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From Michael Dürig (JIRA) <j...@apache.org>
Subject [jira] [Created] (OAK-8066) Nodes with many direct children can lead to OOME when saving
Date Thu, 21 Feb 2019 08:36:00 GMT
Michael Dürig created OAK-8066:
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             Summary: Nodes with many direct children can lead to OOME when saving
                 Key: OAK-8066
                 URL: https://issues.apache.org/jira/browse/OAK-8066
             Project: Jackrabbit Oak
          Issue Type: Improvement
          Components: segment-tar
            Reporter: Michael Dürig
            Assignee: Michael Dürig


{{DefaultSegmentWriter}} keeps a map of [child nodes|https://github.com/apache/jackrabbit-oak/blob/trunk/oak-segment-tar/src/main/java/org/apache/jackrabbit/oak/segment/DefaultSegmentWriter.java#L805]
of a node being written. This can lead to high memory consumption in the case where many child
nodes are added at the same time. The latter could happen in the case where a node needs to
be rewritten because of an increase in the GC generation from a concurrently completed revision
garbage collection.



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