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When you have determined that there is no user error involved, and replication still either does not work at all or is unstable, it is time to send us a bug report. We need to get as much information as possible from you to be able to track down the bug. Please do spend some time and effort preparing a good bug report.
If you have a repeatable way to demonstrate the bug, please enter it into our bugs database at http://bugs.mysql.com/. If you have a phantom problem (one that you cannot duplicate "at will"), use the following procedure:
--log-slave-updates
and --log-bin
options.
They will cause the slave to log the updates that it receives in its own
binlogs.
SHOW MASTER STATUS
from the master at the time
you have discovered the problem
SHOW SLAVE STATUS
from the master at the time
you have discovered the problem
mysqlbinlog
to examine the binary logs. The following should
be helpful
to find the trouble query, for example:
mysqlbinlog -j pos_from_slave_status /path/to/log_from_slave_status | head |
Once you have collected the evidence for the phantom problem, try hard to isolate it into a separate test case first. Then enter the problem into our bugs database at http://bugs.mysql.com/ with as much information as possible.
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