Mark fewer parameters in hadoop-site.xml as final
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Key: WHIRR-62
URL: https://issues.apache.org/jira/browse/WHIRR-62
Project: Whirr
Issue Type: Improvement
Components: contrib/python
Reporter: Eli Collins
The hadoop-site.xml generated by hadoop-ec2-init-remote.sh makes a number of
parameters final, per below it looks like some of these might be reasonably be
over-ridden (eg you can override mapred.child.java.opts but not
mapred.child.ulimit).
Would be great if hadoop-site.xml was pulled out into a separate file so users
could see the template and easily update it with specific values they want to
set.
>> On Jul 21, 1:59 am, "Bradford (LusciousPear)"
>> <[email protected]> wrote:
>>> It looks like sometimes, setting something in my Flow's jobconf is not
>>> making it to the nodes.
>>>
>>> For example:
>>>
>>> flow.getJobConf().set("mapred.child.ulimit", "177772100000");
>>> flow.getJobConf().set("mapred.child.java.opts", "-Xmx1024m -Xms1024m -
>>> XX:+UseConcMarkSweepGC");
>>>
>>> If I look at the job.xml for that task, I'll see:
>>> mapred.child.ulimit 1126400
>>> mapred.child.java.opts -Xmx1024m -Xms1024m -XX:+UseConcMarkSweepGC
>>>
>>> Any ideas?
>>>
>>> -B
>>
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