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https://issues.apache.org/jira/browse/SOLR-15013?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17238964#comment-17238964
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Erick Erickson commented on SOLR-15013:
---------------------------------------
[~mikemccand], [~dsmiley] [~simonwillnauer] (pinging you three since you all
seemed to be involved in the JIRA). According to git bisect, this was
introduced in LUCENE-8962, obviously it's intermittent...
IDK whether this is a problem with the Solr test making invalid assumptions or
exercising the code differently than Lucene tests or what...
The bisect output:
2f2146aad46b5969e6fbc99d85e21f595aba56c9 is the first bad commit
commit 2f2146aad46b5969e6fbc99d85e21f595aba56c9
Author: Simon Willnauer <[email protected]>
Date: Mon Aug 24 20:19:08 2020 +0200
LUCENE-8962: Merge segments on getReader (#1623)
Add IndexWriter merge-on-refresh feature to selectively merge
small segments on getReader, subject to a configurable timeout,
to improve search performance by reducing the number of small
segments for searching.
Co-authored-by: Mike McCandless <[email protected]>
:040000 040000 578b66c5e1314e00e54af200b05a1c800e81b677
25e42bfacb0f273470828cec5302d28d1d3c6415 M lucene
:040000 040000 719e8d598b6ea9f6075e1aa9c3382016dbbafc2f
2522a431d009881dbdfe06a5a3753302c4eb0a24 M solr
> Reproducing test failure TestFieldCacheSort 8x
> ----------------------------------------------
>
> Key: SOLR-15013
> URL: https://issues.apache.org/jira/browse/SOLR-15013
> Project: Solr
> Issue Type: Bug
> Security Level: Public(Default Security Level. Issues are Public)
> Reporter: Erick Erickson
> Priority: Major
>
> ant test -Dtestcase=TestFieldCacheSort
> -Dtests.method=testEmptyStringVsNullStringSort -Dtests.seed=2E14D932C133811F
> -Dtests.multiplier=3 -Dtests.slow=true -Dtests.locale=hr-BA
> -Dtests.timezone=America/Scoresbysund -Dtests.asserts=true
> -Dtests.file.encoding=ISO-8859-1
>
>
> [junit4] Started J0 PID(96093@localhost).
> [junit4] Suite: org.apache.solr.uninverting.TestFieldCacheSort
> [junit4] 2> 1334 INFO
> (SUITE-TestFieldCacheSort-seed#[2E14D932C133811F]-worker) [ ]
> o.a.s.SolrTestCase Setting 'solr.default.confdir' system property to
> test-framework derived value of
> '/Users/Erick/apache/solr/solrtest8/solr/server/solr/configsets/_default/conf'
> [junit4] 2> NOTE: reproduce with: ant test -Dtestcase=TestFieldCacheSort
> -Dtests.method=testEmptyStringVsNullStringSort -Dtests.seed=2E14D932C133811F
> -Dtests.multiplier=3 -Dtests.slow=true -Dtests.badapples=true
> -Dtests.locale=hr-BA -Dtests.timezone=America/Scoresbysund
> -Dtests.asserts=true -Dtests.file.encoding=ISO-8859-1
> [junit4] FAILURE 0.40s | TestFieldCacheSort.testEmptyStringVsNullStringSort
> <<<
> [junit4] > Throwable #1: java.lang.AssertionError: expected:<1> but was:<0>
> [junit4] > at
> __randomizedtesting.SeedInfo.seed([2E14D932C133811F:4FF7EBE5B95287AF]:0)
> [junit4] > at
> org.apache.solr.uninverting.TestFieldCacheSort.testEmptyStringVsNullStringSort(TestFieldCacheSort.java:1610)
> [junit4] > at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> [junit4] > at
> java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> [junit4] > at
> java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> [junit4] > at java.base/java.lang.reflect.Method.invoke(Method.java:566)
> [junit4] > at java.base/java.lang.Thread.run(Thread.java:834)
> [junit4] 2> NOTE: test params are: codec=CheapBastard,
> sim=Asserting(RandomSimilarity(queryNorm=false): \{t=DFR I(F)BZ(0.3)}),
> locale=hr-BA, timezone=America/Scoresbysund
> [junit4] 2> NOTE: Mac OS X 10.16 x86_64/AdoptOpenJDK 11.0.5
> (64-bit)/cpus=12,threads=1,free=468375472,total=536870912
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