[ 
https://issues.apache.org/jira/browse/SOLR-12201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16429313#comment-16429313
 ] 

Mikhail Khludnev commented on SOLR-12201:
-----------------------------------------

reproduced locally
 bq. ant test  -Dtestcase=TestReplicationHandler 
-Dtests.method=doTestIndexFetchOnMasterRestart -Dtests.seed=C1A11EE85E7B0C57 
-Dtests.multiplier=2 -Dtests.slow=true -Dtests.badapples=true -Dtests.locale=en 
-Dtests.timezone=Europe/Isle_of_Man -Dtests.asserts=true 
-Dtests.file.encoding=UTF-8

{code}
   [junit4]   2> NOTE: reproduce with: ant test  
-Dtestcase=TestReplicationHandler 
-Dtests.method=doTestIndexFetchOnMasterRestart -Dtests.seed=C1A11EE85E7B0C57 
-Dtests.multiplier=2 -Dtests.slow=true -Dtests.badapples=true -Dtests.locale=en 
-Dtests.timezone=Europe/Isle_of_Man -Dtests.asserts=true 
-Dtests.file.encoding=UTF-8
   [junit4] FAILURE  145s | 
TestReplicationHandler.doTestIndexFetchOnMasterRestart <<<
   [junit4]    > Throwable #1: java.lang.AssertionError: expected:<1> but 
was:<3>
   [junit4]    >        at 
__randomizedtesting.SeedInfo.seed([C1A11EE85E7B0C57:1956DA0CF5A0CE0B]:0)
   [junit4]    >        at 
org.apache.solr.handler.TestReplicationHandler.doTestIndexFetchOnMasterRestart(TestReplicationHandler.java:666)
{code}

> TestReplicationHandler.doTestIndexFetchOnMasterRestart(): unexpected 
> replication failures
> -----------------------------------------------------------------------------------------
>
>                 Key: SOLR-12201
>                 URL: https://issues.apache.org/jira/browse/SOLR-12201
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>            Reporter: Steve Rowe
>            Priority: Major
>
> This is a BadApple'd test, and in local beasting failed 31/100 iterations.
> E.g. from 
> [https://builds.apache.org/job/Lucene-Solr-BadApples-Tests-master/24/]:
> {noformat}
>    [junit4]   1> SHALIN: 
> {responseHeader={status=0,QTime=150},details={indexSize=11.2 
> KB,indexPath=/home/jenkins/jenkins-slave/workspace/PreCommit-SOLR-Build/sourcedir/solr/build/solr-core/test/J1/temp/solr.handler.TestReplicationHandler_C1A11EE85E7B0C57-001/solr-instance-008/./collection1/data/index/,commits=[{indexVersion=1523043739675,generation=2,filelist=[_0.fdt,
>  _0.fdx, _0.fnm, _0.nvd, _0.nvm, _0.si, _0_FSTOrd50_0.doc, _0_FSTOrd50_0.tbk, 
> _0_FSTOrd50_0.tix, 
> segments_2]}],isMaster=false,isSlave=true,indexVersion=1523043739675,generation=2,slave={masterDetails={indexSize=11.27
>  
> KB,indexPath=/home/jenkins/jenkins-slave/workspace/PreCommit-SOLR-Build/sourcedir/solr/build/solr-core/test/J1/temp/solr.handler.TestReplicationHandler_C1A11EE85E7B0C57-001/solr-instance-007/./collection1/data/index/,commits=[{indexVersion=0,generation=1,filelist=[segments_1]},
>  {indexVersion=1523043739675,generation=2,filelist=[_0.fdt, _0.fdx, _0.fnm, 
> _0.nvd, _0.nvm, _0.si, _0_FSTOrd50_0.doc, _0_FSTOrd50_0.tbk, 
> _0_FSTOrd50_0.tix, 
> segments_2]}],isMaster=true,isSlave=false,indexVersion=1523043739675,generation=2,master={confFiles=schema.xml,replicateAfter=[commit,
>  
> startup],replicationEnabled=true,replicableVersion=1523043739675,replicableGeneration=2}},masterUrl=http://127.0.0.1:36880/solr/collection1,pollInterval=00:00:01,nextExecutionAt=Fri
>  Apr 06 20:42:21 BST 2018,indexReplicatedAt=Fri Apr 06 20:42:20 BST 
> 2018,indexReplicatedAtList=[Fri Apr 06 20:42:20 BST 2018, Fri Apr 06 20:42:17 
> BST 2018],replicationFailedAtList=[Fri Apr 06 20:42:17 BST 
> 2018],timesIndexReplicated=2,lastCycleBytesDownloaded=11650,timesFailed=1,replicationFailedAt=Fri
>  Apr 06 20:42:17 BST 2018,previousCycleTimeInSeconds=0,currentDate=Fri Apr 06 
> 20:42:21 BST 2018,isPollingDisabled=false,isReplicating=false}}}
> [...]
>    [junit4]   2> NOTE: reproduce with: ant test  
> -Dtestcase=TestReplicationHandler 
> -Dtests.method=doTestIndexFetchOnMasterRestart -Dtests.seed=C1A11EE85E7B0C57 
> -Dtests.multiplier=2 -Dtests.slow=true -Dtests.badapples=true 
> -Dtests.locale=en -Dtests.timezone=Europe/Isle_of_Man -Dtests.asserts=true 
> -Dtests.file.encoding=UTF-8
>    [junit4] FAILURE 9.39s J1 | 
> TestReplicationHandler.doTestIndexFetchOnMasterRestart <<<
>    [junit4]    > Throwable #1: java.lang.AssertionError: expected:<1> but 
> was:<2>
>    [junit4]    >      at 
> __randomizedtesting.SeedInfo.seed([C1A11EE85E7B0C57:1956DA0CF5A0CE0B]:0)
>    [junit4]    >      at 
> org.apache.solr.handler.TestReplicationHandler.doTestIndexFetchOnMasterRestart(TestReplicationHandler.java:666)
>    [junit4]    >      at java.lang.Thread.run(Thread.java:748)
> {noformat}
> The failed assertion is on line 666:
> {code:java|title=TestReplicationHandler.java}
> 666:    assertEquals(1, 
> Integer.parseInt(getSlaveDetails("timesIndexReplicated")));
> 667:    String timesFailed = getSlaveDetails("timesFailed");
> 668:    assertEquals(0, Integer.parseInt(timesFailed != null ?  timesFailed : 
> "0"));
> {code}
> {{getSlaveDetails()}} prints out the properties it retrieves as JSON 
> following "SHALIN:" -- see the log excerpt above.  {{timesIndexReplicated}} 
> is 2 instead of 1 because there was an unexpected replication failure: 
> {{timesFailed}} is 1; if the assertion at line 666 were not there, then the 
> one asserting zero replication failures, at line 668, would fail.



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