revisit segments.gen sleeping
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Key: LUCENE-3605
URL: https://issues.apache.org/jira/browse/LUCENE-3605
Project: Lucene - Java
Issue Type: Improvement
Reporter: Robert Muir
in LUCENE-3601, i worked up a change where we intentionally crash() all
un-fsynced files
in tests to ensure that we are calling sync on files when we should.
I think this would be nice to do always (and with some fixes all tests pass).
But this is super-slow sometimes because when we corrupt the unsynced
segments.gen, it causes
SIS.read to take 500ms each time (and in checkindex for some reason we do this
twice, which seems wrong).
I can workaround this for now for tests (just do a partial crash that avoids
corrupting the segments.gen),
but I wanted to create this issue for discussion about the
sleeping/non-fsyncing of segments.gen, just
because i guess its possible someone could hit this slowness.
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