You are viewing a plain text version of this content. The canonical link for it is here.
Posted to common-dev@hadoop.apache.org by "Jeongin Ju (Jira)" <ji...@apache.org> on 2021/08/23 08:46:00 UTC

[jira] [Created] (HADOOP-17859) DNS Query on DNS Registry got connection timed out at times.

Jeongin Ju created HADOOP-17859:
-----------------------------------

             Summary: DNS Query on DNS Registry got connection timed out at times.
                 Key: HADOOP-17859
                 URL: https://issues.apache.org/jira/browse/HADOOP-17859
             Project: Hadoop Common
          Issue Type: Bug
          Components: registry
            Reporter: Jeongin Ju
             Fix For: 3.1.2


DNS query on YARN Registry DNS got connection timed out at times.

 

After checking logs on registry dns, we found the cause that size of UDP Response is greater than Preallocated Byte buffer(4096)

 

We added failsafe case by returning input query with TC flag so that client can know they should retried using TCP protocol.

 

 

We found the problem and patched our cluster on 3.1.2 but it seems trunk still has the same problem.

I attached patch based on the trunk.

 

Thanks!



--
This message was sent by Atlassian Jira
(v8.3.4#803005)

---------------------------------------------------------------------
To unsubscribe, e-mail: common-dev-unsubscribe@hadoop.apache.org
For additional commands, e-mail: common-dev-help@hadoop.apache.org