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Posted to dev@lucene.apache.org by "Varun Thacker (JIRA)" <ji...@apache.org> on 2018/06/04 04:11:00 UTC

[jira] [Commented] (SOLR-12358) Autoscaling suggestions fail randomly and for certain policies

    [ https://issues.apache.org/jira/browse/SOLR-12358?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16499723#comment-16499723 ] 

Varun Thacker commented on SOLR-12358:
--------------------------------------

I tried out the example mentioned here against master , and I don't get an error. But when I violate the policy while creating the collection the error message isn't very helpful . I filed SOLR-12442 for it

> Autoscaling suggestions fail randomly and for certain policies
> --------------------------------------------------------------
>
>                 Key: SOLR-12358
>                 URL: https://issues.apache.org/jira/browse/SOLR-12358
>             Project: Solr
>          Issue Type: Bug
>      Security Level: Public(Default Security Level. Issues are Public) 
>          Components: AutoScaling
>    Affects Versions: 7.3.1
>            Reporter: Jerry Bao
>            Assignee: Noble Paul
>            Priority: Critical
>         Attachments: SOLR-12358.patch, SOLR-12358.patch, SOLR-12358.patch, SOLR-12358.patch, diagnostics, nodes
>
>
> For the following policy
> {code:java}
> {"cores": "<4","node": "#ANY"}{code}
> the suggestions endpoint fails
> {code:java}
> "error": {"msg": "Comparison method violates its general contract!","trace": "java.lang.IllegalArgumentException: Comparison method violates its general contract!\n\tat java.util.TimSort.mergeHi(TimSort.java:899)\n\tat java.util.TimSort.mergeAt(TimSort.java:516)\n\tat java.util.TimSort.mergeCollapse(TimSort.java:441)\n\tat java.util.TimSort.sort(TimSort.java:245)\n\tat java.util.Arrays.sort(Arrays.java:1512)\n\tat java.util.ArrayList.sort(ArrayList.java:1462)\n\tat java.util.Collections.sort(Collections.java:175)\n\tat org.apache.solr.client.solrj.cloud.autoscaling.Policy.setApproxValuesAndSortNodes(Policy.java:363)\n\tat org.apache.solr.client.solrj.cloud.autoscaling.Policy$Session.applyRules(Policy.java:310)\n\tat org.apache.solr.client.solrj.cloud.autoscaling.Policy$Session.<init>(Policy.java:272)\n\tat org.apache.solr.client.solrj.cloud.autoscaling.Policy.createSession(Policy.java:376)\n\tat org.apache.solr.client.solrj.cloud.autoscaling.PolicyHelper.getSuggestions(PolicyHelper.java:214)\n\tat org.apache.solr.cloud.autoscaling.AutoScalingHandler.handleSuggestions(AutoScalingHandler.java:158)\n\tat org.apache.solr.cloud.autoscaling.AutoScalingHandler.handleRequestBody(AutoScalingHandler.java:133)\n\tat org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:195)\n\tat org.apache.solr.api.ApiBag$ReqHandlerToApi.call(ApiBag.java:242)\n\tat org.apache.solr.api.V2HttpCall.handleAdmin(V2HttpCall.java:311)\n\tat org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:717)\n\tat org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:498)\n\tat org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:384)\n\tat org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:330)\n\tat org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1629)\n\tat org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:533)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)\n\tat org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190)\n\tat org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)\n\tat org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)\n\tat org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)\n\tat org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)\n\tat org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)\n\tat org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)\n\tat org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:219)\n\tat org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126)\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)\n\tat org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335)\n\tat org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)\n\tat org.eclipse.jetty.server.Server.handle(Server.java:530)\n\tat org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:347)\n\tat org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:256)\n\tat org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)\n\tat org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)\n\tat org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)\n\tat org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:247)\n\tat org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)\n\tat org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)\n\tat org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:382)\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)\n\tat org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)\n\tat java.lang.Thread.run(Thread.java:748)\n","code": 500}{code}
> In addition, sometimes the suggestions endpoint fails randomly with these policies with the same error
> {code:java}
> {"replica": "<2", "shard": "#EACH", "node": "#ANY"},
> {"replica": "<2", "shard": "#EACH", "sysprop.az": "us-east-1a", "collection": "collection"},{code}
>  



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