backup driver can save inefficiently compressed chunks
Bug #1462268 reported by
Tom Barron
This bug affects 1 person
| Affects | Status | Importance | Assigned to | Milestone | |
|---|---|---|---|---|---|
| Cinder |
Fix Released
|
Medium
|
Tom Barron | ||
Bug Description
With the "chunked" backup drivers (currently Swift and NFS), we save backup chunks even when the compressed length is not a gain over the original, uncompressed length.
With incremental backups, where chunks can be built from short "extents", the likelihood of this situation has significantly increased.
| Changed in cinder: | |
| assignee: | nobody → Tom Barron (tpb) |
| status: | New → In Progress |
| Changed in cinder: | |
| importance: | Undecided → Medium |
Revision history for this message
| OpenStack Infra (hudson-openstack) wrote Fix merged to cinder (master) | #1 |
| Changed in cinder: | |
| status: | In Progress → Fix Committed |
| Changed in cinder: | |
| milestone: | none → liberty-1 |
| status: | Fix Committed → Fix Released |
| Changed in cinder: | |
| milestone: | liberty-1 → 7.0.0 |
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Reviewed: https:/
Committed: https:/
Submitter: Jenkins
Branch: master
commit fc5affbe7570990
Author: Tom Barron <email address hidden>
Date: Thu May 7 15:46:06 2015 -0400
Handle ineffective backup compression
Don't compress chunks when compressed length is not a gain over
original, uncompressed length.
With incremental backups, where chunks can be built from short
"extents", the likelihood of this situation has significantly
increased.
Closes-Bug: 1462268
Change-Id: Id960cb22ae74f1