HFileReplicator (Apache HBase 1.4.11 API)

java.lang.Object
- org.apache.hadoop.hbase.replication.regionserver.HFileReplicator

```
@InterfaceAudience.Private
public class HFileReplicator
extends Object
```
It is used for replicating HFile entries. It will first copy parallely all the hfiles to a local staging directory and then it will use (LoadIncrementalHFiles to prepare a collection of LoadIncrementalHFiles.LoadQueueItem which will finally be loaded(replicated) into the table of this cluster.

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`REPLICATION_BULKLOAD_COPY_HFILES_PERTHREAD_DEFAULT`
`static String`	`REPLICATION_BULKLOAD_COPY_HFILES_PERTHREAD_KEY` Number of hfiles to copy per thread during replication
`static int`	`REPLICATION_BULKLOAD_COPY_MAXTHREADS_DEFAULT`
`static String`	`REPLICATION_BULKLOAD_COPY_MAXTHREADS_KEY` Maximum number of threads to allow in pool to copy hfiles during replication

Constructor Summary

Constructors
Constructor and Description
`HFileReplicator(org.apache.hadoop.conf.Configuration sourceClusterConf, String sourceBaseNamespaceDirPath, String sourceHFileArchiveDirPath, Map<String,List<Pair<byte[],List<String>>>> tableQueueMap, org.apache.hadoop.conf.Configuration conf, Connection connection, List<String> sourceClusterIds)`

Method Summary

Methods
Modifier and Type Method and Description

Void replicate()
- Methods inherited from class java.lang.Object
  clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods
Modifier and Type	Method and Description
`Void`	`replicate()`

Field Detail
- REPLICATION_BULKLOAD_COPY_MAXTHREADS_KEY
```
public static final String REPLICATION_BULKLOAD_COPY_MAXTHREADS_KEY
```
  Maximum number of threads to allow in pool to copy hfiles during replication
  
  See Also:
  Constant Field Values
- REPLICATION_BULKLOAD_COPY_MAXTHREADS_DEFAULT
```
public static final int REPLICATION_BULKLOAD_COPY_MAXTHREADS_DEFAULT
```
  See Also:
  Constant Field Values
- REPLICATION_BULKLOAD_COPY_HFILES_PERTHREAD_KEY
```
public static final String REPLICATION_BULKLOAD_COPY_HFILES_PERTHREAD_KEY
```
  Number of hfiles to copy per thread during replication
  
  See Also:
  Constant Field Values
- REPLICATION_BULKLOAD_COPY_HFILES_PERTHREAD_DEFAULT
```
public static final int REPLICATION_BULKLOAD_COPY_HFILES_PERTHREAD_DEFAULT
```
  See Also:
  Constant Field Values

Constructor Detail

HFileReplicator

public HFileReplicator(org.apache.hadoop.conf.Configuration sourceClusterConf,
               String sourceBaseNamespaceDirPath,
               String sourceHFileArchiveDirPath,
               Map<String,List<Pair<byte[],List<String>>>> tableQueueMap,
               org.apache.hadoop.conf.Configuration conf,
               Connection connection,
               List<String> sourceClusterIds)
                throws IOException

Throws:: IOException

Method Detail

replicate

public Void replicate()
               throws IOException

Throws:: IOException

Class HFileReplicator

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

REPLICATION_BULKLOAD_COPY_MAXTHREADS_KEY

REPLICATION_BULKLOAD_COPY_MAXTHREADS_DEFAULT

REPLICATION_BULKLOAD_COPY_HFILES_PERTHREAD_KEY

REPLICATION_BULKLOAD_COPY_HFILES_PERTHREAD_DEFAULT

Constructor Detail

HFileReplicator

Method Detail

replicate