Ishan Chattopadhyaya created LUCENE-7025:
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Summary: Already open IndexSearcher sees different DVs as commits
are happening
Key: LUCENE-7025
URL: https://issues.apache.org/jira/browse/LUCENE-7025
Project: Lucene - Core
Issue Type: Bug
Reporter: Ishan Chattopadhyaya
I'm hitting an issue in SOLR-5944 whereby I am seeing the dvGen of a reader
underlying an open searcher is changing when parallel commits are happening.
This happens when the reader is opened from a writer, but doesn't happen when
the reader is opened directly from a directory.
Also, *I think* I am, in Solr, seeing differences in DVs when parallel threads
make DV updates and do commits. In the attached test, I couldn't reproduce this
scenario, though.
Questions:
1) Is it a bug, or by design, that the segment readers of an open indexsearcher
has their dvGens changing? (as according to the test attached).
2) Is it possible, as I think it is happening in Solr's 5944, that the DV
values themselves could change as a result of this parallel commit happening?
Apologies, if I should have asked this at the user mailing list, instead of
opening an issue here.
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