Tagged Questions
3
votes
1answer
991 views
Does `Seconds_Behind_Master` show exact Slave Lag from Master?
Does Seconds_Behind_Master show the correct result?
I have also Implemented the mk-heartbeat replication monitoring.
It was showing the other result in comparison with Seconds_Behind_Master.
Which ...
1
vote
1answer
2k views
Mysql master-master replication auto flush old logs
I have mysql-5.1.41 master-master setup running on ubuntu machines and below is the configuration of a master:
skip-host-cache
skip-name-resolve
event_scheduler = ON
max_connections = 500
...
2
votes
2answers
605 views
Can we assign mysql Key_buffer_size value for particular table?
In some documents I found that we can assign key_buffer_size to myisam table. This also includes the following steps:
SET GLOBAL myisam_table.key_buffer_size = 4194304;
CACHE INDEX test.myisam_table ...
3
votes
1answer
161 views
Clarification about master slave configuration in mysql
We are planning to migrate an existing MySQL database to a new server using the MySQL replication master slave procedure.
Unfortunately this will take a lot of time so we were thinking of doing a ...
1
vote
1answer
322 views
Is there a progress indicator for OPTIMIZE TABLE progress?
MySQL 5.1.4x (Windows) | Innodb
I recently purged data from a mySQL DB (a few hundred thousand rows) and I'm planning to use
OPTIMIZE TABLE LOGTABLEFOO1,LOGTABLEFOO2,LOGTABLEFOO3;
to reduce the ...
1
vote
1answer
175 views
How to run a cold backup with Linux/tar without shutting down MySQL slave?
I run the following before tar-ing up the data directory:
STOP SLAVE;
FLUSH TABLES WITH READ LOCK;
FLUSH LOGS;
However, tar will sometimes complain that the ibdata* and ib_logfiles* files are ...
1
vote
2answers
397 views
Mysql master-master permission replication issue
I came to know it's safe to replicate mysql database to have the users and permissions replicated, from a post in ServerFault is-it-ok-to-replicate-mysql-db. I have setup master-master replication ...
0
votes
3answers
489 views
Automatic MySQL Replication Fail-over Strategy
I want to know that if replication is down due to some reason as if master is down then what strategy should be followed so that the replication is up instantly without manually intervening the ...
0
votes
0answers
114 views
Which update is faster using join or sequential?
My this question is in sequence of my previous question I asked.
I could write two solutions using Stored Procedure instead of trigger or nested-query .
Both use a helper function ...
