Hi,

If you are using the release which doesn't have this patch  
https://issues.apache.org/jira/browse/MAPREDUCE-5036, then 8080 port will be 
used by Node Manager shuffle handler service.

You can change this default port '8080' to some other value using the 
configuration "mapreduce.shuffle.port" in all Node Mangers yarn-site.xml file.

Thanks
Devaraj k

From: ch huang [mailto:justlo...@gmail.com]
Sent: 11 July 2013 07:46
To: user@hadoop.apache.org
Subject: yarn Failed to bind to: 0.0.0.0/0.0.0.0:8080

i have 3 NM, on the box of one of NM ,the 8080 PORT has already ocuppied by 
tomcat,so i want to change all NM 8080 port to 8090,but problem is
i do not know 8080 port is control by what option in yarn ,anyone can help??

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