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From hadoop user <iphul...@gmail.com>
Subject Re: Hadoop Version
Date Sat, 29 Jan 2011 00:23:35 GMT
Redirecting to common-user,
you can check hadoop version by using any of the following methods.

CLI : using hadoop version command.
bin/hadoop version

Web Interface:
Check Name node or Job tracker web interface. It will show version number.


On Fri, Jan 28, 2011 at 11:24 AM, <praveen.peddi@nokia.com> wrote:

>  Hello all,
> I am having issues with accessing hdfs and I figured its due to version
> mismatch. I know my jar files have multiple copies of hadoop (pig has its
> own, I have hadoop 0.20.2 and Whirr had its own hadoop copy). My question
> how to find the right version of hadoop that matches with the one I
> installed? Where is the hadoop version info stored?
> 2011-01-28 14:17:24,729 WARN org.apache.hadoop.ipc.Server: Incorrect header
> or version mismatch from xx.xx.xx.xx:57271 got version 4 expected version 3
> Praveen

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