Package org.apache.accumulo.core.util.compaction

Class ExternalCompactionUtil

java.lang.Object

org.apache.accumulo.core.util.compaction.ExternalCompactionUtil

public class ExternalCompactionUtil
extends Object

Constructor Summary

Constructors

Constructor	Description
ExternalCompactionUtil()

Method Summary

Modifier and Type	Method	Description
static void	cancelCompaction(ClientContext context, HostAndPort compactorAddr, String ecid)
static int	countCompactors(String queueName, ClientContext context)
static Optional<HostAndPort>	findCompactionCoordinator(ClientContext context)
static List<ActiveCompaction>	getActiveCompaction(HostAndPort compactor, ClientContext context)
static Collection<ExternalCompactionId>	getCompactionIdsRunningOnCompactors(ClientContext context)
static List<RunningCompaction>	getCompactionsRunningOnCompactors(ClientContext context)	This method returns information from the Compactor about the job that is currently running.
static Map<String,List<HostAndPort>>	getCompactorAddrs(ClientContext context)
static String	getHostPortString(HostAndPort address)	Utility for returning the address of a service in the form host:port
static TExternalCompactionJob	getRunningCompaction(HostAndPort compactorAddr, ClientContext context)	Get the compaction currently running on the Compactor

Methods inherited from class java.lang.Object

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

Constructor Detail

ExternalCompactionUtil

public ExternalCompactionUtil()

Method Detail

getHostPortString

public static String getHostPortString(HostAndPort address)

Utility for returning the address of a service in the form host:port

Parameters:

address - HostAndPort of service

Returns:

host and port

findCompactionCoordinator

public static Optional<HostAndPort> findCompactionCoordinator(ClientContext context)

Returns:

Optional HostAndPort of Coordinator node if found

getCompactorAddrs

public static Map<String,List<HostAndPort>> getCompactorAddrs(ClientContext context)

Returns:

map of queue names to compactor addresses

getActiveCompaction

public static List<ActiveCompaction> getActiveCompaction(HostAndPort compactor,
                                                         ClientContext context)
                                                  throws ThriftSecurityException

Parameters:

compactor - compactor address

context - client context

Returns:

list of active compaction

Throws:

ThriftSecurityException - tserver permission error

getRunningCompaction

public static TExternalCompactionJob getRunningCompaction(HostAndPort compactorAddr,
                                                          ClientContext context)

Get the compaction currently running on the Compactor

Parameters:

compactorAddr - compactor address

context - context

Returns:

external compaction job or null if none running

getCompactionsRunningOnCompactors

public static List<RunningCompaction> getCompactionsRunningOnCompactors(ClientContext context)

This method returns information from the Compactor about the job that is currently running. The RunningCompactions are not fully populated. This method is used from the CompactionCoordinator on a restart to re-populate the set of running compactions on the compactors.

Parameters:

context - server context

Returns:

map of compactor and external compaction jobs

getCompactionIdsRunningOnCompactors

public static Collection<ExternalCompactionId> getCompactionIdsRunningOnCompactors(ClientContext context)

countCompactors

public static int countCompactors(String queueName,
                                  ClientContext context)

cancelCompaction

public static void cancelCompaction(ClientContext context,
                                    HostAndPort compactorAddr,
                                    String ecid)