Package org.apache.hadoop.yarn.nodelabels

Class NonAppendableFSNodeLabelStore

java.lang.Object

org.apache.hadoop.yarn.nodelabels.store.AbstractFSNodeStore<CommonNodeLabelsManager>

org.apache.hadoop.yarn.nodelabels.FileSystemNodeLabelsStore

org.apache.hadoop.yarn.nodelabels.NonAppendableFSNodeLabelStore

All Implemented Interfaces:

Closeable, AutoCloseable, NodeLabelsStore

public class NonAppendableFSNodeLabelStore
extends FileSystemNodeLabelsStore

Store implementation for Non Appendable File Store.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.yarn.nodelabels.store.AbstractFSNodeStore

AbstractFSNodeStore.StoreSchema

Field Summary

Fields

Modifier and Type	Field	Description
protected static final org.slf4j.Logger	LOG

Fields inherited from class org.apache.hadoop.yarn.nodelabels.FileSystemNodeLabelsStore

DEFAULT_DIR_NAME, EDITLOG_FILENAME, MIRROR_FILENAME

Fields inherited from class org.apache.hadoop.yarn.nodelabels.store.AbstractFSNodeStore

fs, fsWorkingPath, manager

Constructor Summary

Constructors

Constructor	Description
NonAppendableFSNodeLabelStore()

Method Summary

Modifier and Type	Method	Description
void	close()
void	recover()	Recover labels and node to labels mappings from store, but if ignoreNodeToLabelsMappings is true then node to labels mappings should not be recovered.
void	removeClusterNodeLabels(Collection<String> labels)	Remove labels.
void	storeNewClusterNodeLabels(List<org.apache.hadoop.yarn.api.records.NodeLabel> labels)	Store new labels.
void	updateNodeToLabelsMappings(Map<org.apache.hadoop.yarn.api.records.NodeId,Set<String>> nodeToLabels)	Store node -> label.

Methods inherited from class org.apache.hadoop.yarn.nodelabels.FileSystemNodeLabelsStore

init

Methods inherited from class org.apache.hadoop.yarn.nodelabels.store.AbstractFSNodeStore

closeFSStore, ensureAppendEditLogFile, ensureCloseEditlogFile, getFs, getFsWorkingPath, getStoreType, initFileSystem, initStore, loadFromMirror, loadManagerFromEditLog, recoverFromStore, setFs, writeToLog

Methods inherited from class java.lang.Object

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

Field Details

LOG

protected static final org.slf4j.Logger LOG

Constructor Details

NonAppendableFSNodeLabelStore

public NonAppendableFSNodeLabelStore()

Method Details

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class FileSystemNodeLabelsStore

Throws:

IOException

recover

public void recover()
             throws org.apache.hadoop.yarn.exceptions.YarnException,
IOException

Description copied from interface: NodeLabelsStore

Recover labels and node to labels mappings from store, but if ignoreNodeToLabelsMappings is true then node to labels mappings should not be recovered. In case of Distributed NodeLabels setup ignoreNodeToLabelsMappings will be set to true and recover will be invoked as RM will collect the node labels from NM through registration/HB.

Specified by:

recover in interface NodeLabelsStore

Overrides:

recover in class FileSystemNodeLabelsStore

Throws:

org.apache.hadoop.yarn.exceptions.YarnException - exceptions from yarn servers.

IOException - io error occur.

updateNodeToLabelsMappings

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

Description copied from interface: NodeLabelsStore

Store node -> label.

Specified by:

updateNodeToLabelsMappings in interface NodeLabelsStore

Overrides:

updateNodeToLabelsMappings in class FileSystemNodeLabelsStore

Parameters:

nodeToLabels - node to labels mapping.

Throws:

IOException - io error occur.

storeNewClusterNodeLabels

public void storeNewClusterNodeLabels(List<org.apache.hadoop.yarn.api.records.NodeLabel> labels)
                               throws IOException

Description copied from interface: NodeLabelsStore

Store new labels.

Specified by:

storeNewClusterNodeLabels in interface NodeLabelsStore

Overrides:

storeNewClusterNodeLabels in class FileSystemNodeLabelsStore

Parameters:

labels - labels.

Throws:

IOException - io error occur.

removeClusterNodeLabels

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

Description copied from interface: NodeLabelsStore

Remove labels.

Specified by:

removeClusterNodeLabels in interface NodeLabelsStore

Overrides:

removeClusterNodeLabels in class FileSystemNodeLabelsStore

Parameters:

labels - labels.

Throws:

IOException - io error occur.