| Bug #53482 | ndbd crash if epoll_create is not supported | ||
|---|---|---|---|
| Submitted: | 7 May 2010 12:45 | Modified: | 12 May 2010 9:43 |
| Reporter: | Magnus Blåudd | Email Updates: | |
| Status: | Closed | Impact on me: | |
| Category: | MySQL Cluster: Cluster (NDB) storage engine | Severity: | S2 (Serious) |
| Version: | 6.3.34 | OS: | Any |
| Assigned to: | Magnus Blåudd | CPU Architecture: | Any |
[7 May 2010 13:07]
Magnus Blåudd
Occurs on for example RHEL3
[7 May 2010 13:09]
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/107748
[7 May 2010 13:22]
Bugs System
Pushed into 5.1.44-ndb-7.0.15 (revid:magnus.blaudd@sun.com-20100507131158-ync2mbdvh2jgrf61) (version source revid:magnus.blaudd@sun.com-20100507131158-ync2mbdvh2jgrf61) (merge vers: 5.1.44-ndb-7.0.15) (pib:16)
[10 May 2010 7:37]
Magnus Blåudd
Pushed to 6.3.34, 7.0.15 and 7.1.4
[11 May 2010 13:48]
Jon Stephens
Documented bugfix in the NDB-6.3.34, 7.0.15, and 7.1.4 changelogs, as follows:
When compiled with support for epoll but this functionality
is not available at runtime, MySQL Cluster tries to fall back to
use SELECT. However, an extra ndbout_c() call in the transporter
registry code caused ndbd to fail instead.
Closed.
[12 May 2010 9:43]
Jon Stephens
Updated changelog entry per developer feedback; it now reads:
When compiled with support for epoll but this functionality
is not available at runtime, MySQL Cluster tries to fall back to
use the select() function in its place. However, an extra
ndbout_c() call in the transporter registry code caused ndbd to
fail instead.
Closed.
Description: When MySQL CLuster has been compiled with support for 'epoll_create' but 'epoll_create' is not available during runtime it will fallback to use 'select'. Unfortunately there is a printout using ndbout which causes the ndbd so segfault becuase the ndbout module is not yet initialized. How to repeat: . Suggested fix: Remove the ndbout_c("Falling back to select"); printout, the error is already printed with 'perror' on the previous line.