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How long replication takes?
Posted by: Martin Schmidt
Date: December 06, 2004 03:49AM

I have build up a simple master - slave configuration.
Sometimes (i can't reproduce this behaviour) replication doesn't do anything for about 5-6 minutes. The 'show slave status' statement is ok, the I/O thread and slave thread are running.

My question: Why does replication took so long and how long can it take maximal, is there any parameter i have to set properly?

Greetings

Martin Schmidt

I'm using mysql version 4.0.18 and have the following configuration:

master:

[mysqld]
server-id = 110

master-host = x.x.x.x
master-user = xxxx
master-password = xxxx
master-port = 3306

master-connect-retry = 5

skip-slave-start

log-slave-updates
log-bin
log-bin=/var/lib/mysql/log-bin
log-bin-index=/var/lib/mysql/bin-log.index
max-binlog-size=32768K

master-info-file=/var/lib/mysql/master.info

relay-log=/var/lib/mysql/relay-bin
relay-log-index=/var/lib/mysql/relay-bin-log.index
relay-log-info-file=/var/lib/mysql/relay-log.info
max-relay-log-size=16384K

replicate-ignore-db=mysql
replicate-ignore-db=test

max_allowed_packet=768M
max_connections=256

slave:

[mysqld]
server-id = 111

master-host = x.x.x.x
master-user = xxxx
master-password = xxxx
master-port = 3306

master-connect-retry = 5

skip-slave-start

log-slave-updates
log-bin
log-bin=/var/lib/mysql/log-bin
log-bin-index=/var/lib/mysql/bin-log.index
max-binlog-size=32768K

master-info-file=/var/lib/mysql/master.info

relay-log=/var/lib/mysql/relay-bin
relay-log-index=/var/lib/mysql/relay-bin-log.index
relay-log-info-file=/var/lib/mysql/relay-log.info
max-relay-log-size=16384K

replicate-ignore-db=mysql
replicate-ignore-db=test

max_allowed_packet=768M
max_connections=256

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