Package org.apache.hadoop.hdfs.server.federation.store.impl

Class DisabledNameserviceStoreImpl

java.lang.Object

org.apache.hadoop.hdfs.server.federation.store.RecordStore<R>

org.apache.hadoop.hdfs.server.federation.store.CachedRecordStore<DisabledNameservice>

org.apache.hadoop.hdfs.server.federation.store.DisabledNameserviceStore

org.apache.hadoop.hdfs.server.federation.store.impl.DisabledNameserviceStoreImpl

All Implemented Interfaces:

StateStoreCache

@Private
@Evolving
public class DisabledNameserviceStoreImpl
extends DisabledNameserviceStore

Implementation of DisabledNameserviceStore.

Constructor Summary

Constructors

Constructor	Description
DisabledNameserviceStoreImpl(StateStoreDriver driver)

Method Summary

Modifier and Type	Method	Description
boolean	disableNameservice(String nsId)	Disable a name service.
boolean	enableNameservice(String nsId)	Enable a name service.
Set<String>	getDisabledNameservices()	Get a list of disabled name services.

Methods inherited from class org.apache.hadoop.hdfs.server.federation.store.CachedRecordStore

getCachedRecords, getCachedRecordsAndTimeStamp, loadCache, overrideExpiredRecord, overrideExpiredRecords

Methods inherited from class org.apache.hadoop.hdfs.server.federation.store.RecordStore

getDriver, getRecordClass, newInstance

Methods inherited from class java.lang.Object

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

Constructor Details

DisabledNameserviceStoreImpl

public DisabledNameserviceStoreImpl(StateStoreDriver driver)

Method Details

disableNameservice

public boolean disableNameservice(String nsId)
                           throws IOException

Description copied from class: DisabledNameserviceStore

Disable a name service.

Specified by:

disableNameservice in class DisabledNameserviceStore

Parameters:

nsId - Identifier of the name service.

Returns:

If the name service was successfully disabled.

Throws:

IOException - If the state store could not be queried.

enableNameservice

public boolean enableNameservice(String nsId)
                          throws IOException

Description copied from class: DisabledNameserviceStore

Enable a name service.

Specified by:

enableNameservice in class DisabledNameserviceStore

Parameters:

nsId - Identifier of the name service.

Returns:

If the name service was successfully brought back.

Throws:

IOException - If the state store could not be queried.

getDisabledNameservices

public Set<String> getDisabledNameservices()
                                    throws IOException

Description copied from class: DisabledNameserviceStore

Get a list of disabled name services.

Specified by:

getDisabledNameservices in class DisabledNameserviceStore

Returns:

List of disabled name services.

Throws:

IOException - If the state store could not be queried.