A shell script actually worked great! Thanks so much!
Grace
-Original Message-
From: Robert Evans [mailto:ev...@yahoo-inc.com]
Sent: Thursday, August 25, 2011 11:32 AM
To: common-dev@hadoop.apache.org
Subject: Re: Question about invoking an executable from Hadoop mapper
I think this is
I think this is a java issue. I don't think that it is launching a shell to
run your command. I think it is just splitting on white space and then passing
all the args to hadoop. What you want to do is to run
sh -e 'hadoop dfs -cat file| myExec'
Or with streaming white a small shell script t
I think this should be a common use case. I'm trying to invoke an
executable from my mapper. Because my executable takes steaming input, I
used something like the following:
String lCmdStr = "hadoop dfs -cat file | myExec";
Process lChldProc = Runtime.getRuntime().exec(lCmdStr);
All executable a
