org.apache.accumulo.core.client.admin

Interface ReplicationOperations

public interface ReplicationOperations

Supports replication configuration

Since:

1.7.0

Method Summary

Modifier and Type	Method and Description
void	addPeer(String name, String replicaType) Defines a cluster with the given name and the given name system.
void	drain(String tableName) Waits for a table to be fully replicated, given the state of files pending replication for the provided table at the point in time which this method is invoked.
void	drain(String tableName, Set<String> files) Given the provided set of files that are pending replication for a table, wait for those files to be fully replicated to all configured peers.
Set<String>	referencedFiles(String tableName) Gets all of the referenced files for a table from the metadata table.
void	removePeer(String name) Removes a cluster with the given name.

Method Detail

addPeer

void addPeer(String name,
             String replicaType)
      throws AccumuloException,
             AccumuloSecurityException,
             PeerExistsException

Defines a cluster with the given name and the given name system.

Parameters:

name - Unique name for the cluster

replicaType - Class name to use to replicate the data

Throws:

AccumuloException

AccumuloSecurityException

PeerExistsException

removePeer

void removePeer(String name)
         throws AccumuloException,
                AccumuloSecurityException,
                PeerNotFoundException

Removes a cluster with the given name.

Parameters:

name - Name of the cluster to remove

Throws:

AccumuloException

AccumuloSecurityException

PeerNotFoundException

drain

void drain(String tableName)
    throws AccumuloException,
           AccumuloSecurityException,
           TableNotFoundException

Waits for a table to be fully replicated, given the state of files pending replication for the provided table at the point in time which this method is invoked.

Parameters:

tableName - The table to wait for

Throws:

AccumuloException

AccumuloSecurityException

TableNotFoundException

drain

void drain(String tableName,
           Set<String> files)
    throws AccumuloException,
           AccumuloSecurityException,
           TableNotFoundException

Given the provided set of files that are pending replication for a table, wait for those files to be fully replicated to all configured peers. This allows for the accurate calculation when a table, at a given point in time, has been fully replicated.

Parameters:

tableName - The table to wait for

Throws:

AccumuloException

AccumuloSecurityException

TableNotFoundException

referencedFiles

Set<String> referencedFiles(String tableName)
                     throws AccumuloException,
                            AccumuloSecurityException,
                            TableNotFoundException

Gets all of the referenced files for a table from the metadata table. The result of this method is intended to be directly supplied to drain(String, Set). This helps determine when all data from a given point in time has been fully replicated.

This also allows callers to get the Set of files for a table at some time, and later provide that Set to drain(String,Set) to wait for all of those files to be replicated.

Throws:

AccumuloException

AccumuloSecurityException

TableNotFoundException