Shalin Shekhar Mangar created SOLR-11661:
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Summary: Race condition between core creation thread and recovery
request from leader causes inconsistent view of documents
Key: SOLR-11661
URL: https://issues.apache.org/jira/browse/SOLR-11661
Project: Solr
Issue Type: Bug
Security Level: Public (Default Security Level. Issues are Public)
Components: SolrCloud
Reporter: Shalin Shekhar Mangar
Fix For: 7.2, master (8.0)
While testing SOLR-11458, [~ab] ran into an interesting failure which resulted
in different document counts between leader and replica. The test is
MoveReplicaHDFSTest on jira/solr-11458-2 branch.
The failure is rare but reproducible on beasting:
{code}
reproduce with: ant test -Dtestcase=MoveReplicaHDFSTest
-Dtests.method=testNormalFailedMove -Dtests.seed=161856CB543CD71C
-Dtests.slow=true -Dtests.locale=ar-SA -Dtests.timezone=US/Michigan
-Dtests.asserts=true -Dtests.file.encoding=ISO-8859-1
[junit4] FAILURE 14.2s | MoveReplicaHDFSTest.testNormalFailedMove <<<
[junit4] > Throwable #1: java.lang.AssertionError: expected:<100> but
was:<56>
[junit4] > at
__randomizedtesting.SeedInfo.seed([161856CB543CD71C:31134983787E4905]:0)
[junit4] > at
org.apache.solr.cloud.MoveReplicaTest.testFailedMove(MoveReplicaTest.java:305)
[junit4] > at
org.apache.solr.cloud.MoveReplicaHDFSTest.testNormalFailedMove(MoveReplicaHDFSTest.java:69)
{code}
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