Bug 1104885

Summary:	Graphs fail to render due to 'IllegalArgumentException: highValue' caused by bug in bucket aggregation code
Product:	[Other] RHQ Project	Reporter:	John Sanda <jsanda>
Component:	Core Server, Storage Node	Assignee:	John Sanda <jsanda>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Mike Foley <mfoley>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	4.9	CC:	hrupp, loleary
Target Milestone:	---
Target Release:	RHQ 4.12
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:
Clones:	1104888 (view as bug list)		Environment:
Last Closed:	2014-12-15 11:35:56 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:	1104888

Description John Sanda 2014-06-04 21:43:17 UTC

Description of problem:
This is similar to bug 1015706. The problem manifests itself in the same way however; it slightly different. With bug 1015706, aggregate metrics were getting computed incorrectly, resulting in invalid metrics being stored. 

In this case the problem is in handling of query results for metrics that can be completely valid. When there is a client requesting data, we do not return the actual metrics. We break the specified date range up into 60 discrete intervals or buckets. The timestamp of each metric determines which bucket it goes into. We then compute the max/min/avg of each bucket. The aggregated buckets are what gets sent to the client. 

We have the same problem in the bucket code where the max gets calculated incorrectly.

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Comment 1 John Sanda 2014-06-04 21:43:51 UTC

I will work on data/steps to reproduce this to make testing and verification easier.

Comment 2 John Sanda 2014-06-06 13:55:47 UTC

Fix pushed to master.

commit hash: 1afd4b250

Comment 3 Heiko W. Rupp 2014-12-15 11:35:56 UTC

Bulk close of items fixed in RHQ 4.12

If you think this is not solved, then please open a *new* BZ and link to this one.