org.apache.hadoop.hdfs.server.namenode

类 NamenodeFsck

java.lang.Object

org.apache.hadoop.hdfs.server.namenode.NamenodeFsck

public class NamenodeFsck
extends Object

This class provides rudimentary checking of DFS volumes for errors and sub-optimal conditions.

The tool scans all files and directories, starting from an indicated root path. The following abnormal conditions are detected and handled:

• files with blocks that are completely missing from all datanodes.
  
• files with under-replicated or over-replicated blocks

Additionally, the tool collects a detailed overall DFS statistics, and optionally can print detailed statistics on block locations and replication factors of each file.

字段概要

字段

限定符和类型	字段和说明
static String	CORRUPT_STATUS
static String	FAILURE_STATUS
static String	HEALTHY_STATUS
static org.apache.commons.logging.Log	LOG
static String	NONEXISTENT_STATUS

方法概要

方法

限定符和类型	方法和说明
void	fsck() Check files on DFS, starting from the indicated path.

从类继承的方法 java.lang.Object

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

字段详细资料

LOG

public static final org.apache.commons.logging.Log LOG

CORRUPT_STATUS

public static final String CORRUPT_STATUS

另请参阅:

常量字段值

HEALTHY_STATUS

public static final String HEALTHY_STATUS

另请参阅:

常量字段值

NONEXISTENT_STATUS

public static final String NONEXISTENT_STATUS

另请参阅:

常量字段值

FAILURE_STATUS

public static final String FAILURE_STATUS

另请参阅:

常量字段值

方法详细资料

fsck

public void fsck()

Check files on DFS, starting from the indicated path.