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CirrusSearch logging lots of warnings: Invalid operand type was used: expecting an array (Searcher.php:588)
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Description

CirrusSearch is logging between 20 and 80 errors per minute:

Warning: Invalid operand type was used: expecting an array in /srv/mediawiki/php-1.28.0-wmf.23/extensions/CirrusSearch/includes/Searcher.php on line 588

Those errors started and 00:10 UTC October 28 : https://logstash.wikimedia.org/goto/1cca914e4674692f91b3ea8172096d22

Event Timeline

Gehel created this task.Oct 28 2016, 7:40 AM
Restricted Application added a subscriber: Aklapper. · View Herald TranscriptOct 28 2016, 7:40 AM
Gehel added a comment.Oct 28 2016, 8:02 AM

This might well be the same issue as T149254. I'll let @dcausse (or someone who knows better than me) close this as duplicate.

hashar added a subscriber: hashar.

I have cherry picked the patch for T149254 on the beta cluster ( https://gerrit.wikimedia.org/r/318263 on beta cluster ) and can confirm that the "Invalid operand type was used" error is gone as well.