Bug #27254 Single User Mode.Mysql hangs if it tries delete a ndb table
Submitted: 19 Mar 2007 10:39 Modified: 28 Mar 2007 10:50
Reporter: Serge Kozlov Email Updates:
Status: Closed Impact on me:
Category:MySQL Cluster: Cluster (NDB) storage engine Severity:S3 (Non-critical)
Version:5.1.17-bk OS:Linux (Linux FC4 64bit)
Assigned to: Tomas Ulin CPU Architecture:Any

[19 Mar 2007 10:39] Serge Kozlov
There are two mysqld nodes(1,2). Cluster goes in single user mode. Mysql client connected to mysqld(1) and other mysqld(2) has access in single user mode. Mysql(connected to 1) hangs if trying drop a ndb table or database with ndb tables.

How to repeat:
1. Start cluster with 2 mysqld
2. Connect mysql to one mysqld.
3. Create ndb table.
4. Enter single user mode for second mysqld.
5. Try drop a table in mysql connected to first mysqld.
[21 Mar 2007 9:08] Tomas Ulin
serge, this is a "known" issue which needs to be fixed, setting to verified

it is actually not a hang... a timeout happens after a while
[23 Mar 2007 9:55] Tomas Ulin
bug fix

Attachment: tmp.patch (text/x-patch), 23.06 KiB.

[23 Mar 2007 15:59] 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:


ChangeSet@1.2501, 2007-03-23 17:12:06+01:00, tomas@whalegate.ndb.mysql.com +2 -0
  BUG#27254: Single User Mode.Mysql hangs if it tries delete a ndb table
[23 Mar 2007 22:15] Tomas Ulin
telco 6.2.1
[28 Mar 2007 8:03] Tomas Ulin
bug is fixed, and bug was never in released version
[28 Mar 2007 10:50] Jon Stephens
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 bug fix. More information about accessing the source trees is available at


Documented fix in mysql-5.1.16-ndb-6.2.1 changelog.