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In-Portal Issue Tracker - In-Portal CMS
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Viewing Issue Advanced Details |
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ID:
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Category:
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Type:
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Reproducibility:
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Date Submitted:
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Last Update:
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1231 |
[In-Portal CMS] Caching System |
bug report |
always |
2012-03-24 15:38 |
2012-07-25 05:31 |
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Reporter:
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alex |
Platform:
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Assigned To:
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alex |
OS:
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Priority:
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normal |
OS Version:
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Status:
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closed |
Product Version:
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5.2.0-B2 |
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Product Build:
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Resolution:
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fixed |
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ETA:
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none |
Fixed in Version:
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5.2.0-B3 |
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Reference:
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https://groups.google.com/d/topic/in-portal-bugs/18XPYGD6RZg/discussion |
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Change Log Message:
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Fixes parallel cache rebuild problem again |
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Estimate Points:
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2 |
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Summary:
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0001231: Bug in parallel cache rebuild protection |
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Description:
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We've implemented parallel cache rebuild protection in 5.2.0-B1 by setting lock before creating new cache. This ensured that all other requests were receiving old cache version or just waiting for a lock to be released.
However I've found a bug in that system too, when multiple visitors, who encountered a missing/outdated cache would set lock in parallel and start rebuild process. This of course would be slightly smaller number of parallel rebuild requests then without protection added in 5.2.0-B1, but still needs to be fixed. |
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Steps To Reproduce:
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Additional Information:
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| Relationships | | parent of | 0001260 | closed (5.2.0) | alex | Broken URL Caching Mechanisms with Memcache disabled | | child of | 0001123 | closed (5.2.0) | alex | Parallel cache rebuild problem could cause high server load |
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Attached Files:
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 parallel_cache_rebuild_fix.patch (24,899) 2012-03-24 15:38
http://tracker.in-portal.org/file_download.php?file_id=1564&type=bug |
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Issue History |
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Date Modified |
Username |
Field |
Change |
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2012-07-25 05:31 |
alex |
Note Added: 0004956 |
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2012-07-25 05:31 |
alex |
Status |
resolved => closed |
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2012-04-30 09:44 |
alex |
Relationship added |
parent of 0001260 |
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2012-03-24 15:42 |
alex |
Changeset attached |
5.2.x r15227 |
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2012-03-24 15:41 |
alex |
Note Added: 0004507 |
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2012-03-24 15:41 |
alex |
Status |
reviewed and tested => resolved |
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2012-03-24 15:41 |
alex |
Fixed in Version |
=> 5.2.0-B3 |
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2012-03-24 15:41 |
alex |
Resolution |
open => fixed |
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2012-03-24 15:41 |
alex |
Assigned To |
!COMMUNITY => alex |
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2012-03-24 15:41 |
alex |
Changeset attached |
5.2.x r15226 |
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2012-03-24 15:41 |
alex |
Note Added: 0004506 |
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2012-03-24 15:41 |
alex |
Status |
needs testing => reviewed and tested |
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2012-03-24 15:41 |
alex |
Assigned To |
=> !COMMUNITY |
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2012-03-24 15:41 |
alex |
Developer |
=> alex |
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2012-03-24 15:41 |
alex |
Status |
active => needs testing |
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2012-03-24 15:40 |
alex |
Reference |
=> https://groups.google.com/d/topic/in-portal-bugs/18XPYGD6RZg/discussion |
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2012-03-24 15:38 |
alex |
Relationship added |
child of 0001123 |
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2012-03-24 15:38 |
alex |
New Issue |
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2012-03-24 15:38 |
alex |
File Added: parallel_cache_rebuild_fix.patch |
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2012-03-24 15:38 |
alex |
Change Log Message |
=> Fixes parallel cache rebuild problem again |
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2012-03-24 15:38 |
alex |
Estimate Points |
=> 2 |