Dmitriy Ryaboy
Sun, 01 Nov 2009 22:08:39 -0800
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 <zjf...@gmail.com> 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 >