MySQL Bugs: #9249: NDBD crashes when mapping SHM segment w/o correct permission

Bug #9249	NDBD crashes when mapping SHM segment w/o correct permission
Submitted:	17 Mar 2005 13:21	Modified:	13 Oct 2005 10:48
Reporter:	Johan Andersson	Email Updates:
Status:	Closed	Impact on me:	None
Category:	MySQL Cluster: Cluster (NDB) storage engine	Severity:	S2 (Serious)
Version:	4.1.10	OS:	Any (*)
Assigned to:	Tomas Ulin	CPU Architecture:	Any

Description:
A ndbd is colocated with a mysqld and interconnected with SHM

The ndbd is started by user root
The mysqld is started as user mysql using the mysqld_safe script
When mysqld tries to connect then ndbd crashes without a trace or error message.

How to repeat:
Setup a config with a shm connection between ndbd and mysqld
start ndbd:
ndbd --ndb-shm &
start mysqld:
mysqld_safe --user=mysql ....

Suggested fix:
Perhaps have a ndbd_safe script that starts ndbd as another user.

verified w/4.1.11 from bk

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/internals/30906

fixed in 5.0.15, not in 4.1

Thank you for your bug report. This issue has been committed to our
source repository of that product and will be incorporated into the
next release.

If necessary, you can access the source repository and build the latest
available version, including the bugfix, yourself. More information 
about accessing the source trees is available at
    http://www.mysql.com/doc/en/Installing_source_tree.html

Additional info:

Documented in 5.0.15 changelog. Closed.