We build shims against a number of different versions of Hadoop to verify API compatibility. We're dropping support for pre-0.20 Hadoop versions soon, so that should reduce the overhead here considerably.
JVS On Sep 19, 2010, at 11:24 PM, Chaitanya Krishna wrote: > Hi, > > I've just started on Hive by following the wiki and trying to set it up. As > mentioned in the wiki, I run "ant package". But when its run, I find that > there are several versions of hadoop tarballs that are being deployed in > build/hadoopcore. When I did a bit of search for the cause of it, I find that > this comes because of the ant-target "compile" in shims/build.xml, that is > called as an iteration of target "compile" in parent build.xml. I wonder if > this behaviour is to be expected or is it a bug? > > Please reply > > Thanks, > Chaitanya.