I do not want to receive email .Thaks!
------------------ Original ------------------ From: "Jörn Franke";<jornfra...@gmail.com>; Date: Sat, Apr 16, 2016 03:10 PM To: "user"<user@hive.apache.org>; Subject: Re: Mappers spawning Hive queries Just out of curiosity, what is the use case behind this? How do you call the shell script? > On 16 Apr 2016, at 00:24, Shirish Tatikonda <shirish.tatiko...@gmail.com> > wrote: > > Hello, > > I am trying to run multiple hive queries in parallel by submitting them > through a map-reduce job. > More specifically, I have a map-only hadoop streaming job where each mapper > runs a shell script that does two things -- 1) parses input lines obtained > via streaming; and 2) submits a very simple hive query (via hive -e ...) with > parameters computed from step-1. > > Now, when I run the streaming job, the mappers seem to be stuck and I don't > know what is going on. When I looked on resource manager web UI, I don't see > any new MR Jobs (triggered from the hive query). I am trying to understand > this behavior. > > This may be a bad idea to begin with, and there may be better ways to > accomplish the same task. However, I would like to understand the behavior of > such a MR job. > > Any thoughts? > > Thank you, > Shirish >
