| Bug #39404 | Core in NdbEventBuffer::deleteUsedEventOperations() | ||
|---|---|---|---|
| Submitted: | 11 Sep 2008 19:28 | Modified: | 26 Sep 2008 18:36 |
| Reporter: | Jonathan Miller | ||
| Status: | Closed | ||
| Category: | Server: ClusterRep | Severity: | S2 (Serious) |
| Version: | mysql-5.1-telco-6.2 | OS: | Linux |
| Assigned to: | Target Version: | ||
| Triage: | D1 (Critical) | ||
[24 Sep 2008 14:25]
Tomas Ulin
Bug can appear during replication. It can manifest itself in many ways.
[24 Sep 2008 14:26]
Tomas Ulin
In a release build it will typically mean that a table stops logging. In a debug build there will be an assetion and a core
[25 Sep 2008 14:21]
Bugs System
A patch for this bug has been committed. After review, it may be pushed to the relevant source trees for release in the next version. You can access the patch from: http://lists.mysql.com/commits/54518 2670 Tomas Ulin 2008-09-24 Bug #39404 Core in NdbEventBuffer::deleteUsedEventOperations()
[25 Sep 2008 14:21]
Bugs System
A patch for this bug has been committed. After review, it may be pushed to the relevant source trees for release in the next version. You can access the patch from: http://lists.mysql.com/commits/54519 2670 Tomas Ulin 2008-09-24 Bug #39404 Core in NdbEventBuffer::deleteUsedEventOperations()
[25 Sep 2008 23:12]
Tomas Ulin
fixed in next 6.2 and forward
[26 Sep 2008 18:36]
Jon Stephens
Documented in the 5.1.28-ndb-6.2.16 and 5.1.28-ndb-6.3.18 changelogs as follows:
In some cases, dropping a database on the master could cause table
logging to fail on the slave, or, when using a debug build, could cause
the slave mysqld to fail completely.
[13 Dec 2008 0:26]
Bugs System
Pushed into 6.0.7-alpha (revid:tomas.ulin@sun.com-20080924122711-7bozt1e2q10cszhp) (version source revid:jonas@mysql.com-20080925105539-wd6gbofp5alv9j93) (pib:5)
Description: I was running a set of TPC-B test using Cluster Replication setup. During the 4th run while the test was dropping the database the mysqld caught a sig 11. Back Trace follows: #0 0x0000003907e0b142 in pthread_kill () from /lib64/libpthread.so.0 #1 0x0000000000627121 in handle_segfault (sig=11) at mysqld.cc:2511 #2 <signal handler called> #3 NdbEventBuffer::deleteUsedEventOperations (this=0x45d5e60) at NdbEventOperationImpl.cpp:1432 #4 0x000000000091d4ad in NdbEventBuffer::nextEvent (this=0x45d5e60) at NdbEventOperationImpl.cpp:1363 #5 0x00000000007cdda2 in ndb_binlog_thread_func (arg=<value optimized out>) at ha_ndbcluster_binlog.cc:5334 #6 0x0000003907e06307 in start_thread () from /lib64/libpthread.so.0 #7 0x00000039072d1ded in clone () from /lib64/libc.so.6 (gdb) f 3 #3 NdbEventBuffer::deleteUsedEventOperations (this=0x45d5e60) at NdbEventOperationImpl.cpp:1432 Error log shows: /data0/cr_autotest/libexec/mysqld(my_print_stacktrace+0x39)[0x96b739] /data0/cr_autotest/libexec/mysqld(handle_segfault+0x31d)[0x6270ed] /lib64/libpthread.so.0[0x3907e0de80] /data0/cr_autotest/libexec/mysqld(_ZN14NdbEventBuffer25deleteUsedEventOperationsEv+0x35)[0 x919485] /data0/cr_autotest/libexec/mysqld(_ZN14NdbEventBuffer9nextEventEv+0x1ed)[0x91d4ad] /data0/cr_autotest/libexec/mysqld(ndb_binlog_thread_func+0xdf2)[0x7cdda2] /lib64/libpthread.so.0[0x3907e06307] /lib64/libc.so.6(clone+0x6d)[0x39072d1ded] Trying to get some variables. Some pointers may be invalid and cause the dump to abort... thd->query at (nil) is an invalid pointer thd->thread_id=1 thd->killed=NOT_KILLED How to repeat: Not sure how repeatable this is as I have only hit it once.