[ https://issues.apache.org/jira/browse/MAPREDUCE-4079?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Robert Joseph Evans updated MAPREDUCE-4079: ------------------------------------------- Target Version/s: 0.23.2, 2.0.0 (was: 2.0.0, 0.23.2) Status: Patch Available (was: Open) > 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 > Attachments: MR-4079-full-branch-0.23.txt, > MR-4079-full-branch-0.23.txt, MR-4079-full-branch-0.23.txt, > MR-4079-trunk.txt, MR-4079-trunk.txt, MR-4079-trunk.txt, MR-4079-trunk.txt > > > 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