Bug #53246 Watch shutdown can cause hanging process
Submitted: 28 Apr 2010 12:15 Modified: 28 Apr 2010 14:37
Reporter: Jonas Oreland Email Updates:
Status: Closed Impact on me:
None 
Category:MySQL Cluster: Cluster (NDB) storage engine Severity:S3 (Non-critical)
Version:mysql-5.1-telco-6.2 OS:Any
Assigned to: Jonas Oreland CPU Architecture:Any

[28 Apr 2010 12:15] Jonas Oreland 
Description:
When watchdog shutdown occurs, care must be taken to exit the process
as quickly as possible, this implies *not* to run c++-destructors

This is already fixed in 7.0 (done as part of development of ndbmtd)
This bug makes sure that this is also fixed in 6.2/6.3

How to repeat:
.

Suggested fix:
.
[28 Apr 2010 12:16] 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/106804

3095 Jonas Oreland	2010-04-28
      ndb bug#53246 - make sure to exit quickly in error situations, by calling _exit() instead of exit()
[28 Apr 2010 12:24] Jonas Oreland 
pushed to 6.2.19 and 6.3.34, already fixed in 7.x
[28 Apr 2010 14:37] Jon Stephens 
Documented fix in the NDB-6.2.19 and 6.3.34 changelogs as follows:

      When a watchdog shutdown occurred due to an error, the process 
      was not terminated quickly enough, sometimes resulting in a hang. 
      (To correct this, the internal _exit() function is now called in 
      such situations, rather than exit().)

Closed.