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Bug #51648 DBUG_SYNC_POINT is not defined on all platforms and mtr cant pre-check that

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DBUG_SYNC_POINT has at least one strong limitation that it's not defined
on all platforms. It has issues cooperating with @@debug.
All in all its functionality is superseded by DEBUG_SYNC facility and
there is no reason to maintain the old less flexible one.

Fixed with adding debug_sync_set_action() function as a facility to set up
a sync-action in the server sources code and re-writing existing simulations
(found 3) to use it.
Couple of tests have been reworked as well.

The patch offers a pattern for setting sync-points in replication threads
where the standard DEBUG_SYNC does not suffice to reach goals.
This commit is contained in:
Andrei Elkin
2010-03-19 11:06:40 +02:00
parent 3f4d8edb84
commit 30df18909c
11 changed files with 152 additions and 143 deletions
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sql/sql_repl.cc
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@ -1711,7 +1711,6 @@ int log_loaded_block(IO_CACHE* file)
if (mysql_bin_log.write(&b))
DBUG_RETURN(1);
lf_info->wrote_create_file= 1;
DBUG_SYNC_POINT("debug_lock.created_file_event",10);
}
}
DBUG_RETURN(0);