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Posted to common-user@hadoop.apache.org by Brian Bockelman <bb...@cse.unl.edu> on 2009/04/07 01:06:13 UTC

Re: problem running on a cluster of mixed hardware due to "Incompatible" buildVersion of JobTracker adn TaskTracker

Ah yes, there you go ... so much for extrapolating on a Monday :).   
Sorry Bill!

Brian

On Apr 6, 2009, at 6:03 PM, Todd Lipcon wrote:

> On Mon, Apr 6, 2009 at 4:01 PM, Brian Bockelman  
> <bb...@cse.unl.edu>wrote:
>
>> Hey Bill,
>>
>> I might be giving you bad advice (I've only verified this for HDFS
>> components on the 0.19.x branch, not the JT/TT or the 0.18.x  
>> branch), but...
>>
>> In my understanding, Hadoop only compares the base SVN revision  
>> number, not
>> the build strings.  Make sure that both have the SVN rev.  Our build
>> machines don't have svn installed, so we actually have to generate  
>> the
>> correct SVN rev, then submit it to the build clusters.  We  
>> certainly don't
>> have our build time strings match up.
>>
>
> Nope - the JT/TT definitely do verify the entirety of the build  
> string (at
> least in the case when not built from SVN). I saw the same behavior  
> as Bill
> is reporting last week on 0.18.3.
>
> -Todd