Bug 1584829 – objects in cache never refresh after rgw_cache_expiry_interval

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Bug 1584829 - objects in cache never refresh after rgw_cache_expiry_interval

Summary:	objects in cache never refresh after rgw_cache_expiry_interval

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Ceph Storage
Classification:	Red Hat
Component:	RGW (Show other bugs)
Sub Component:
Version:	2.5
Hardware:	x86_64 Linux

Priority	unspecified Severity medium
Target Milestone:	z1
Target Release:	2.5
Assigned To:	Matt Benjamin (redhat)
QA Contact:	Tejas
Docs Contact:	Aron Gunn

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:	1536401 1585748 1585750
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Reported:	2018-05-31 14:04 EDT by Justin Bautista
Modified:	2018-07-26 14:08 EDT (History)
CC List:	12 users (show)

See Also:
Fixed In Version:	RHEL: ceph-10.2.10-22.el7cp Ubuntu: ceph_10.2.10-19redhat1
Doc Type:	Bug Fix
Doc Text:	.Cache entries were not refreshing as expected The new time-based metadata cache entry expiration logic did not include logic to update the expiration time on already-cached entries being updated in place. Cache entries became permanently stale after expiration, leading to a performance regression as metadata objects were effectively not cached and always read from the cluster. Logic was added to update the expiration time of cached entries when updated.
Story Points:	---
Clone Of:
Clones:	1585748 1585750 (view as bug list)
Environment:
Last Closed:	2018-07-26 14:06:48 EDT
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Ceph Project Bug Tracker	24346	None	None	None	2018-05-31 14:04 EDT
Red Hat Product Errata	RHSA-2018:2261	None	None	None	2018-07-26 14:08 EDT

Groups: None (edit)

Description Justin Bautista 2018-05-31 14:04:21 EDT

Creating BZ based on upstream pull request/tracker: 
https://github.com/ceph/ceph/pull/22324

ObjectCacheInfo::time_added is only initialized on first insert. so once an entry reaches its rgw_cache_expiry_interval, it can't be refreshed until the lru removes its entry entirely

Comment 21 errata-xmlrpc 2018-07-26 14:06:48 EDT

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2018:2261

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