[GitHub] [incubator-druid] niketh opened a new issue #7376: Failing Broker Queries - Faulty Channel

[GitBox <gi...@apache.org>]

niketh opened a new issue #7376: Failing Broker Queries - Faulty Channel
URL: https://github.com/apache/incubator-druid/issues/7376
 
 
   Broker queries fail with Faulty Channel Exception
   
   ### Description
   
   This error occurs when the broker queries fail on MM due to improper shutdown of Peon Task. I have patched this locally by explicitly un-announcing the peon task before destroy is called
   
   This change was applied here https://github.com/apache/incubator-druid/blob/master/indexing-service/src/main/java/org/apache/druid/indexing/overlord/ForkingTaskRunner.java#L605
   
   ```
         curatorDruidNodeAnnouncer.unannounce(new DiscoveryDruidNode(
             new DruidNode(
                 node.getServiceName(),
                 node.getHost(),
                 taskInfo.processHolder.port,
                 taskInfo.processHolder.port,
                 taskInfo.processHolder.tlsPort,
                 node.isEnablePlaintextPort(),
                 node.isEnableTlsPort()
             ),
             DruidNodeDiscoveryProvider.NODE_TYPE_PEON,
             ImmutableMap.of()
         ));
   
         try {
           log.info("Destroying task: %s . Sleeping for 10000 millis", taskid);
           Thread.sleep(10000);
         } catch (InterruptedException e) {
           log.error("Sleep interuppedted for task: %s", taskid);
         }
   
         taskInfo.processHolder.process.destroy();
   ```
   
   This is similar to https://github.com/apache/incubator-druid/issues/6043 but the exceptions reported there are slightly different.
   

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