Traveling (11) India (11) Uncategorized (1) Meta Register Log in Entries (RSS) Comments (RSS) WordPress Tagtastic..app Backup database Dovecot freebsd server imap India iOS iphone ipv6 iTunes linux Mac mediatomb mkv mySQL ping proxy PS3 squid Links Knobelbecher Networks Holidays in Thuringia Schnitzelkuchen.de
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 http://serverfault.com/questions/61471/moving-a-mysql-slave-to-a-new-host-failed-to-open-the-relay-log posting ads with us Server Fault Questions Tags Users Badges Unanswered Ask Question _ Server Fault is http://serverfault.com/questions/151966/problem-setting-up-master-master-replication-in-mysql 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 moving a mysql slave to a new host : Failed to open the relay log up vote 1 down vote favorite I have a relay log master-master setup which I want to move to a new pair of servers (from linux to opensolaris). linux boxes names are shard1-1 and shard1-2, and osol boxes names are shard1-1-osol and shard1-2-osol. this is what I did: 1. took down mysql server on both linux boxes, copied the data to the osol boxes. 2. edited master.info on each of the osol boxes, changed master from shard1-1 to shard1-1-osol and vice versa on both machines. when I started mysql on the first osol could not find machine, I see this in the error log: looks like mysql does not like the host name change, and it's bitching about it. the mysqld-relay-bin.000707 file exists in the datadir, so it's not clear what mysql is whining about. 090902 2:26:03 InnoDB: Started; log sequence number 246 3528553673 090902 2:26:03 [Warning] Neither --relay-log nor --relay-log-index were used; so replication may break when this MySQL server acts as a slave and has his hostname changed!! Please use '--relay-log=shard1-1-osol-relay-bin' to avoid this problem. 090902 2:26:03 [ERROR] Failed to open the relay log './mysqld-relay-bin.000707' (relay_log_pos 19653396) 090902 2:26:03 [ERROR] Could not find target log during relay log initialization 090902 2:26:03 [ERROR] Failed to initialize the master info structure mysql replication share|improve this question asked Sep 2 '09 at 9:59 Omry 5501616 add a comment| 4 Answers 4 active oldest votes up vote 2 down vote accepted The server can't find the relay logs because they are named based in part upon the host name. You are going to have ALL KINDS of problems trying to bring the slave up using that technique. I suggest reinitializing the slave from the new master. Just drop all the databases on the slave, take a dump from the master using mysqldump, import it onto the slave and then use CHANGE MASTER TO in order to set up replication from the new master. It is WAY easier then trying to troubleshoot all the problems you are going to run into. share|improve this answer answ
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 Problem setting up Master-Master Replication in MySQL up vote 2 down vote favorite I am attempting to setup Master-Master Replication on two MySQL database servers. I have followed the steps in this guide, but it fails in the middle of Step 4 with SHOW MASTER STATUS; It simply returns an empty set. I get the same 3 errors in both servers' logs. MySQL errors on SQL1: [ERROR] Failed to open the relay log './sql1-relay-bin.000001' (relay_log_pos 4) [ERROR] Could not find target log during relay log initialization [ERROR] Failed to initialize the master info structure MySQL Errors on SQL2: [ERROR] Failed to open the relay log './sql2-relay-bin.000001' (relay_log_pos 4) [ERROR] Could not find target log during relay log initialization [ERROR] Failed to initialize the master info structure The errors make no sense because I'm not referencing those files in any of my configurations. I'm using Ubuntu Server 10.04 x64 and my configuration files are copied below. I don't know where to go from here or how to troubleshoot this. Please help. Thanks. /etc/mysql/my.cnf on SQL1: # # The MySQL database server configuration file. # # You can copy this to one of: # - "/etc/mysql/my.cnf" to set global options, # - "~/.my.cnf" to set user-specific options. # # One can use all long options that the program supports. # Run program with --help to get a list of available options and with # --print-defaults to see which it would actually understand and use. # # For explanations see # http://dev.mysql.com/doc/mysql/en/server-system-variables.html # This will be passed to all mysql clients # It has been reported that passwords should be enclosed with ticks/quotes # escpecially if they contain "#" chars... # Remember to edit /etc/mysql/debian.cnf when changing the socket location. [client] port = 3306 socket = /var/run/mysqld/mysqld.sock # Here is entries for some specific programs # The following values assume you have at least 32M ram # This was formally known as [safe_mysql