I have MySQL Replication working between two servers in master-master mode.
Replication has been working from day 1.
The IO Thread and the SQL Thread has never died. However, the Slave SQL thread dies very, very often.
The log only says:
120913 17:58:50 [Note] Slave I/O thread killed while reading event 120913 17:58:50 [Note] Slave I/O thread exiting, read up to log 'mysql-bin.004109', position 101146947 120913 17:58:50 [Note] Error reading relay log event: slave SQL thread was killed
I've Googled for the problem, but found no indication of what to look for or how to resolve the issue.
What could be causing the thread to die?