Allow MR AppMaster to limit ephemeral port range.
-------------------------------------------------
Key: MAPREDUCE-4079
URL: https://issues.apache.org/jira/browse/MAPREDUCE-4079
Project: Hadoop Map/Reduce
Issue Type: Improvement
Components: mr-am, mrv2
Affects Versions: 0.23.2, 2.0.0
Reporter: Robert Joseph Evans
Assignee: Robert Joseph Evans
Priority: Blocker
Having the MapReduce Application Masters bind to any ephemeral port makes it
very difficult to setup ACLs. mapreduce.job.am-access-disabled from
MAPREDUCE-3251 is not a practical permanent solution for all jobs. Especially
for tools like pig where they are not aware of mapreduce.job.am-access-disabled
and may deal with it properly.
We should add in a config option that would allow someone to restrict the range
of ports that the MR-AM can bind to. It will slow down startup in some cases
because we will have to probe for open ports instead of just asking the OS to
find one for us. But we can make that conditional on this config so users who
do not set this config do not see any performance degradation.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
