Package org.apache.accumulo.server.fs

Class VolumeUtil

java.lang.Object

org.apache.accumulo.server.fs.VolumeUtil

public class VolumeUtil
extends Object

Utility methods for managing absolute URIs contained in Accumulo metadata.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	VolumeUtil.TabletFiles

Constructor Summary

Constructors

Constructor	Description
VolumeUtil()

Method Summary

Modifier and Type	Method	Description
static String	removeTrailingSlash(String path)
static org.apache.hadoop.fs.Path	removeTrailingSlash(org.apache.hadoop.fs.Path path)
static org.apache.hadoop.fs.Path	switchVolume(String path, VolumeManager.FileType ft, List<Pair<org.apache.hadoop.fs.Path,org.apache.hadoop.fs.Path>> replacements)
protected static LogEntry	switchVolumes(LogEntry le, List<Pair<org.apache.hadoop.fs.Path,org.apache.hadoop.fs.Path>> replacements)
static VolumeUtil.TabletFiles	updateTabletVolumes(ServerContext context, ServiceLock zooLock, KeyExtent extent, VolumeUtil.TabletFiles tabletFiles, boolean replicate)	This method does two things.

Methods inherited from class java.lang.Object

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

Constructor Details

VolumeUtil

public VolumeUtil()

Method Details

removeTrailingSlash

public static String removeTrailingSlash(String path)

removeTrailingSlash

public static org.apache.hadoop.fs.Path removeTrailingSlash(org.apache.hadoop.fs.Path path)

switchVolume

public static org.apache.hadoop.fs.Path switchVolume(String path,
 VolumeManager.FileType ft,
 List<Pair<org.apache.hadoop.fs.Path,org.apache.hadoop.fs.Path>> replacements)

switchVolumes

protected static LogEntry switchVolumes(LogEntry le,
 List<Pair<org.apache.hadoop.fs.Path,org.apache.hadoop.fs.Path>> replacements)

updateTabletVolumes

public static VolumeUtil.TabletFiles updateTabletVolumes(ServerContext context,
 ServiceLock zooLock,
 KeyExtent extent,
 VolumeUtil.TabletFiles tabletFiles,
 boolean replicate)

This method does two things. First, it switches any volumes a tablet is using that are configured in instance.volumes.replacements. Second, if a tablet dir is no longer configured for use it chooses a new tablet directory.