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https://issues.apache.org/jira/browse/LUCENE-7414?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Robert Muir updated LUCENE-7414:
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Attachment: LUCENE-7414.patch
> TestUtil.checkIterator can make tests very slow.
> ------------------------------------------------
>
> Key: LUCENE-7414
> URL: https://issues.apache.org/jira/browse/LUCENE-7414
> Project: Lucene - Core
> Issue Type: Bug
> Reporter: Robert Muir
> Attachments: LUCENE-7414.patch
>
>
> This is used e.g. in assertingcodec and does various checks that an iterator
> is well-behaved, but checking for the UOE on each element makes indexing in
> tests too costly.
> It is enough to just check for the first element?
> Here is an example seed i hit on accident. It indexes quite a few docs
> (should probably, separately be marked a slow or nightly test), and
> consistently takes ~ 320 seconds on master.
> {noformat}
> ant test -Dtestcase=TestBoolean2 -Dtests.slow=true
> -Dtests.seed=DEE69D15C462C3A8
> [junit4] Started J0 PID(14619@localhost).
> [junit4] Suite: org.apache.lucene.search.TestBoolean2
> [junit4] HEARTBEAT J0 PID(14619@localhost): 2016-08-16T12:20:42, stalled
> for 71.5s at: TestBoolean2 (suite)
> [junit4] HEARTBEAT J0 PID(14619@localhost): 2016-08-16T12:21:42, stalled
> for 131s at: TestBoolean2 (suite)
> [junit4] HEARTBEAT J0 PID(14619@localhost): 2016-08-16T12:22:42, stalled
> for 191s at: TestBoolean2 (suite)
> [junit4] HEARTBEAT J0 PID(14619@localhost): 2016-08-16T12:23:42, stalled
> for 251s at: TestBoolean2 (suite)
> [junit4] OK 0.05s | TestBoolean2.testQueries04
> [junit4] OK 0.01s | TestBoolean2.testQueries05
> [junit4] OK 0.02s | TestBoolean2.testQueries02
> [junit4] OK 0.03s | TestBoolean2.testQueries03
> [junit4] OK 0.02s | TestBoolean2.testQueries06
> [junit4] OK 0.00s | TestBoolean2.testQueries07
> [junit4] OK 4.97s | TestBoolean2.testRandomQueries
> [junit4] OK 0.02s | TestBoolean2.testQueries08
> [junit4] OK 0.01s | TestBoolean2.testQueries01
> [junit4] OK 0.01s | TestBoolean2.testQueries09
> [junit4] Completed [1/1] in 317.06s, 10 tests
> {noformat}
> With this simple fix, it takes 24s, more than 10x faster.
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