Bug #576 slave compiled with --debug dies (DBUG_ASSERT) with CHANGE MASTER
Submitted: 3 Jun 2003 13:25 Modified: 3 Jun 2003 14:16
Reporter: Guilhem Bichot Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Server: Replication Severity:S3 (Non-critical)
Version:4.0 OS:Any (all)
Assigned to: Guilhem Bichot CPU Architecture:Any

[3 Jun 2003 13:25] Guilhem Bichot 
Description:
See how-to-repeat, and here is the result :
mysqld: slave.cc:2453: void* handle_slave_sql(void*): Assertion `((rli->cur_log)->pos_in_file + (uint) (*(rli->cur_log)->current_pos - (rli->cur_log)->request_pos)) == rli->relay_log_pos' failed.

How to repeat:
have at least one query in the master's binlog.
slave:
reset slave;
start slave;
--wait
stop slave;
change master to relay_log_pos=4;
start slave ; -- crash.
[3 Jun 2003 14:16] Guilhem Bichot 
Thank you for your bug report. This issue has been fixed in the latest
development tree for that product. You can find more information about
accessing our development trees at 
    http://www.mysql.com/doc/en/Installing_source_tree.html

4 or less was necessary to get the bug, and only with RELAY_LOG_POS.
A non-debug mysqld would not have crashed in the DBUG_ASSERT, but may
do strange things later.