Bug 862203
| Summary: | spacewalk-remove-channel caused deadlock while "delete from rhnPackage where id = 1554" | ||
|---|---|---|---|
| Product: | [Community] Spacewalk | Reporter: | Jan Hutař <jhutar> |
| Component: | Server | Assignee: | Jan Pazdziora (Red Hat) <jpazdziora> |
| Status: | CLOSED WONTFIX | QA Contact: | Red Hat Satellite QA List <satqe-list> |
| Severity: | unspecified | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 1.8 | CC: | jpazdziora |
| Target Milestone: | --- | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2012-10-13 11:14:37 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 871344 | ||
(In reply to comment #0) > > Expected results: > Should either print an nice error with some advice on how to proceed or > manage to its job somehow. If we find ourselves refactoring the repo generation code again, we can take this situation into account. However, I don't see us changing code for this specific sequence of operations. |
Description of problem: Deleting of channel while its repodata are generated might cause DB deadlock. Version-Release number of selected component (if applicable): SWnightly@PostgreSQL as of 2012-09-30 How reproducible: rarely Steps to Reproduce: 1. Create channel with some content 2. Attempt to delete it right after previous step using spacewalk-remove-channel Actual results: Traceback of spacewalk-remove-channel: # spacewalk-remove-channel -c <some_channel_I_have_just_created> -u [...] Deleting package metadata (7): ________________________________________ Removing: ERROR: unhandled exception occurred: (deadlock detected DETAIL: Process 19046 waits for ShareLock on transaction 62566; blocked by process 18918. Process 18918 waits for ShareLock on transaction 62574; blocked by process 19046. HINT: See server log for query details. ). Traceback (most recent call last): File "/usr/bin/spacewalk-remove-channel", line 560, in <module> sys.exit(main() or 0) File "/usr/bin/spacewalk-remove-channel", line 147, in main skip_channels=options.skip_channels) File "/usr/bin/spacewalk-remove-channel", line 305, in delete_channels _delete_rpms(rpms_ids) File "/usr/bin/spacewalk-remove-channel", line 477, in _delete_rpms _delete_rpm_group(toDel[:group]) File "/usr/bin/spacewalk-remove-channel", line 507, in _delete_rpm_group count = h.executemany(package_id=packageIds) File "/usr/lib/python2.6/site-packages/spacewalk/server/rhnSQL/sql_base.py", line 172, in executemany return apply(self._execute_wrapper, (self._executemany, ) + p, kw) File "/usr/lib/python2.6/site-packages/spacewalk/server/rhnSQL/driver_postgresql.py", line 282, in _execute_wrapper retval = apply(function, p, kw) File "/usr/lib/python2.6/site-packages/spacewalk/server/rhnSQL/driver_postgresql.py", line 318, in _executemany self._real_cursor.executemany(self.sql, all_kwargs) TransactionRollbackError: deadlock detected DETAIL: Process 19046 waits for ShareLock on transaction 62566; blocked by process 18918. Process 18918 waits for ShareLock on transaction 62574; blocked by process 19046. HINT: See server log for query details. PostgreSQL DB log: [...] LOG: unexpected EOF on client connection LOG: unexpected EOF on client connection ERROR: deadlock detected DETAIL: Process 19046 waits for ShareLock on transaction 62566; blocked by process 18918. Process 18918 waits for ShareLock on transaction 62574; blocked by process 19046. Process 19046: delete from rhnPackage where id = 1554 Process 18918: update rhnPackageRepodata set primary_xml = $1 where package_id = $2 HINT: See server log for query details. STATEMENT: delete from rhnPackage where id = 1554 LOG: unexpected EOF on client connection LOG: unexpected EOF on client connection [...] Expected results: Should either print an nice error with some advice on how to proceed or manage to its job somehow. Additional info: Thanks to Tomas L. for identifying the cause of the issue.