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https://issues.apache.org/jira/browse/SOLR-12388?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Steve Rowe reopened SOLR-12388:
-------------------------------
{{SearchHandlerTest.testRequireZkConnectedDistrib()}} has been failing, e.g.
from [https://jenkins.thetaphi.de/job/Lucene-Solr-master-Windows/7342/]:
{noformat}
[junit4] 2> NOTE: reproduce with: ant test -Dtestcase=SearchHandlerTest
-Dtests.method=testRequireZkConnectedDistrib -Dtests.seed=E359688CFB80DF17
-Dtests.slow=true -Dtests.locale=zh-Hans-CN -Dtests.timezone=Asia/Choibalsan
-Dtests.asserts=true -Dtests.file.encoding=ISO-8859-1
[junit4] FAILURE 7.29s J0 | SearchHandlerTest.testRequireZkConnectedDistrib
<<<
[junit4] > Throwable #1: java.lang.AssertionError
[junit4] > at
__randomizedtesting.SeedInfo.seed([E359688CFB80DF17:5BD7510D308794B0]:0)
[junit4] > at
org.apache.solr.handler.component.SearchHandlerTest.testRequireZkConnectedDistrib(SearchHandlerTest.java:249)
[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:832)
{noformat}
I'll add some debug printing to help figure out what's happening.
> Enable a strict ZooKeeper-connected search request mode, in which search
> requests will fail when the coordinating node can't communicate with ZooKeeper
> -------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: SOLR-12388
> URL: https://issues.apache.org/jira/browse/SOLR-12388
> Project: Solr
> Issue Type: Improvement
> Security Level: Public(Default Security Level. Issues are Public)
> Components: search, SolrCloud
> Reporter: Steve Rowe
> Assignee: Steve Rowe
> Priority: Minor
> Fix For: 7.4, master (8.0)
>
> Attachments: SOLR-12388.patch
>
>
> Right now, a Solr node will return the results of a search request even if it
> cannot communicate with ZooKeeper at the time it receives the request. This
> may result in stale or incorrect results if there have been major changes to
> the collection structure that the node has not been informed of via
> ZooKeeper. When this happens, as long as all known shards respond, the
> response will succeed, and a {{zkConnected}} header set to {{false}} is
> included in the search response.
> There should be an option to instead fail requests under these conditions, to
> prevent stale or incorrect results.
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