Michael McCandless created LUCENE-7894:
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Summary: IndexWriter suffers temporary short-term amnesia
Key: LUCENE-7894
URL: https://issues.apache.org/jira/browse/LUCENE-7894
Project: Lucene - Core
Issue Type: Bug
Reporter: Michael McCandless
Assignee: Michael McCandless
Priority: Blocker
Fix For: master (7.0)
Nightly benchmarks had been failing to run for a while due to trunk API
changes, but when I finally fixed those, the indexer fails because
{{IW.maxDoc}} disagrees with the number of documents indexed after all threads
are done indexing.
It's sort of crazy none of our tests caught this!
I tracked down the bug; it was caused in LUCENE-7868. The bug is not as bad as
it sounds: documents are not in fact lost, it's just IW's internal accounting
for maxDoc that's temporarily incorrect until you do a refresh or commit or
close the index.
I'm marking as blocker for 7.0.
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