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https://issues.apache.org/jira/browse/MAPREDUCE-3730?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13215975#comment-13215975
]
Hudson commented on MAPREDUCE-3730:
-----------------------------------
Integrated in Hadoop-Common-trunk-Commit #1774 (See
[https://builds.apache.org/job/Hadoop-Common-trunk-Commit/1774/])
MAPREDUCE-3730. Modified RM to allow restarted NMs to be able to join the
cluster without waiting for expiry. Contributed by Jason Lowe. (Revision
1293436)
Result = SUCCESS
vinodkv :
http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1293436
Files :
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ResourceTrackerService.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmnode/RMNodeEventType.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmnode/RMNodeImpl.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmnode/RMNodeReconnectEvent.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/CapacityScheduler.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/fifo/FifoScheduler.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/MockNodes.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestFifoScheduler.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestResourceTrackerService.java
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/capacity/TestCapacityScheduler.java
> Allow restarted NM to rejoin cluster before RM expires it
> ---------------------------------------------------------
>
> Key: MAPREDUCE-3730
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3730
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: mrv2, resourcemanager
> Affects Versions: 0.23.1, 0.24.0
> Reporter: Jason Lowe
> Assignee: Jason Lowe
> Priority: Minor
> Fix For: 0.23.2
>
> Attachments: MAPREDUCE-3730.patch, MAPREDUCE-3730.patch,
> MAPREDUCE-3730.patch
>
>
> When a node in the RUNNING state (healthy or unhealthy) is rebooted, the
> resourcemanager rejects the nodemanager's registration request as a duplicate
> because it is convinced that the nodemanager is already running on that node.
> It won't allow that node to rejoin the cluster until the node expiration
> time elapses which is 10min+ by default. We should allow the NM to rejoin
> the cluster if it re-registers within the expiration timeout.
> Note that this problem occurs with NMs that are configured to specific ports.
> If ephemeral ports are used then a NM reboot "works" because the RM thinks
> the NM registration is for a new node. See the discussions in MAPREDUCE-3070
> and MAPREDUCE-3363.
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