hadoop-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Harsh J <ha...@cloudera.com>
Subject Re: YARN FSDownload: How did Mr1 do it ?
Date Wed, 12 Feb 2014 03:47:10 GMT
DistributedCache has also had timestamp checks in MR1 for quite a
while now: https://github.com/apache/hadoop-common/blob/release-0.20.2/src/core/org/apache/hadoop/filecache/DistributedCache.java#L481
(See also the doc at
https://github.com/apache/hadoop-common/blob/release-0.20.2/src/core/org/apache/hadoop/filecache/DistributedCache.java#L56).

On Wed, Feb 12, 2014 at 12:10 AM, Jay Vyas <jayunit100@gmail.com> wrote:
> Im noticing that resource localization is much more complex in YARN than
> MR1, in particular, the timestamps need to be identical, or else, an
> exception is thrown.
>
> i never saw that in MR1.
>
> How did MR1 JobTrackers handle resource localization differently than MR2
> App Masters?
>
> --
> Jay Vyas
> http://jayunit100.blogspot.com



-- 
Harsh J

Mime
View raw message