Ishan Chattopadhyaya created SOLR-13695:
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Summary: SPLITSHARD (link), followed by DELETESHARD of parent
shard causes data loss
Key: SOLR-13695
URL: https://issues.apache.org/jira/browse/SOLR-13695
Project: Solr
Issue Type: Improvement
Security Level: Public (Default Security Level. Issues are Public)
Reporter: Ishan Chattopadhyaya
Assignee: Ishan Chattopadhyaya
One of my clients experienced data loss with the following sequence of
operations:
1) SPLITSHARD with method as "link".
2) DELETESHARD of the parent (inactive) shard.
3) Query for documents in the subshards, seems like both subshards have 0
documents.
Proposing a fix (after offline discussion with [~noble.paul]) based on running
FORCEMERGE after SPLITSHARD (such that segments are rewritten), and not letting
DELETESHARD delete the data directory until the FORCEMERGE operations finish.
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