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  1. Solr
  2. SOLR-6744

fl renaming / alias of uniqueKey field generates null pointer exception in SolrCloud configuration

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: 4.10.1
    • Fix Version/s: 6.2.1, 6.3, 7.0
    • Component/s: SolrCloud
    • Labels:
      None
    • Environment:

      Multiple replicas on SolrCloud config. This specific example with 4 shard, 3 replica per shard config. This bug does NOT exist when query is handled by single core.

      Description

      If trying to rename the uniqueKey field using 'fl' in a distributed query (ie: SolrCloud config), an NPE is thrown.

      The workarround is to redundently request the uniqueKey field, once with the desired alias, and once with the original name

      Example...

      http://localhost:8983/solr/cloudcollection/select?q=*%3A*&wt=xml&indent=true&fl=key:id

      Work around:

      http://localhost:8983/solr/cloudcollection/select?q=*%3A*&wt=xml&indent=true&fl=key:id&fl=id

      Error w/o work around...

      <response><lst name="responseHeader"><int name="status">500</int><int name="QTime">11</int><lst name="params"><str name="q">*:*</str><str name="indent">true</str><str name="fl">key:id</str><str name="wt">xml</str></lst></lst><lst name="error"><str name="trace">java.lang.NullPointerException
      	at org.apache.solr.handler.component.QueryComponent.returnFields(QueryComponent.java:1257)
      	at org.apache.solr.handler.component.QueryComponent.handleRegularResponses(QueryComponent.java:720)
      	at org.apache.solr.handler.component.QueryComponent.handleResponses(QueryComponent.java:695)
      	at org.apache.solr.handler.component.SearchHandler.handleRequestBody(SearchHandler.java:324)
      	at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135)
      	at org.apache.solr.core.SolrCore.execute(SolrCore.java:1967)
      	at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:777)
      	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:418)
      	at org.apache.solr.servlet.SolrDispatchFilter.doFilter(SolrDispatchFilter.java:207)
      	at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1419)
      	at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:455)
      	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:137)
      	at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:557)
      	at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:231)
      	at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1075)
      	at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:384)
      	at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:193)
      	at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1009)
      	at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:135)
      	at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:255)
      	at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:154)
      	at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:116)
      	at org.eclipse.jetty.server.Server.handle(Server.java:368)
      	at org.eclipse.jetty.server.AbstractHttpConnection.handleRequest(AbstractHttpConnection.java:489)
      	at org.eclipse.jetty.server.BlockingHttpConnection.handleRequest(BlockingHttpConnection.java:53)
      	at org.eclipse.jetty.server.AbstractHttpConnection.headerComplete(AbstractHttpConnection.java:942)
      	at org.eclipse.jetty.server.AbstractHttpConnection$RequestHandler.headerComplete(AbstractHttpConnection.java:1004)
      	at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:640)
      	at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:235)
      	at org.eclipse.jetty.server.BlockingHttpConnection.handle(BlockingHttpConnection.java:72)
      	at org.eclipse.jetty.server.bio.SocketConnector$ConnectorEndPoint.run(SocketConnector.java:264)
      	at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:608)
      	at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:543)
      	at java.lang.Thread.run(Thread.java:745)
      </str><int name="code">500</int></lst></response>
      

        Attachments

        1. SOLR-6744.patch
          7 kB
          Mike Drob
        2. SOLR-6744.patch
          7 kB
          Mike Drob
        3. SOLR-6744.patch
          5 kB
          Mike Drob

          Activity

            People

            • Assignee:
              tomasflobbe Tomás Fernández Löbbe
              Reporter:
              gdgrimm Garth Grimm
            • Votes:
              1 Vote for this issue
              Watchers:
              12 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: