org.apache.hadoop.yarn.nodelabels
Class NodeLabelsStore

java.lang.Object
  org.apache.hadoop.yarn.nodelabels.NodeLabelsStore

All Implemented Interfaces:

Closeable

Direct Known Subclasses:

FileSystemNodeLabelsStore

public abstract class NodeLabelsStore
extends Object
implements Closeable

Field Summary

protected org.apache.hadoop.conf.Configuration	conf
protected CommonNodeLabelsManager	mgr

Constructor Summary

NodeLabelsStore(CommonNodeLabelsManager mgr)

Method Summary

CommonNodeLabelsManager	getNodeLabelsManager()
void	init(org.apache.hadoop.conf.Configuration conf)
abstract void	recover() Recover labels and node to labels mappings from store
abstract void	removeClusterNodeLabels(Collection<String> labels) Remove labels
abstract void	storeNewClusterNodeLabels(Set<String> label) Store new labels
abstract void	updateNodeToLabelsMappings(Map<org.apache.hadoop.yarn.api.records.NodeId,Set<String>> nodeToLabels) Store node -> label

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.io.Closeable

close

Field Detail

mgr

protected final CommonNodeLabelsManager mgr

conf

protected org.apache.hadoop.conf.Configuration conf

Constructor Detail

NodeLabelsStore

public NodeLabelsStore(CommonNodeLabelsManager mgr)

Method Detail

updateNodeToLabelsMappings

public abstract void updateNodeToLabelsMappings(Map<org.apache.hadoop.yarn.api.records.NodeId,Set<String>> nodeToLabels)
                                         throws IOException

Store node -> label

Throws:

IOException

storeNewClusterNodeLabels

public abstract void storeNewClusterNodeLabels(Set<String> label)
                                        throws IOException

Store new labels

Throws:

IOException

removeClusterNodeLabels

public abstract void removeClusterNodeLabels(Collection<String> labels)
                                      throws IOException

Remove labels

Throws:

IOException

recover

public abstract void recover()
                      throws IOException

Recover labels and node to labels mappings from store

Parameters:

conf -

Throws:

IOException

init

public void init(org.apache.hadoop.conf.Configuration conf)
          throws Exception

Throws:

Exception

getNodeLabelsManager

public CommonNodeLabelsManager getNodeLabelsManager()