[jira] [Commented] (DRILL-4523) Disallow using loopback address in distributed mode

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-4523?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15393447#comment-15393447 ] 

ASF GitHub Bot commented on DRILL-4523:
---------------------------------------

Github user halevaavi commented on the issue:

    https://github.com/apache/drill/pull/445
  
    Where does drill takes the address. I've the following setup in drill-overide.conf :
    drill.exec: {
      cluster-id: "drillbits1",
      zk.connect: "172.16.21.16:2181"
    }
    
    172.16.21.16 is a single node that runs both zookeeper & drill and still drillbit complains about running on the loopback address. Any idea why ?



> Disallow using loopback address in distributed mode
> ---------------------------------------------------
>
>                 Key: DRILL-4523
>                 URL: https://issues.apache.org/jira/browse/DRILL-4523
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components:  Server
>    Affects Versions: 1.6.0
>            Reporter: Arina Ielchiieva
>            Assignee: Arina Ielchiieva
>             Fix For: 1.7.0
>
>
> If we enable debug for org.apache.drill.exec.coord.zk in logback.xml, we only get the hostname and ports information. For example:
> {code}
> 2015-11-04 19:47:02,927 [ServiceCache-0] DEBUG o.a.d.e.c.zk.ZKClusterCoordinator - Cache changed, updating.
> 2015-11-04 19:47:02,932 [ServiceCache-0] DEBUG o.a.d.e.c.zk.ZKClusterCoordinator - Active drillbit set changed.  Now includes 2 total bits.  New active drillbits:
>  h3.poc.com:31010:31011:31012
>  h2.poc.com:31010:31011:31012
> {code}
> We need to know the IP address of each hostname to do further troubleshooting.
> Imagine if any drillbit registers itself as "localhost.localdomain" in zookeeper, we will never know where it comes from. Enabling IP address tracking can help this case.



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