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  1. Solr
  2. SOLR-14463

solr admin ui: zkstatus: For input string: "null" with zk 3.6.x

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 8.5.1
    • Fix Version/s: 8.6
    • Component/s: None
    • Labels:
      None

      Description

      When i select in solr 8.5.1 webinterface: Cloud - ZK Status i got
      For input string: "null"

      This happens after upgrading the leader to zookeeper 3.6.1 (upgrading the followers before was not a problem). From my view configuration is running, just the status web page doesn't.
      I remember that there was similar problem before with solr/zk version incompatibilities. From zookeeper documentation 3.6.1 should be fully compatible with 3.5 clients.
      Annoyingly there is no official zk 3.6.1 docker container available, but i think it is easy to reproduce.

      and from solr.log file:

      2020-05-07 15:58:33.194 ERROR (qtp1940055334-231) [   ] o.a.s.h.RequestHandlerBase java.lang.NumberFormatException: For input string: "null"
              at java.base/java.lang.NumberFormatException.forInputString(NumberFormatException.java:65)
              at java.base/java.lang.Integer.parseInt(Integer.java:652)
              at java.base/java.lang.Integer.parseInt(Integer.java:770)
              at org.apache.solr.handler.admin.ZookeeperStatusHandler.getZkStatus(ZookeeperStatusHandler.java:116)
              at org.apache.solr.handler.admin.ZookeeperStatusHandler.handleRequestBody(ZookeeperStatusHandler.java:78)
              at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:211)
              at org.apache.solr.servlet.HttpSolrCall.handleAdmin(HttpSolrCall.java:842)
              at org.apache.solr.servlet.HttpSolrCall.handleAdminRequest(HttpSolrCall.java:808)
              at org.apache.solr.servlet.HttpSolrCall.call(HttpSolrCall.java:559)
              at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:420)
              at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:352)
              at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1596)
              at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:545)
              at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
              at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:590)
              at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
              at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235)
              at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1607)
              at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
              at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1297)
              at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
              at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:485)
              at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1577)
              at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
              at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1212)
              at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
              at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:221)
              at org.eclipse.jetty.server.handler.InetAccessHandler.handle(InetAccessHandler.java:177)
              at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146)
              at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
              at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:322)
              at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
              at org.eclipse.jetty.server.Server.handle(Server.java:500)
              at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:383)
              at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:547)
              at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:375)
              at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:270)
              at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
              at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:103)
              at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:117)
              at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:336)
              at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:313)
              at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:171)
              at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:129)
              at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:388)
              at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:806)
              at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:938)
              at java.base/java.lang.Thread.run(Thread.java:834)
      

      Others have the same isues:
      https://www.reddit.com/r/Solr/comments/fld4l6/issue_with_zk_status_page/

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          matthew medway
        2. image-2020-07-17-13-56-03-855.png
          61 kB
          matthew medway

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              • Assignee:
                janhoy Jan H√łydahl
                Reporter:
                bwahlen Bernd Wahlen
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