Bug #64480: metadata cache races on deletes - rgw - Ceph

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Bug #64480

open

metadata cache races on deletes

Added by Casey Bodley 3 months ago. Updated 2 months ago.

Status:

Pending Backport

Priority:

High

Assignee:

Casey Bodley

Target version:

% Done:

Source:

Tags:

cache metadata backport_processed

Backport:

quincy reef squid

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

ceph-qa-suite:

Pull request ID:

55634

Crash signature (v1):

Crash signature (v2):

Description

RGWSI_SysObj_Cache::remove() invalidates the cached entry before issuing the RGWSI_SysObj_Core::remove() call that sends the actual librados delete op

this means that a racing call to RGWSI_SysObj_Cache::read() may successfully read the object from rados and repopulate the cache. subsequent reads will continue to return cached data after the librados delete succeeds

Related issues 3 (2 open — 1 closed)