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https://issues.apache.org/jira/browse/MAPREDUCE-3251?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13184017#comment-13184017
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Hudson commented on MAPREDUCE-3251:
-----------------------------------
Integrated in Hadoop-Hdfs-trunk #922 (See
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/922/])
MAPREDUCE-3251. Network ACLs can prevent some clients to talk to MR AM.
Improved the earlier patch to not to JobHistoryServer repeatedly. Contributed
by Anupam Seth.
vinodkv :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1229787
Files :
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/MRJobConfig.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/main/java/org/apache/hadoop/mapred/ClientServiceDelegate.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestClientServiceDelegate.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-common/src/main/resources/yarn-default.xml
* /hadoop/common/trunk/hadoop-mapreduce-project/src/java/mapred-default.xml
> Network ACLs can prevent some clients to talk to MR ApplicationMaster
> ---------------------------------------------------------------------
>
> Key: MAPREDUCE-3251
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3251
> Project: Hadoop Map/Reduce
> Issue Type: Task
> Components: mrv2
> Affects Versions: 0.23.0
> Reporter: Anupam Seth
> Assignee: Anupam Seth
> Priority: Critical
> Fix For: 0.23.1
>
> Attachments: MAPREDUCE-3251-20120110.txt,
> MAPREDUCE-3251-branch_0_23.patch, MAPREDUCE-3251-branch_0_23.patch,
> MAPREDUCE-3251-branch_0_23.patch, MAPREDUCE-3251-branch_0_23.patch,
> MAPREDUCE-3251-branch_0_23_incremental_fix.patch,
> MAPREDUCE-3251-branch_0_23_incremental_fix_2.patch,
> MAPREDUCE-3251_branch-0_23_preliminary.txt
>
>
> In 0.20.xxx, the JobClient while polling goes to JT to get the job status.
> With YARN, AM can be launched on any port and the client will have to have
> ACL open to that port to talk to AM and get the job status. When the client
> is within the same grid network access to AM is not a problem. But some
> applications may have one installation per set of clusters and may launch
> jobs even across such sets (on job trackers in another set of clusters). For
> that to work only the JT port needs to be open currently. In case of YARN,
> all ports will have to be opened up for things to work. That would be a
> security no-no.
> There are two possible solutions:
> 1) Make the job client only talk to RM (as an option) to get the job
> status.
> 2) Limit the range of ports AM can listen on.
> Option 2) may not be favorable as there is no direct OS API to find a free
> port.
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