Field Detail

• DEFAULT_SPLIT_POLICY_CLASS

  private static final Class<? extends RegionSplitPolicy> DEFAULT_SPLIT_POLICY_CLASS

• region

  protected HRegion region

  The region configured for this split policy.

Constructor Detail

• RegionSplitPolicy

  public RegionSplitPolicy()

Method Detail

• configureForRegion

  protected void configureForRegion(HRegion region)

  Upon construction, this method will be called with the region to be governed. It will be called once and only once.

• shouldSplit

  protected abstract boolean shouldSplit()

  Returns:

  true if the specified region should be split.

• getSplitPoint

  protected byte[] getSplitPoint()

  Returns:

  the key at which the region should be split, or null if it cannot be split. This will only be called if shouldSplit previously returned true.

• create

  public static RegionSplitPolicy create(HRegion region,
                         org.apache.hadoop.conf.Configuration conf)
                                  throws IOException

  Create the RegionSplitPolicy configured for the given table.

  Parameters:

  region -

  conf -

  Returns:

  a RegionSplitPolicy

  Throws:

  IOException

• getSplitPolicyClass

  public static Class<? extends RegionSplitPolicy> getSplitPolicyClass(HTableDescriptor htd,
                                                       org.apache.hadoop.conf.Configuration conf)
                                                                throws IOException

  Throws:

  IOException

• skipStoreFileRangeCheck

  @Deprecated
  protected boolean skipStoreFileRangeCheck()

  Deprecated. Use skipStoreFileRangeCheck(String)} instead
  In HRegionFileSystem.splitStoreFile(org.apache.hadoop.hbase.HRegionInfo, String, StoreFile, byte[], boolean, RegionSplitPolicy) we are not creating the split reference if split row not lies in the StoreFile range. But in some use cases we may need to create the split reference even when the split row not lies in the range. This method can be used to decide, whether to skip the the StoreFile range check or not.

  Returns:

  whether to skip the StoreFile range check or not

• skipStoreFileRangeCheck

  protected boolean skipStoreFileRangeCheck(String familyName)

  See skipStoreFileRangeCheck() javadoc.

  Parameters:

  familyName -

  Returns:

  whether to skip the StoreFile range check or not