org.apache.hadoop.hbase

Interface ClusterManager

All Superinterfaces:

org.apache.hadoop.conf.Configurable

All Known Implementing Classes:

CoprocClusterManager, HBaseClusterManager, RESTApiClusterManager, ZNodeClusterManager

@InterfaceAudience.Private
interface ClusterManager
extends org.apache.hadoop.conf.Configurable

ClusterManager is an api to manage servers in a distributed environment. It provides services for starting / stopping / killing Hadoop/HBase daemons. Concrete implementations provide actual functionality for carrying out deployment-specific tasks.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	ClusterManager.ServiceType Type of the service daemon

Method Summary

Modifier and Type	Method and Description
boolean	isRunning(ClusterManager.ServiceType service, String hostname, int port) Returns whether the service is running on the remote host.
void	kill(ClusterManager.ServiceType service, String hostname, int port) Kills the service running on the given host
void	restart(ClusterManager.ServiceType service, String hostname, int port) Restart the service on the given host
void	resume(ClusterManager.ServiceType service, String hostname, int port) Resumes the services running on the given host
void	start(ClusterManager.ServiceType service, String hostname, int port) Start the service on the given host
void	stop(ClusterManager.ServiceType service, String hostname, int port) Stop the service on the given host
void	suspend(ClusterManager.ServiceType service, String hostname, int port) Suspends the service running on the given host

Methods inherited from interface org.apache.hadoop.conf.Configurable

getConf, setConf

Method Detail

start

void start(ClusterManager.ServiceType service,
           String hostname,
           int port)
    throws IOException

Start the service on the given host

Throws:

IOException

stop

void stop(ClusterManager.ServiceType service,
          String hostname,
          int port)
   throws IOException

Stop the service on the given host

Throws:

IOException

restart

void restart(ClusterManager.ServiceType service,
             String hostname,
             int port)
      throws IOException

Restart the service on the given host

Throws:

IOException

kill

void kill(ClusterManager.ServiceType service,
          String hostname,
          int port)
   throws IOException

Kills the service running on the given host

Throws:

IOException

suspend

void suspend(ClusterManager.ServiceType service,
             String hostname,
             int port)
      throws IOException

Suspends the service running on the given host

Throws:

IOException

resume

void resume(ClusterManager.ServiceType service,
            String hostname,
            int port)
     throws IOException

Resumes the services running on the given host

Throws:

IOException

isRunning

boolean isRunning(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