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D19503.diff
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D19503.diff

diff --git a/src/applications/transactions/engineextension/PhabricatorTransactionsFulltextEngineExtension.php b/src/applications/transactions/engineextension/PhabricatorTransactionsFulltextEngineExtension.php
--- a/src/applications/transactions/engineextension/PhabricatorTransactionsFulltextEngineExtension.php
+++ b/src/applications/transactions/engineextension/PhabricatorTransactionsFulltextEngineExtension.php
@@ -22,12 +22,28 @@
return;
}
- $xactions = $query
+ $query
->setViewer($this->getViewer())
->withObjectPHIDs(array($object->getPHID()))
->withComments(true)
- ->needComments(true)
- ->execute();
+ ->needComments(true);
+
+ // See PHI719. Users occasionally create objects with huge numbers of
+ // comments, which can be slow to index. We handle this with reasonable
+ // grace: at time of writing, we can index a task with 100K comments in
+ // about 30 seconds. However, we do need to hold all the comments in
+ // memory in the AbstractDocument, so there's some practical limit to what
+ // we can realistically index.
+
+ // Since objects with more than 1,000 comments are not likely to be
+ // legitimate objects with actual discussion, index only the first
+ // thousand comments.
+
+ $query
+ ->setOrderVector(array('-id'))
+ ->setLimit(1000);
+
+ $xactions = $query->execute();
foreach ($xactions as $xaction) {
if (!$xaction->hasComment()) {

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