Steve Rowe created LUCENE-8427:
----------------------------------

             Summary: TestBlockMaxConjunction.testRandom() reproducing failure
                 Key: LUCENE-8427
                 URL: https://issues.apache.org/jira/browse/LUCENE-8427
             Project: Lucene - Core
          Issue Type: Bug
          Components: core/query/scoring
    Affects Versions: master (8.0)
            Reporter: Steve Rowe


>From [https://builds.apache.org/job/Lucene-Solr-SmokeRelease-master/1076/]:

{noformat}
Checking out Revision a254e7d7bcd11c2163dfbb7b3d4a3986aee7867b 
(refs/remotes/origin/master)
[...]
   [smoker]    [junit4] Suite: org.apache.lucene.search.TestBlockMaxConjunction
   [smoker]    [junit4]   2> NOTE: reproduce with: ant test  
-Dtestcase=TestBlockMaxConjunction -Dtests.method=testRandom 
-Dtests.seed=C8F831B07E6EEED8 -Dtests.multiplier=2 -Dtests.locale=bg 
-Dtests.timezone=Pacific/Auckland -Dtests.asserts=true 
-Dtests.file.encoding=ISO-8859-1
   [smoker]    [junit4] FAILURE 2.17s J2 | TestBlockMaxConjunction.testRandom 
<<<
   [smoker]    [junit4]    > Throwable #1: junit.framework.AssertionFailedError
   [smoker]    [junit4]    >    at 
__randomizedtesting.SeedInfo.seed([C8F831B07E6EEED8:BAB414BFCF0E58AB]:0)
   [smoker]    [junit4]    >    at junit.framework.Assert.fail(Assert.java:48)
   [smoker]    [junit4]    >    at 
junit.framework.Assert.assertTrue(Assert.java:20)
   [smoker]    [junit4]    >    at 
junit.framework.Assert.assertTrue(Assert.java:27)
   [smoker]    [junit4]    >    at 
org.apache.lucene.search.CheckHits.doCheckMaxScores(CheckHits.java:617)
   [smoker]    [junit4]    >    at 
org.apache.lucene.search.CheckHits.checkTopScores(CheckHits.java:582)
   [smoker]    [junit4]    >    at 
org.apache.lucene.search.TestBlockMaxConjunction.testRandom(TestBlockMaxConjunction.java:69)
   [smoker]    [junit4]    >    at java.lang.Thread.run(Thread.java:748)
   [smoker]    [junit4]   2> NOTE: test params are: codec=Asserting(Lucene70): 
{foo=PostingsFormat(name=Direct)}, docValues:{}, maxPointsInLeafNode=1084, 
maxMBSortInHeap=6.8039593085931545, 
sim=Asserting(org.apache.lucene.search.similarities.AssertingSimilarity@59e53bf7),
 locale=bg, timezone=Pacific/Auckland
   [smoker]    [junit4]   2> NOTE: Linux 3.13.0-88-generic amd64/Oracle 
Corporation 1.8.0_172 (64-bit)/cpus=4,threads=1,free=108247552,total=406323200
{noformat}

{{git bisect}} says:

{noformat}
85c00e77efdf53f30da6eaffd38c2b016a7805bc is the first bad commit
commit 85c00e77efdf53f30da6eaffd38c2b016a7805bc
Author: Dawid Weiss <dwe...@apache.org>
Date:   Tue May 8 10:32:11 2018 +0200

    LUCENE-8267: removed references to memory codecs.
{noformat}

but that ^^ probably just means that the random seed stops working past that 
commit.



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