Hrishikesh Gadre created SOLR-9642:
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Summary: Refactor the core level snapshot cleanup mechanism to
rely on Lucene
Key: SOLR-9642
URL: https://issues.apache.org/jira/browse/SOLR-9642
Project: Solr
Issue Type: Improvement
Security Level: Public (Default Security Level. Issues are Public)
Affects Versions: 6.2
Reporter: Hrishikesh Gadre
SOLR-9269 introduced a mechanism to create/delete snapshots for a Solr core
(using Lucene IndexDeletionPolicy). The current snapshot cleanup mechanism is
based on reference counting the index files shared between multiple segments.
Since this mechanism completely skips the Lucene APIs, it is not portable (e.g.
it doesn't work on 4.10.3 version).
I propose an alternative implementation which relies exclusively on Lucene
IndexWriter (+ IndexDeletionPolicy) for cleanup.
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