| Bug #43107 | merlin 2.0.4.7138 stack overflow error | ||
|---|---|---|---|
| Submitted: | 23 Feb 2009 12:11 | Modified: | 22 May 2009 8:23 |
| Reporter: | Roger David Nay | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Enterprise Monitor | Severity: | S3 (Non-critical) |
| Version: | 2.0.4.7138 | OS: | Any |
| Assigned to: | Darren Oldag | CPU Architecture: | Any |
[23 Feb 2009 12:11]
Roger David Nay
[23 Feb 2009 12:13]
MySQL Verification Team
Stack overflow messages
Attachment: stackoverflow.rtf (application/rtf, text), 77.95 KiB.
[26 Feb 2009 15:20]
Simon Mudd
Received 8 more stack dumps today which I have to include as files as they don't fit here. I'll include 1, if you want them all let me know. I guess this may be related to viewing more graphs over a longer time period (1 week as we don't have more data), but this may be wrong.
[26 Feb 2009 15:24]
Simon Mudd
Finally included 3 dumps.
Attachment: dumps.tar.gz (application/x-gzip, text), 12.10 KiB.
[3 Mar 2009 10:28]
Simon Mudd
We are still getting stack overflows. It seems mainly related to viewing graphs. Today we had 7 at around the same time 9:53. They are too large to paste into this comment field. So the problem is not a one off. We also had to restart tomcat to resolve some responsiveness problems. How do you want me to send these stack traces as copy/pasting from the mail messages that merlin sends is a bit tedious.
[10 Mar 2009 19:42]
Darren Oldag
Reproduced in a test case where, if entities are not in hibernate L2 cache, it gets into an infinite loop/recursion trying to load the server graph object(s).
[10 Mar 2009 21:20]
Darren Oldag
revision-id: oldag@mysql.com-20090310211644-waq2x0i8zzhr1ul6 parent: mark@mysql.com-20090303204420-3dca795wm19af9zt committer: Darren L. Oldag <oldag@mysql.com> branch nick: Trunk timestamp: Tue 2009-03-10 16:16:44 -0500 message: http://bugs.mysql.com/bug.php?id=43107 due to an outstanding hibernate issue, http://opensource.atlassian.com/projects/hibernate/browse/EJB-225, we have to force a lazy relationship inside an embedded composite primary key. otherwise, hibernate goes into an infinite recursion trying to load one of the relationships.
[10 Mar 2009 23:12]
Darren Oldag
patches pushed to both 2.0 maintenance and trunk (current 2.1) trees.
[12 Mar 2009 2:22]
Keith Russell
Patch installed in version 2.0.5.7152.
[12 Mar 2009 15:49]
Bill Weber
verified fixed in build 2.0.5.7152
[22 May 2009 8:23]
Tony Bedford
An entry has been added to the 2.0.5 changelog: MySQL Enterprise Monitor generated a stack overflow. This was as a result of a bug in Hibernate, which caused Hibernate to enter infinite recursion while trying to load a relationship.
