hadoop-hdfs-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-1335) HDFS side of HADOOP-6904: first step towards inter-version communications between dfs client and NameNode
Date Mon, 09 Aug 2010 17:03:16 GMT
HDFS side of HADOOP-6904: first step towards inter-version communications between dfs client
and NameNode
---------------------------------------------------------------------------------------------------------

                 Key: HDFS-1335
                 URL: https://issues.apache.org/jira/browse/HDFS-1335
             Project: Hadoop HDFS
          Issue Type: New Feature
          Components: hdfs client, name-node
    Affects Versions: 0.22.0
            Reporter: Hairong Kuang
            Assignee: Hairong Kuang
             Fix For: 0.22.0


The idea is that for getProtocolVersion, NameNode checks if the client and server versions
are compatible if the server version is greater than the client version. If no, throws a VersionIncompatible
exception; otherwise, returns the server version.

On the dfs client side, when creating a NameNode proxy, catches the VersionMismatch exception
and then checks if the client version and the server version are compatible if the client
version is greater than the server version. If not compatible, throws exception VersionIncomptible;
otherwise, records the server version and continues.

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message