jenkins-bot has submitted this change and it was merged. (
https://gerrit.wikimedia.org/r/393945 )
Change subject: Cache anti-stampede improvements
......................................................................
Cache anti-stampede improvements
Should prevent cache update race conditions.
Bug: T181567
Change-Id: I7d472cc23a45fd0a1c134b369ccd671cc1d5acee
---
M includes/Stats.php
1 file changed, 7 insertions(+), 1 deletion(-)
Approvals:
jenkins-bot: Verified
Halfak: Looks good to me, approved
diff --git a/includes/Stats.php b/includes/Stats.php
index 777fb2c..2b9922b 100644
--- a/includes/Stats.php
+++ b/includes/Stats.php
@@ -113,7 +113,13 @@
$ttl =
WANObjectCache::TTL_MINUTE;
return [];
}
- }
+ },
+ [
+ // Try to only let one datacenter
thread manage cache updates at a time
+ 'lockTSE' => 10,
+ // Avoid querying cache servers
multiple times in a web request
+ 'pcTTL' =>
WANObjectCache::TTL_PROC_LONG,
+ ]
);
return $result;
} else {
--
To view, visit https://gerrit.wikimedia.org/r/393945
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Gerrit-MessageType: merged
Gerrit-Change-Id: I7d472cc23a45fd0a1c134b369ccd671cc1d5acee
Gerrit-PatchSet: 2
Gerrit-Project: mediawiki/extensions/ORES
Gerrit-Branch: master
Gerrit-Owner: Awight <[email protected]>
Gerrit-Reviewer: Halfak <[email protected]>
Gerrit-Reviewer: Krinkle <[email protected]>
Gerrit-Reviewer: Ladsgroup <[email protected]>
Gerrit-Reviewer: Legoktm <[email protected]>
Gerrit-Reviewer: jenkins-bot <>
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