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https://issues.apache.org/jira/browse/SOLR-13654?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17215631#comment-17215631
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Erick Erickson commented on SOLR-13654:
---------------------------------------
[~hossman] I think this can be closed? At least that error cannot be thrown now
since that code was removed in SOLR-12823
> Scary jenkins failure related to collection creation: "non legacy mode
> coreNodeName missing"
> --------------------------------------------------------------------------------------------
>
> Key: SOLR-13654
> URL: https://issues.apache.org/jira/browse/SOLR-13654
> Project: Solr
> Issue Type: Bug
> Reporter: Chris M. Hostetter
> Priority: Major
> Attachments: thetaphi_Lucene-Solr-8.2-Linux_452.log.txt
>
>
> A recent SplitShardTest jenkins failure has a perplexing error that i've been
> updable to reproduce...
> {noformat}
> [junit4] > Throwable #1:
> org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error
> from server at http://127.0.0.1:36447/_bx/t: Underlying core creation failed
> while creating collection: shardSplitWithRule_link
> {noformat}
> ...this exception is thrown when attempting to create a brand new 1x2
> collection (prior to any splitting) using the following rule/request...
> {noformat}
> CollectionAdminRequest.Create createRequest =
> CollectionAdminRequest.createCollection(collectionName, "conf1", 1, 2)
> .setRule("shard:*,replica:<2,node:*");
> {noformat}
> ...the logs indicate that the specific problem is that the CREATE SolrCore
> commands aren't inlcuding a 'coreNodeName' which is mandatory because this is
> a "non legacy" clusuter...
> {noformat}
> [junit4] 2> 1090551 ERROR (OverseerThreadFactory-6577-thread-5) [ ]
> o.a.s.c.a.c.OverseerCollectionMessageHandler Error from shard:
> http://127.0.0.1:36447/_bx/t
> [junit4] 2> =>
> org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error
> from server at http://127.0.0.1:36447/_bx/t: Error CREATEing SolrCore
> 'shardSplitWithRule_link_shard1_replica_n1': non legacy mode coreNodeName
> missing {collection.configName=conf1, numShards=1, shard=shard1,
> collection=shardSplitWithRule_link, replicaType=NRT}
> [junit4] 2> at
> org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:656)
> [junit4] 2>
> org.apache.solr.client.solrj.impl.HttpSolrClient$RemoteSolrException: Error
> from server at http://127.0.0.1:36447/_bx/t: Error CREATEing SolrCore
> 'shardSplitWithRule_link_shard1_replica_n1': non legacy mode coreNodeName
> missing {collection.configName=conf1, numShards=1, shard=shard1,
> collection=shardSplitWithRule_link, replicaType=NRT}
> [junit4] 2> at
> org.apache.solr.client.solrj.impl.HttpSolrClient.executeMethod(HttpSolrClient.java:656)
> ~[java/:?]
> [junit4] 2> at
> org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:262)
> ~[java/:?]
> [junit4] 2> at
> org.apache.solr.client.solrj.impl.HttpSolrClient.request(HttpSolrClient.java:245)
> ~[java/:?]
> [junit4] 2> at
> org.apache.solr.client.solrj.SolrClient.request(SolrClient.java:1274)
> ~[java/:?]
> [junit4] 2> at
> org.apache.solr.handler.component.HttpShardHandlerFactory$1.request(HttpShardHandlerFactory.java:176)
> ~[java/:?]
> [junit4] 2> at
> org.apache.solr.handler.component.HttpShardHandler.lambda$submit$0(HttpShardHandler.java:199)
> ~[java/:?]
> [junit4] 2> at
> java.util.concurrent.FutureTask.run(FutureTask.java:264) ~[?:?]
> {noformat}
> ...so how/why is the Overseer generating CREATE core commands w/o
> coreNodeName params ????
> Is this a race condition between the test setting legacyCloud=false and the
> Overseer processing the CREATE collection Op?
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