org.apache.hadoop.hbase

Class HBaseClusterManager

java.lang.Object

Configured

org.apache.hadoop.hbase.HBaseClusterManager

@InterfaceAudience.Private
public class HBaseClusterManager
extends Configured

A default cluster manager for HBase. Uses SSH, and hbase shell scripts to manage the cluster. Assumes Unix-like commands are available like 'ps', 'kill', etc. Also assumes the user running the test has enough "power" to start & stop servers on the remote machines (for example, the test user could be the same user as the user the daemon is running as)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	org.apache.hadoop.hbase.ClusterManager.ServiceType Type of the service daemon
protected class	HBaseClusterManager.RemoteShell Executes commands over SSH

Field Summary

Fields

Modifier and Type	Field and Description
protected static Log	LOG
protected RetryCounterFactory	retryCounterFactory

Constructor Summary

Constructors

Constructor and Description
HBaseClusterManager()

Method Summary

Modifier and Type	Method and Description
protected org.apache.hadoop.hbase.HBaseClusterManager.CommandProvider	getCommandProvider(org.apache.hadoop.hbase.ClusterManager.ServiceType service)
boolean	isRunning(org.apache.hadoop.hbase.ClusterManager.ServiceType service, String hostname, int port) Returns whether the service is running on the remote host.
void	kill(org.apache.hadoop.hbase.ClusterManager.ServiceType service, String hostname, int port) Kills the service running on the given host
void	restart(org.apache.hadoop.hbase.ClusterManager.ServiceType service, String hostname, int port) Restart the service on the given host
void	resume(org.apache.hadoop.hbase.ClusterManager.ServiceType service, String hostname, int port) Resumes the services running on the given host
void	setConf(Configuration conf)
void	signal(org.apache.hadoop.hbase.ClusterManager.ServiceType service, String signal, String hostname)
void	start(org.apache.hadoop.hbase.ClusterManager.ServiceType service, String hostname, int port) Start the service on the given host
void	stop(org.apache.hadoop.hbase.ClusterManager.ServiceType service, String hostname, int port) Stop the service on the given host
void	suspend(org.apache.hadoop.hbase.ClusterManager.ServiceType service, String hostname, int port) Suspends the service running on the given host

Methods inherited from class java.lang.Object

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

Field Detail

LOG

protected static final Log LOG

retryCounterFactory

protected RetryCounterFactory retryCounterFactory

Constructor Detail

HBaseClusterManager

public HBaseClusterManager()

Method Detail

setConf

public void setConf(Configuration conf)

getCommandProvider

protected org.apache.hadoop.hbase.HBaseClusterManager.CommandProvider getCommandProvider(org.apache.hadoop.hbase.ClusterManager.ServiceType service)

start

public void start(org.apache.hadoop.hbase.ClusterManager.ServiceType service,
                  String hostname,
                  int port)
           throws IOException

Start the service on the given host

Throws:

IOException

stop

public void stop(org.apache.hadoop.hbase.ClusterManager.ServiceType service,
                 String hostname,
                 int port)
          throws IOException

Stop the service on the given host

Throws:

IOException

restart

public void restart(org.apache.hadoop.hbase.ClusterManager.ServiceType service,
                    String hostname,
                    int port)
             throws IOException

Restart the service on the given host

Throws:

IOException

signal

public void signal(org.apache.hadoop.hbase.ClusterManager.ServiceType service,
                   String signal,
                   String hostname)
            throws IOException

Throws:

IOException

isRunning

public boolean isRunning(org.apache.hadoop.hbase.ClusterManager.ServiceType service,
                         String hostname,
                         int port)
                  throws IOException

Returns whether the service is running on the remote host. This only checks whether the service still has a pid.

Throws:

IOException

kill

public void kill(org.apache.hadoop.hbase.ClusterManager.ServiceType service,
                 String hostname,
                 int port)
          throws IOException

Kills the service running on the given host

Throws:

IOException

suspend

public void suspend(org.apache.hadoop.hbase.ClusterManager.ServiceType service,
                    String hostname,
                    int port)
             throws IOException

Suspends the service running on the given host

Throws:

IOException

resume

public void resume(org.apache.hadoop.hbase.ClusterManager.ServiceType service,
                   String hostname,
                   int port)
            throws IOException

Resumes the services running on the given host

Throws:

IOException