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Posted to common-user@hadoop.apache.org by Todd Lipcon <to...@cloudera.com> on 2009/04/07 01:03:23 UTC
Re: problem running on a cluster of mixed hardware due to
"Incompatible" buildVersion of JobTracker adn TaskTracker
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
Re: problem running on a cluster of mixed hardware due to "Incompatible" buildVersion of JobTracker adn TaskTracker
Posted by Brian Bockelman <bb...@cse.unl.edu>.
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