Marcel Reutegger created OAK-4863:
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Summary: Reduce query batch size for deleted documents
Key: OAK-4863
URL: https://issues.apache.org/jira/browse/OAK-4863
Project: Jackrabbit Oak
Issue Type: Improvement
Components: mongomk
Reporter: Marcel Reutegger
Assignee: Marcel Reutegger
Priority: Minor
Fix For: 1.6
MongoVersionGCSupport uses the default batchSize when it queries for possibly
deleted documents. The default will initially read 100 documents and then as
many as fit into a 4MB response. Depending on the document size a couple of
thousand will fit in there and take time to process. It may happen that the
MongoDB cursor then times out and the VersionGC fails.
An easy and safe solution is to reduce the batch size to a given number of
documents.
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