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

[#1]

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

[#2]

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

[#3]

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

http://archive.cloudera.com/cdh5/cdh/5/hadoop/hadoop-mapreduce-client/hadoop-mapreduce-client-core/m... 

I don't know where I configuration wrong

[#4 · Accepted solution]

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?