CommonConfigurationKeys (Hadoop 0.20.2-cdh3u4 API)
Date: 2012-05-07

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## org.apache.hadoop.fs
Class CommonConfigurationKeys

    java.lang.Object
      org.apache.hadoop.fs.CommonConfigurationKeys

    public class CommonConfigurationKeys

extends Object

This class contains constants for configuration keys used in the common code.

Field Summary
`static String` | `FS_DEFAULT_NAME_DEFAULT`
`static String` | `FS_DEFAULT_NAME_KEY` See src/core/core-default.xml
`static boolean` | `HADOOP_RELAXED_VERSION_CHECK_DEFAULT`
`static String` | `HADOOP_RELAXED_VERSION_CHECK_KEY` See src/core/core-default.xml
`static String` | `HADOOP_SECURITY_AUTHENTICATION` See src/core/core-default.xml
`static String` | `HADOOP_SECURITY_AUTHORIZATION` See src/core/core-default.xml
`static String` | `HADOOP_SECURITY_GROUP_MAPPING` See src/core/core-default.xml
`static String` | `HADOOP_SECURITY_INSTRUMENTATION_REQUIRES_ADMIN` See core-default.xml
`static String` | `HADOOP_SECURITY_SERVICE_USER_NAME_KEY` See src/core/core-default.xml
`static int` | `IO_COMPRESSION_CODEC_SNAPPY_BUFFERSIZE_DEFAULT` Default value for IO_COMPRESSION_CODEC_SNAPPY_BUFFERSIZE_KEY
`static String` | `IO_COMPRESSION_CODEC_SNAPPY_BUFFERSIZE_KEY` Internal buffer size for Snappy compressor/decompressors
`static int` | `IPC_SERVER_RPC_READ_THREADS_DEFAULT`
`static String` | `IPC_SERVER_RPC_READ_THREADS_KEY`

Constructor Summary
`CommonConfigurationKeys()`

Method Summary

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### FS_DEFAULT_NAME_KEY

    public static final String FS_DEFAULT_NAME_KEY

  See src/core/core-default.xml

  See Also:
    Constant Field Values

### FS_DEFAULT_NAME_DEFAULT

    public static final String FS_DEFAULT_NAME_DEFAULT

See Also:
  Constant Field Values

### HADOOP_SECURITY_GROUP_MAPPING

    public static final String HADOOP_SECURITY_GROUP_MAPPING

  See src/core/core-default.xml

  See Also:
    Constant Field Values

### HADOOP_SECURITY_AUTHENTICATION

    public static final String HADOOP_SECURITY_AUTHENTICATION

  See src/core/core-default.xml

  See Also:
    Constant Field Values

### HADOOP_SECURITY_AUTHORIZATION

    public static final String HADOOP_SECURITY_AUTHORIZATION

  See src/core/core-default.xml

  See Also:
    Constant Field Values

### HADOOP_SECURITY_INSTRUMENTATION_REQUIRES_ADMIN

    public static final String HADOOP_SECURITY_INSTRUMENTATION_REQUIRES_ADMIN

  See core-default.xml

  See Also:
    Constant Field Values

### HADOOP_SECURITY_SERVICE_USER_NAME_KEY

    public static final String HADOOP_SECURITY_SERVICE_USER_NAME_KEY

  See src/core/core-default.xml

  See Also:
    Constant Field Values

### IPC_SERVER_RPC_READ_THREADS_KEY

    public static final String IPC_SERVER_RPC_READ_THREADS_KEY

See Also:
  Constant Field Values

### IPC_SERVER_RPC_READ_THREADS_DEFAULT

    public static final int IPC_SERVER_RPC_READ_THREADS_DEFAULT

See Also:
  Constant Field Values

### IO_COMPRESSION_CODEC_SNAPPY_BUFFERSIZE_KEY

    public static final String IO_COMPRESSION_CODEC_SNAPPY_BUFFERSIZE_KEY

  Internal buffer size for Snappy compressor/decompressors

  See Also:
    Constant Field Values

### IO_COMPRESSION_CODEC_SNAPPY_BUFFERSIZE_DEFAULT

    public static final int IO_COMPRESSION_CODEC_SNAPPY_BUFFERSIZE_DEFAULT

  Default value for IO_COMPRESSION_CODEC_SNAPPY_BUFFERSIZE_KEY

  See Also:
    Constant Field Values

### HADOOP_RELAXED_VERSION_CHECK_KEY

    public static final String HADOOP_RELAXED_VERSION_CHECK_KEY

  See src/core/core-default.xml

  See Also:
    Constant Field Values

### HADOOP_RELAXED_VERSION_CHECK_DEFAULT

    public static final boolean HADOOP_RELAXED_VERSION_CHECK_DEFAULT

See Also:
  Constant Field Values

Constructor Detail

### CommonConfigurationKeys

    public CommonConfigurationKeys()

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