Package org.apache.hadoop.yarn.server.timeline.util

Class LeveldbUtils

java.lang.Object
org.apache.hadoop.yarn.server.timeline.util.LeveldbUtils
public class LeveldbUtils extends Object

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Class
    Description
    static class 
    LeveldbUtils.KeyBuilder
    A string builder utility for building timeline server leveldb keys.
    static class 
    LeveldbUtils.KeyParser
     

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final org.apache.hadoop.fs.permission.FsPermission
    LEVELDB_DIR_UMASK
    Default permission mask for the level db dir

  • Constructor Summary

    Constructors
    Constructor
    Description
    LeveldbUtils()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    static org.iq80.leveldb.DB
    loadOrRepairLevelDb(org.fusesource.leveldbjni.JniDBFactory factory, org.apache.hadoop.fs.Path dbPath, org.iq80.leveldb.Options options)
     
    static boolean
    prefixMatches(byte[] prefix, int prefixlen, byte[] b)
    Returns true if the byte array begins with the specified prefix.

    Methods inherited from class java.lang.Object

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

  • Field Details

    • LEVELDB_DIR_UMASK

      public static final org.apache.hadoop.fs.permission.FsPermission LEVELDB_DIR_UMASK
      Default permission mask for the level db dir

  • Constructor Details

    • LeveldbUtils

      public LeveldbUtils()

  • Method Details

    • prefixMatches

      public static boolean prefixMatches(byte[] prefix, int prefixlen, byte[] b)
      Returns true if the byte array begins with the specified prefix.

    • loadOrRepairLevelDb

      public static org.iq80.leveldb.DB loadOrRepairLevelDb(org.fusesource.leveldbjni.JniDBFactory factory, org.apache.hadoop.fs.Path dbPath, org.iq80.leveldb.Options options) throws IOException
      Throws:
      IOException