Field Detail

• CF_RENAME_PROP

  public static final String CF_RENAME_PROP

  See Also:

  Constant Field Values

• BULK_OUTPUT_CONF_KEY

  public static final String BULK_OUTPUT_CONF_KEY

  See Also:

  Constant Field Values

• FILTER_CLASS_CONF_KEY

  public static final String FILTER_CLASS_CONF_KEY

  See Also:

  Constant Field Values

• FILTER_ARGS_CONF_KEY

  public static final String FILTER_ARGS_CONF_KEY

  See Also:

  Constant Field Values

• TABLE_NAME

  public static final String TABLE_NAME

  See Also:

  Constant Field Values

• WAL_DURABILITY

  public static final String WAL_DURABILITY

  See Also:

  Constant Field Values

Constructor Detail

• Import

  public Import()

Method Detail

• instantiateFilter

  public static Filter instantiateFilter(org.apache.hadoop.conf.Configuration conf)

  Create a Filter to apply to all incoming keys (KeyValues) to optionally not include in the job output

  Parameters:

  conf - Configuration from which to load the filter

  Returns:

  the filter to use for the task, or null if no filter to should be used

  Throws:

  IllegalArgumentException - if the filter is misconfigured

• filterKv

  public static Cell filterKv(Filter filter,
              Cell kv)
                       throws IOException

  Attempt to filter out the keyvalue

  Parameters:

  kv - KeyValue on which to apply the filter

  Returns:

  null if the key should not be written, otherwise returns the original KeyValue

  Throws:

  IOException

• configureCfRenaming

  public static void configureCfRenaming(org.apache.hadoop.conf.Configuration conf,
                         Map<String,String> renameMap)

  Sets a configuration property with key CF_RENAME_PROP in conf that tells the mapper how to rename column families.

  Alternately, instead of calling this function, you could set the configuration key CF_RENAME_PROP yourself. The value should look like

  srcCf1:destCf1,srcCf2:destCf2,....

  . This would have the same effect on the mapper behavior.

  Parameters:

  conf - the Configuration in which the CF_RENAME_PROP key will be set

  renameMap - a mapping from source CF names to destination CF names

• addFilterAndArguments

  public static void addFilterAndArguments(org.apache.hadoop.conf.Configuration conf,
                           Class<? extends Filter> clazz,
                           List<String> filterArgs)
                                    throws IOException

  Add a Filter to be instantiated on import

  Parameters:

  conf - Configuration to update (will be passed to the job)

  clazz - Filter subclass to instantiate on the server.

  filterArgs - List of arguments to pass to the filter on instantiation

  Throws:

  IOException

• createSubmittableJob

  public static org.apache.hadoop.mapreduce.Job createSubmittableJob(org.apache.hadoop.conf.Configuration conf,
                                                     String[] args)
                                                              throws IOException

  Sets up the actual job.

  Parameters:

  conf - The current configuration.

  args - The command line parameters.

  Returns:

  The newly created job.

  Throws:

  IOException - When setting up the job fails.

• flushRegionsIfNecessary

  public static void flushRegionsIfNecessary(org.apache.hadoop.conf.Configuration conf)
                                      throws IOException,
                                             InterruptedException

  If the durability is set to Durability.SKIP_WAL and the data is imported to hbase, we need to flush all the regions of the table as the data is held in memory and is also not present in the Write Ahead Log to replay in scenarios of a crash. This method flushes all the regions of the table in the scenarios of import data to hbase with Durability.SKIP_WAL

  Throws:

  IOException

  InterruptedException

• main

  public static void main(String[] args)
                   throws Exception

  Main entry point.

  Parameters:

  args - The command line parameters.

  Throws:

  Exception - When running the job fails.