hadoop-hdfs-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Stephen Chu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-7542) Add an option to DFSAdmin -safemode wait to ignore connection failures
Date Wed, 17 Dec 2014 22:05:13 GMT
Stephen Chu created HDFS-7542:
---------------------------------

             Summary: Add an option to DFSAdmin -safemode wait to ignore connection failures
                 Key: HDFS-7542
                 URL: https://issues.apache.org/jira/browse/HDFS-7542
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: tools
    Affects Versions: 2.6.0
            Reporter: Stephen Chu
            Assignee: Stephen Chu
            Priority: Minor


Currently, the _dfsadmin -safemode wait_ command aborts when connection to the NN fails (network
glitch, ConnectException when NN is unreachable, EOFException if network link shut down).


In certain situations, users have asked for an option to make the command resilient to connection
failures. This is useful so that the admin can initiate the wait command despite the NN not
being fully up or survive intermittent network issues. With this option, the admin can rely
on the wait command continuing to poll instead of aborting.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

Mime
View raw message