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Bug #64805

open

rgw: dynamic resharding will block write op

Added by changzhi tan 2 months ago. Updated about 1 month ago.

Status:
Fix Under Review
Priority:
Normal
Assignee:
-
Target version:
-
% Done:

0%

Source:
Tags:
reshard
Backport:
Regression:
No
Severity:
1 - critical
Reviewed:
Affected Versions:
Ceph - v18.2.1
ceph-qa-suite:
rgw
Pull request ID:
56597
Crash signature (v1):
Crash signature (v2):

Description

When rgw dynamic resharding is triggered, writing will be blocked. I think this is unreasonable and may have a serious impact in the production environment. Can we optimize this part of the code to reduce the impact of reshard on performance?

In addition, Red Hat has such an article. In its tests, dynamic sharding did not block io,
https://www.redhat.com/en/blog/ceph-rgw-dynamic-bucket-sharding-performance-investigation-and-guidance

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