Bug 1037508

Summary:	sw-system-snapshot blows up UNDO_TBS and failes because of to large transactions
Product:	Red Hat Satellite 5	Reporter:	Luc de Louw <ldelouw>
Component:	Server	Assignee:	Jan Dobes <jdobes>
Status:	CLOSED DEFERRED	QA Contact:	Red Hat Satellite QA List <satqe-list>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	560	CC:	tlestach
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:	2018-04-09 11:04:36 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:	924189

Description Luc de Louw 2013-12-03 09:59:56 UTC

Description of problem:
A Satellite Server which is in use since years having many systems subscribed to it tends to have a huge amount of snapshots stored in the database.

A solution is to run sw-system-snapshot.


Version-Release number of selected component (if applicable):
spacewalk-utils-2.0.2-12

How reproducible:
Always

Steps to Reproduce:
1. Register a few hundreds or thousands of server and let the snapshot tables grow 
2. sw-system-snapshot -u admin -p password --start-date=200001010000 --end-date=201312030000 --all --delete


Actual results:
ISE 500 and a python traceback, while the database query is still running for several hours. Eventually the database transaction failes and a roll-back occures. 

The root cause seems that the deletion of all data is done in one single and huge transaction.


Expected results:
Smaller transactions (more commits) which 1. do not blow up UNDO_TBS and 2. Having at last some transactions done when a timeout occures.



Additional info:
It seems that the tables affected have no or wrong indexes.

Comment 4 Tomas Lestach 2018-04-09 11:04:36 UTC

We have re-reviewed this bug, as part of an ongoing effort to improve Satellite/Proxy feature and bug updates, review and backlog.

This is a low priority bug and has no currently open customer cases. While this bug may still valid, we do not see it being implemented prior to the EOL of the Satellite 5.x product. As such, this is being CLOSED DEFERRED. 

Closing now to help set customer expectations as early as possible. You are welcome to re-open this bug if needed.