Fatal: Class 'MessageIndexException' not found
Closed, ResolvedPublicPRODUCTION ERROR
Actions

Description

Error message

Fatal error: Class 'MessageIndexException' not found

Stack Trace

#0 /srv/mediawiki/php-1.35.0-wmf.34/extensions/Translate/utils/MessageIndexRebuildJob.php(47): MessageIndex->rebuild(double)
#1 /srv/mediawiki/php-1.35.0-wmf.34/extensions/Translate/utils/MessageHandle.php(182): MessageIndexRebuildJob->run()
#2 /srv/mediawiki/php-1.35.0-wmf.34/extensions/Translate/ttmserver/ElasticSearchTTMServer.php(248): MessageHandle->isValid()
#3 /srv/mediawiki/php-1.35.0-wmf.34/extensions/Translate/ttmserver/TTMServerMessageUpdateJob.php(308): ElasticSearchTTMServer->update(MessageHandle, NULL)
#4 /srv/mediawiki/php-1.35.0-wmf.34/extensions/Translate/ttmserver/TTMServerMessageUpdateJob.php(257): TTMServerMessageUpdateJob->updateItem(ElasticSearchTTMServer, MessageHandle, NULL, boolean)
#5 /srv/mediawiki/php-1.35.0-wmf.34/extensions/Translate/ttmserver/TTMServerMessageUpdateJob.php(157): TTMServerMessageUpdateJob->runCommand(ElasticSearchTTMServer)
#6 /srv/mediawiki/php-1.35.0-wmf.34/extensions/Translate/ttmserver/TTMServerMessageUpdateJob.php(115): TTMServerMessageUpdateJob->runCommandWithRetry(string)
#7 /srv/mediawiki/php-1.35.0-wmf.34/extensions/EventBus/includes/JobExecutor.php(80): TTMServerMessageUpdateJob->run()
#8 /srv/mediawiki/rpc/RunSingleJob.php(76): MediaWiki\Extension\EventBus\JobExecutor->execute(array)
#9 {main}

Impact

An uncommon code path fails with a fatal error due to missing autoloader entry. With the autoloader entry it will throw an exception that may or not be caught by the job queue. Some secondary data (translation memory, etc.) may get out of date (but that would be the case regardless).

Notes

This was caused by recent work in T221119: "This namespace is reserved for content page translations" when trying to translate a recently created translation unit and there is a follow-up patch to address the root causes.

Details

	Subject	Repo	Branch	Lines +/-
	Add forgotten autoload entry for MessageIndexException	mediawiki/extensions/Translate	wmf/1.35.0-wmf.34	+1 -0
	Add forgotten autoload entry for MessageIndexException	mediawiki/extensions/Translate	master	+1 -0

Customize query in gerrit

Related Objects
Search...

Status	Subtype	Assigned	Task
Resolved		ovasileva	T252800 Regression: Option add links in other languages has disappeared
Resolved	Release	• mmodell	T253022 1.35.0-wmf.34 deployment blockers
Resolved	PRODUCTION ERROR	Nikerabbit	T253748 Fatal: Class 'MessageIndexException' not found

Event Timeline

Krinkle created this task.May 27 2020, 12:43 PM

Restricted Application added a subscriber: Aklapper. · View Herald TranscriptMay 27 2020, 12:43 PM

Krinkle added a parent task: T253022: 1.35.0-wmf.34 deployment blockers.May 27 2020, 12:43 PM

I believe that there is no significant impact. Previously it would fail a bit later due to uncaught exception. The stack trace looks curious though, I will investigate.

Change 599013 had a related patch set uploaded (by Nikerabbit; owner: Nikerabbit):
[mediawiki/extensions/Translate@master] Add forgotten autoload entry for MessageIndexException

https://gerrit.wikimedia.org/r/599013

gerritbot added a project: Patch-For-Review.May 27 2020, 1:08 PM

Looks like these are coming from MediaWiki.org.

		// Do another check that the group actually exists
		$group = $this->getGroup();
		if ( !$group ) {
			$warning = "MessageIndex is out of date – refers to unknown group {$groups[0]}. ";
			$warning .= 'Doing a rebuild.';
			wfWarn( $warning );
			MessageIndexRebuildJob::newJob()->run();

			return false;
		}

I don't see that message in Logstash. @Krinkle any idea if wfWarn output is logged anywhere? Hard to debug without.

I think they are logged on debug level, so probably not in logstash. The logs on mwlog seem only go about 6 hours back currently so not possible to find there either.

I guess I will make it a proper log item that goes to Logstash.

Nikerabbit edited projects, added Language-Team (Language-2020-Focus-Sprint); removed Language-Team.May 27 2020, 1:27 PM

As a train blocker

Restricted Application added a subscriber: Liuxinyu970226. · View Herald TranscriptMay 27 2020, 1:30 PM

I'm taking the follow-up work to T221119: "This namespace is reserved for content page translations" when trying to translate a recently created translation unit.

Change 599027 had a related patch set uploaded (by Nikerabbit; owner: Nikerabbit):
[mediawiki/extensions/Translate@wmf/1.35.0-wmf.34] Add forgotten autoload entry for MessageIndexException

https://gerrit.wikimedia.org/r/599027

Would anyone be willing to deploy the backported fix https://gerrit.wikimedia.org/r/c/mediawiki/extensions/Translate/+/599027 ?

Change 599013 merged by jenkins-bot:
[mediawiki/extensions/Translate@master] Add forgotten autoload entry for MessageIndexException

https://gerrit.wikimedia.org/r/599013

ReleaseTaggerBot added a project: MW-1.35-notes (1.35.0-wmf.35; 2020-06-02).May 27 2020, 2:00 PM

Nikerabbit updated the task description. (Show Details)May 27 2020, 3:23 PM

@Nikerabbit: Sure I can deploy it

Change 599027 merged by jenkins-bot:
[mediawiki/extensions/Translate@wmf/1.35.0-wmf.34] Add forgotten autoload entry for MessageIndexException

https://gerrit.wikimedia.org/r/599027

Mentioned in SAL (#wikimedia-operations) [2020-05-27T17:32:25Z] <twentyafterfour@deploy1001> Synchronized php-1.35.0-wmf.34/extensions/Translate/: Deploy https://gerrit.wikimedia.org/r/#/c/mediawiki/extensions/Translate/+/599027/ to wmf.34 refs T253748 and T253022 (duration: 01m 07s)

ReleaseTaggerBot edited projects, added MW-1.35-notes (1.35.0-wmf.34; 2020-05-26); removed MW-1.35-notes (1.35.0-wmf.35; 2020-06-02).May 27 2020, 6:00 PM

In T253748#6169918, @Stashbot wrote:

Mentioned in SAL (#wikimedia-operations) [2020-05-27T17:32:25Z] <twentyafterfour@deploy1001> Synchronized php-1.35.0-wmf.34/extensions/Translate/: Deploy https://gerrit.wikimedia.org/r/#/c/mediawiki/extensions/Translate/+/599027/ to wmf.34 refs T253748 and T253022 (duration: 01m 07s)

Deployed, not currently seen in logstash, may reopen if it recurs

Maintenance_bot removed a project: Patch-For-Review.May 27 2020, 6:10 PM

KartikMistry moved this task from In Progress to Done on the Language-Team (Language-2020-Focus-Sprint) board.May 28 2020, 12:54 PM

Fatal: Class 'MessageIndexException' not foundClosed, ResolvedPublicPRODUCTION ERRORActions