DB Connect - Cannot Communicate with Task Server

[vpsmax]

Hello.

Good afternoon.  Looking to troubleshoot a DB Connect error "cannot communicate with task server".  Below is the error messages received ...

2020-12-09 09:04:27.033 -0600 [Thread-15] INFO org.eclipse.jetty.server.AbstractConnector - Stopped application@b54cfd8{HTTP/1.1,[http/1.1]}{127.0.0.1:9998}
2020-12-09 09:04:27.035 -0600 [Thread-15] INFO com.splunk.dbx.server.task.DefaultTaskService - action=try_to_graceful_stop_task_service
2020-12-09 09:04:27.035 -0600 [Thread-15] INFO org.quartz.core.QuartzScheduler - Scheduler QuartzScheduler_$_NON_CLUSTERED shutting down.
2020-12-09 09:04:27.035 -0600 [Thread-15] INFO org.quartz.core.QuartzScheduler - Scheduler QuartzScheduler_$_NON_CLUSTERED paused.
2020-12-09 09:04:27.519 -0600 [Thread-15] INFO org.quartz.core.QuartzScheduler - Scheduler QuartzScheduler_$_NON_CLUSTERED shutdown complete.
2020-12-09 09:04:27.519 -0600 [Thread-15] INFO c.s.dbx.server.managedobject.CheckpointCleaner - action=stop_checkpoint_cleaner
2020-12-09 09:04:27.520 -0600 [Thread-15] INFO c.s.d.s.api.service.database.ConnectionCleaner - action=stop_datasource_clean_up_task
2020-12-09 09:04:27.540 -0600 [Thread-15] INFO org.eclipse.jetty.server.handler.ContextHandler - Stopped i.d.j.MutableServletContextHandler@809f75c{/,null,UNAVAILABLE}

Checked the DB Connect configuration include JRE Installation Path, JVM Options and Task Server Port (9998) and see no issues.  How can this issue be resolved?

Regards,
Max

[vpsmax · Accepted solution]

We were able to resolve the issue by ...

• Reverting back to DB Connect 3.1.4
• Changing the Task Server port from 9998 to 9995

[vpsmax]

Tried looking at $JAVA_HOME.

1 - Ran echo $JAVA_HOME and it is set to /usr/lib/jvm/java-se-8u40-ri

2 - Checked the JRE Installation Path (JAVA_HOME) within DB Connect and it is also set to /usr/lib/jvm/java-se-8u40-ri

[vpsmax]

Also, tried enabling Port 9998 within inputs.conf.  Added the following stanza to inputs.conf:

[splunktcp-ssl:9998]
compressed = true

But still having issues.

[vpsmax]

To troubleshoot, tried to change the Task Server Port from 9998 to 9995 but still having issues.