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YARN-4386. refreshNodesGracefully() should send recommission event to active RMNodes only. Contributed by Kuhu Shukla.

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This commit is contained in:
Junping Du 2016-02-22 07:04:19 -08:00
parent 5e7d4d51f8
commit 3fab88540f
3 changed files with 39 additions and 2 deletions
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3
hadoop-yarn-project/CHANGES.txt
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@ -1433,6 +1433,9 @@ Release 2.8.0 - UNRELEASED
YARN-4654. Yarn node label CLI should parse "=" correctly when trying to
remove all labels on a node. (Naganarasimha G R via rohithsharmaks)
YARN-4386. refreshNodesGracefully() should send recommission event to active
RMNodes only. (Kuhu Shukla via junping_du)
Release 2.7.3 - UNRELEASED
INCOMPATIBLE CHANGES

3
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/NodesListManager.java
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@ -400,8 +400,7 @@ public void refreshNodesGracefully(Configuration conf) throws IOException,
new RMNodeEvent(nodeId, RMNodeEventType.GRACEFUL_DECOMMISSION));
} else {
// Recommissioning the nodes
if (entry.getValue().getState() == NodeState.DECOMMISSIONING
|| entry.getValue().getState() == NodeState.DECOMMISSIONED) {
if (entry.getValue().getState() == NodeState.DECOMMISSIONING) {
this.rmContext.getDispatcher().getEventHandler()
.handle(new RMNodeEvent(nodeId, RMNodeEventType.RECOMMISSION));
}

35
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestResourceTrackerService.java
View File

@ -1269,6 +1269,41 @@ public void testInitDecommMetricNoRegistration() throws Exception {
rm1.stop();
}
@Test
public void testIncorrectRecommission() throws Exception {
//Check decommissioned node not get recommissioned with graceful refresh
Configuration conf = new Configuration();
rm = new MockRM(conf);
rm.start();
MockNM nm1 = rm.registerNode("host1:1234", 5120);
MockNM nm2 = rm.registerNode("host2:5678", 10240);
nm1.nodeHeartbeat(true);
nm2.nodeHeartbeat(true);
File excludeHostFile =
new File(TEMP_DIR + File.separator + "excludeHostFile.txt");
writeToHostsFile(excludeHostFile, "host3", "host2");
conf.set(YarnConfiguration.RM_NODES_EXCLUDE_FILE_PATH,
excludeHostFile.getAbsolutePath());
writeToHostsFile(hostFile, "host1", "host2");
writeToHostsFile(excludeHostFile, "host1");
rm.getNodesListManager().refreshNodesGracefully(conf);
rm.drainEvents();
nm1.nodeHeartbeat(true);
rm.drainEvents();
Assert.assertTrue("Node " + nm1.getNodeId().getHost() +
" should be Decommissioned", rm.getRMContext()
.getInactiveRMNodes().get(nm1.getNodeId()).getState() == NodeState
.DECOMMISSIONED);
writeToHostsFile(excludeHostFile, "");
rm.getNodesListManager().refreshNodesGracefully(conf);
rm.drainEvents();
Assert.assertTrue("Node " + nm1.getNodeId().getHost() +
" should be Decommissioned", rm.getRMContext()
.getInactiveRMNodes().get(nm1.getNodeId()).getState() == NodeState
.DECOMMISSIONED);
rm.stop();
}
private void writeToHostsFile(String... hosts) throws IOException {
writeToHostsFile(hostFile, hosts);
}