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java.lang.Objectorg.apache.hadoop.service.AbstractService
org.apache.hadoop.yarn.server.resourcemanager.NodesListManager
public class NodesListManager
Nested Class Summary |
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Nested classes/interfaces inherited from interface org.apache.hadoop.service.Service |
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org.apache.hadoop.service.Service.STATE |
Constructor Summary | |
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NodesListManager(RMContext rmContext)
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Method Summary | |
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int |
getUnusableNodes(Collection<RMNode> unUsableNodes)
Provides the currently unusable nodes. |
void |
handle(NodesListManagerEvent event)
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boolean |
isValidNode(String hostName)
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void |
refreshNodes(org.apache.hadoop.conf.Configuration yarnConf)
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protected void |
serviceInit(org.apache.hadoop.conf.Configuration conf)
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Methods inherited from class org.apache.hadoop.service.AbstractService |
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close, getBlockers, getConfig, getFailureCause, getFailureState, getLifecycleHistory, getName, getServiceState, getStartTime, init, isInState, noteFailure, putBlocker, registerGlobalListener, registerServiceListener, removeBlocker, serviceStart, serviceStop, setConfig, start, stop, toString, unregisterGlobalListener, unregisterServiceListener, waitForServiceToStop |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public NodesListManager(RMContext rmContext)
Method Detail |
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protected void serviceInit(org.apache.hadoop.conf.Configuration conf) throws Exception
serviceInit
in class org.apache.hadoop.service.AbstractService
Exception
public void refreshNodes(org.apache.hadoop.conf.Configuration yarnConf) throws IOException
IOException
public boolean isValidNode(String hostName)
public int getUnusableNodes(Collection<RMNode> unUsableNodes)
unUsableNodes
- Collection to which the unusable nodes are added
public void handle(NodesListManagerEvent event)
handle
in interface org.apache.hadoop.yarn.event.EventHandler<NodesListManagerEvent>
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