Michael Dürig created OAK-6106:
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Summary: Excessive memory usage by the caches segment references
Key: OAK-6106
URL: https://issues.apache.org/jira/browse/OAK-6106
Project: Jackrabbit Oak
Issue Type: Bug
Components: segment-tar
Reporter: Michael Dürig
Assignee: Michael Dürig
Fix For: 1.7.0, 1.8
The references of a segment to other segments are cached within
{{Segment.readReferencedSegments()}}. However caching the {{SegmentId}}
instances themselves leads to excessive heap usage as each id also keeps a
reference to its underlying segment.
I suggest to cache those references as msb, lsb pairs instead and create the
{{SegmentId}} instance on the fly when required.
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