Bug 1420405

Summary:	Cold Merge: Reduce base volume size after cold merge
Product:	[oVirt] vdsm	Reporter:	Ala Hino <ahino>
Component:	Core	Assignee:	Ala Hino <ahino>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Carlos Mestre González <cmestreg>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	4.19.0	CC:	amureini, bugs, tnisan
Target Milestone:	ovirt-4.1.2	Flags:	rule-engine: ovirt-4.1+ rule-engine: exception+
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
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Last Closed:	2017-05-23 08:20:10 UTC	Type:	Bug
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oVirt Team:	Storage	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1443147

Description Ala Hino 2017-02-08 15:05:22 UTC

Description of problem:
During cold merge, base volume size is extended to maximum, i.e. by top volume size + vol-chunk-size. This is a worst case calculation.
After cold merge completes we have to reduce base volume size.

Steps to Reproduce:
1. Run cold merge
2.
3.

Actual results:
Base is extended by top's size

Expected results:
Base to be extend by data in top volume +/- 1gb

Comment 1 Carlos Mestre González 2017-04-28 17:23:07 UTC

Checked multiple cold merges, base volume is extended by 1gb chunks
rhevm-4.1.2-0.1.el7.noarch