Good day :)
We've had our master/slave server running for a while now, and just
yesterday, we started getting behind.
Not entirely sure what happened, but it is getting further and furhter
behind.
(master server)
mysql> show master status\G
*************************** 1. row ***************************
File: mysql-bin.000280
Position: 58090245
Binlog_Do_DB: admin_server,baf,freeradius,radius
Binlog_Ignore_DB:
1 row in set (0.00 sec)
(slave server)
mysql> show slave status\G
*************************** 1. row ***************************
Slave_IO_State: Waiting for master to send event
Master_Host: 192.168.7.101
Master_User: slave_user
Master_Port: 3306
Connect_Retry: 60
Master_Log_File: mysql-bin.000280
Read_Master_Log_Pos: 55208258
Relay_Log_File: backup-relay-bin.000530
Relay_Log_Pos: 96663109
Relay_Master_Log_File: mysql-bin.000259
Slave_IO_Running: Yes
Slave_SQL_Running: Yes
Replicate_Do_DB: admin_server,baf,freeradius,radius
Replicate_Ignore_DB:
Replicate_Do_Table:
Replicate_Ignore_Table:
Replicate_Wild_Do_Table:
Replicate_Wild_Ignore_Table:
Last_Errno: 0
Last_Error:
Skip_Counter: 0
Exec_Master_Log_Pos: 96662972
Relay_Log_Space: 2211376614
Until_Condition: None
Until_Log_File:
Until_Log_Pos: 0
Master_SSL_Allowed: No
Master_SSL_CA_File:
Master_SSL_CA_Path:
Master_SSL_Cert:
Master_SSL_Cipher:
Master_SSL_Key:
Seconds_Behind_Master: 77473
1 row in set (0.00 sec)
Now, we are logging the freeradius packets into mysql, and like I said, it
has been running fine, up until yesterday. Any idea how the slave would
get this far behind, and not be generating any errors?
It is my understanding, that the slave only does update/insert/delete
queries, so even if there was a lot of "select" queries on the master, the
slave wouldn't see them. We are not running any queries on the slave (it
was set up for backup purposes, so we could stop the slave and backup
completely), and we haven't done a backup on the slave in a couple of days
(yeah, i know... bad bad) so there is really no reason for this.
Can anyone help/assist/point me in the right direction to figure out how to
catch the slave back up to the master? The master is not being overloaded,
it is keeping up no problem, and the backup server is 8x the server than the
application server, so it shoulnd't even be an i/o or cpu issue.
Please help! :)
Thanks in advance
Steven Staples
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