Package org.apache.hadoop.ozone.container.common.utils

Class HddsVolumeUtil

java.lang.Object

org.apache.hadoop.ozone.container.common.utils.HddsVolumeUtil

public final class HddsVolumeUtil
extends Object

A util class for HddsVolume.

Method Summary

Modifier and Type	Method	Description
static String	getHddsRoot(String volumeRoot)	Get hddsRoot from volume root.
static void	initPerDiskDBStore(String containerDBPath, org.apache.hadoop.hdds.conf.ConfigurationSource conf, boolean readOnly)	Initialize db instance, rocksdb will load the existing instance if present and format a new one if not.
static void	loadAllHddsVolumeDbStore(MutableVolumeSet hddsVolumeSet, MutableVolumeSet dbVolumeSet, boolean readOnly, org.slf4j.Logger logger)	Load already formatted db instances for all HddsVolumes.

Methods inherited from class java.lang.Object

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

Method Details

getHddsRoot

public static String getHddsRoot(String volumeRoot)

Get hddsRoot from volume root. If volumeRoot points to hddsRoot, it is returned as is. For a volumeRoot /data/disk1, the hddsRoot is /data/disk1/hdds.

Parameters:

volumeRoot - root of the volume.

Returns:

hddsRoot of the volume.

initPerDiskDBStore

public static void initPerDiskDBStore(String containerDBPath,
 org.apache.hadoop.hdds.conf.ConfigurationSource conf,
 boolean readOnly)
                               throws IOException

Initialize db instance, rocksdb will load the existing instance if present and format a new one if not.

Parameters:

containerDBPath -

conf -

Throws:

IOException

loadAllHddsVolumeDbStore

public static void loadAllHddsVolumeDbStore(MutableVolumeSet hddsVolumeSet,
 MutableVolumeSet dbVolumeSet,
 boolean readOnly,
 org.slf4j.Logger logger)

Load already formatted db instances for all HddsVolumes.

Parameters:

hddsVolumeSet -

dbVolumeSet -

logger -