Hi all,

Today I try pig 0.5, but it can not connect to hdfs 0.18.3. From the release
announcement, it seems pig 0.5 already support hadoop 0.20. But does it
means it do not support 0.18.3 any more ?
Jeff Zhang

Correct. Pig does not provide backwards compatibility across major
Hadoop versions.

There is a patch that allows 0.4 to compile against both 18 and 20
(pig-933 I think), but the decision was made not to integrate it as it
would not be possible to keep this backwards compatibility once we
went to the new Hadoop API in 0.6.

That patch is in the Cloudera package, though, so the cloudera deb
works with both 18 and 20.

Other than the hadoop version change 0.5 is not much different from
0.4 -- some bug fixes perhaps.

-D

On Mon, Nov 2, 2009 at 12:57 AM, Jeff Zhang <[EMAIL PROTECTED]> wrote:
> Hi all,
>
> Today I try pig 0.5, but it can not connect to hdfs 0.18.3. From the release
> announcement, it seems pig 0.5 already support hadoop 0.20. But does it
> means it do not support 0.18.3 any more ?
>
>
> Jeff Zhang
>

A particular version of Pig works with a particular version of Hadoop.
In this case, Pig 0.5.0 works with Hadoop 0.20.x. Pig 0.4.0 works with
Hadoop 0.18.x and has all the features of Pig 0.5.0

Santhosh

-----Original Message-----
From: Jeff Zhang [mailto:[EMAIL PROTECTED]]
Sent: Sunday, November 01, 2009 9:58 PM
To: [EMAIL PROTECTED]
Subject: Pig 0.5 do not support hadoop 0.18.3 ?

Hi all,

Today I try pig 0.5, but it can not connect to hdfs 0.18.3. From the
release announcement, it seems pig 0.5 already support hadoop 0.20. But
does it means it do not support 0.18.3 any more ?
Jeff Zhang