Somehow, in the long chain of shell variable fiddling that creates the
command line in bin/daemon.sh, there is a small mistake. The command
line for tasktracker comes out (shorn of many other items) with two
memory allocation requests:

/System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java
--Xmx1000m -Xmx512m  org.apache.hadoop.mapred.TaskTracker

This is in Cloudera CH3, but is probably in regular 0.20.

--
Lance Norskog
[EMAIL PROTECTED]

Hello Lance,

On Fri, Apr 8, 2011 at 10:07 AM, Lance Norskog <[EMAIL PROTECTED]> wrote:
> Somehow, in the long chain of shell variable fiddling that creates the
> command line in bin/daemon.sh, there is a small mistake. The command
> line for tasktracker comes out (shorn of many other items) with two
> memory allocation requests:
>
> /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home/bin/java
> --Xmx1000m -Xmx512m  org.apache.hadoop.mapred.TaskTracker

Yes, this occurs when special opts are also set for individual
daemons. An issue already tracks this, if you're interested in fixing
this behavior! Have a look at:
https://issues.apache.org/jira/browse/HADOOP-6167

--
Harsh J