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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] [Comment Edited] (HDFS-6089) Standby NN while transitioning to active throws a connection refused error when the prior active NN process is suspended
Date Tue, 18 Mar 2014 22:48:46 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6089?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13939917#comment-13939917
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Suresh Srinivas edited comment on HDFS-6089 at 3/18/14 10:47 PM:
-----------------------------------------------------------------

Basic question - If standby namenode is rolling every x minutes, why cannot that be the period
the active namenode can roll the editlogs? Why can't active use the same criteria for rolling
edits?


was (Author: sureshms):
Basic question - If standby namenode is rolling every x minutes, why cannot that be the period
the active namenode can roll the editlogs?

> Standby NN while transitioning to active throws a connection refused error when the prior
active NN process is suspended
> ------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-6089
>                 URL: https://issues.apache.org/jira/browse/HDFS-6089
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: ha
>    Affects Versions: 2.4.0
>            Reporter: Arpit Gupta
>            Assignee: Jing Zhao
>         Attachments: HDFS-6089.000.patch, HDFS-6089.001.patch
>
>
> The following scenario was tested:
> * Determine Active NN and suspend the process (kill -19)
> * Wait about 60s to let the standby transition to active
> * Get the service state for nn1 and nn2 and make sure nn2 has transitioned to active.
> What was noticed that some times the call to get the service state of nn2 got a socket
time out exception.



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