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Bug #1751

Copy in CEPH too slow

Added by max mikheev over 9 years ago. Updated over 9 years ago.

Status:
Duplicate
Priority:
Normal
Assignee:
-
Category:
librados
Target version:
% Done:

0%

Source:
Tags:
Backport:
Regression:
No
Severity:
3 - minor
Reviewed:
Affected Versions:
ceph-qa-suite:
Pull request ID:
Crash signature (v1):
Crash signature (v2):

Description

Hi,
The copy operations for files and for rbd images are too slow. The ceph is a copy on write system I think the copies inside same ceph should be created with a same speed as a snapshots. In current stage I can create snapshot for 10GB files less than in a second and it will take more than a minute to copy it.

History

#1 Updated by Sage Weil over 9 years ago

  • Category set to librados
  • Status changed from New to Duplicate

A 'clone' operation that does copy-on-write is coming in the next couple weeks. See #988

#2 Updated by max mikheev over 9 years ago

Is clone for rbd only or for files too.
Copy of files is slow too.

#3 Updated by Sage Weil over 9 years ago

rbd only. there no plan yet for reflink(2) in the ceph filesystem.

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