question Re: add mapreduce-site.xml mapreduce.jobtracker.hosts.filename property in Archives of Support Questions (Read Only)

add mapreduce-site.xml mapreduce.jobtracker.hosts.filename property

zaifendou — Fri, 16 Sep 2022 09:04:35 GMT

I want to add mapreduce.jobtracker.hosts.filename into mapreduce-site.xml by cdh manager 5,but it doesn't work...

<property>
<name>mapreduce.jobtracker.hosts.filename</name>
<value>/home/yoyosys/mrhosts.txt</value>
</property>

mrhosts.txt:

host1

hoost2

Re: add mapreduce-site.xml mapreduce.jobtracker.hosts.filename property

Darren — Mon, 11 Aug 2014 17:56:35 GMT

Why do you want to set this? CM manages the allowed hosts for you (using mapred.hosts).

Re: add mapreduce-site.xml mapreduce.jobtracker.hosts.filename property

zaifendou — Wed, 13 Aug 2014 05:04:07 GMT

in CDH5 this property is mapreduce.jobtracker.hosts.filename

http://archive.cloudera.com/cdh5/cdh/5/hadoop/hadoop-mapreduce-client/hadoop-mapreduce-client-core/mapred-default.xml

I don't know where I configuration wrong

Re: add mapreduce-site.xml mapreduce.jobtracker.hosts.filename property

Darren — Wed, 13 Aug 2014 19:14:51 GMT

mapred.hosts still works in CDH5

It's much easier to have Cloudera Manager handle this file for you, as it will automatically be updated when adding, decommissioning, or removing hosts.

Are you seeing a problem in your cluster due to this property?