MySQL Bugs: #42545: Incorrectly handled node failure in ordered index scan, mysqld signal 11

Bug #42545	Incorrectly handled node failure in ordered index scan, mysqld signal 11
Submitted:	2 Feb 2009 14:52	Modified:	3 Feb 2009 12:16
Reporter:	Jonas Oreland	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Cluster: Cluster (NDB) storage engine	Severity:	S3 (Non-critical)
Version:	6.*	OS:	Any
Assigned to:	Jonas Oreland	CPU Architecture:	Any

Description:
If node-failure happen between
NdbIndexScanOperation::readTuples(SF_OrderBy) and NdbTransaction::Execute
error condition is not correctly handled on subsequent nextResult() call
causing a NULL-pointer to be deferenced

This was introduced as part of NdbRecord-work

How to repeat:
new testprg

Suggested fix:
check error condition

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/64919

2805 Jonas Oreland	2009-02-02
      ndb - bug#42545 - nf inbetween readTuples() and execute() could lead to signal 11 for ordered_index_scans

Pushed into 5.1.31-ndb-6.3.22 (revid:jonas@mysql.com-20090202193744-0jzoaa8txx5rvni1) (version source revid:jonas@mysql.com-20090202193744-0jzoaa8txx5rvni1) (merge vers: 5.1.31-ndb-6.3.22) (pib:6)

Pushed into 5.1.31-ndb-6.4.3 (revid:jonas@mysql.com-20090202194525-id8uvo3fd65xz2va) (version source revid:jonas@mysql.com-20090202194525-id8uvo3fd65xz2va) (merge vers: 5.1.31-ndb-6.4.3) (pib:6)

Pushed into 5.1.31-ndb-6.2.17 (revid:jonas@mysql.com-20090202193228-13gdlnb8xyk5b21e) (version source revid:jonas@mysql.com-20090202193228-13gdlnb8xyk5b21e) (merge vers: 5.1.31-ndb-6.2.17) (pib:6)

Documented in the NDB-6.2.17, 6.3.22, and 6.4.3 changelogs as follows:

        A data node failure that occurred between calls to
        NdbIndexScanOperation::readTuples(SF_OrderBy) and
        NdbTransaction::Execute() was not correctly handled; a subsequent 
        call to nextResult() call caused a NULL pointer to be deferenced, 
        leading to a segfault in mysqld.

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/65578

3248 Martin Skold	2009-02-09 [merge]
      Merge

Pushed into 6.0.10-alpha (revid:alik@sun.com-20090210194937-s7xshv5l3m1v7wi9) (version source revid:tomas.ulin@sun.com-20090204130805-wb1egwdby2y0cnti) (merge vers: 6.0.10-alpha) (pib:6)