org.apache.hadoop.hdfs.server.namenode

Class NameNodeResourceChecker

java.lang.Object

org.apache.hadoop.hdfs.server.namenode.NameNodeResourceChecker

public class NameNodeResourceChecker
extends Object

NameNodeResourceChecker provides a method - hasAvailableDiskSpace - which will return true if and only if the NameNode has disk space available on all volumes which are configured to be checked. Volumes containing file system name/edits dirs are added by default, and arbitrary extra volumes may be configured as well.

Constructor Summary

Constructors

Constructor and Description
NameNodeResourceChecker(org.apache.hadoop.conf.Configuration conf) Create a NameNodeResourceChecker, which will check the name dirs and edits dirs set in conf.

Method Summary

Methods inherited from class java.lang.Object

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

Constructor Detail

NameNodeResourceChecker

public NameNodeResourceChecker(org.apache.hadoop.conf.Configuration conf)
                        throws IOException

Create a NameNodeResourceChecker, which will check the name dirs and edits dirs set in conf.

Parameters:

conf -

Throws:

IOException