org.apache.accumulo.cluster.standalone

Class StandaloneClusterControl

java.lang.Object

org.apache.accumulo.cluster.standalone.StandaloneClusterControl

All Implemented Interfaces:

ClusterControl

public class StandaloneClusterControl
extends Object
implements ClusterControl

Use the RemoteShell to control a standalone (possibly distibuted) Accumulo instance

Field Summary

Fields

Modifier and Type	Field and Description
protected String	accumuloConfDir
protected String	accumuloHome
protected String	accumuloPath
protected RemoteShellOptions	options
protected String	startServerPath
protected String	toolPath

Constructor Summary

Constructors

Constructor and Description
StandaloneClusterControl()
StandaloneClusterControl(String accumuloHome, String accumuloConfDir)

Method Summary

Methods

Modifier and Type	Method and Description
void	adminStopAll() Issue an orderly shutdown of the cluster, throws an exception if it fails to return successfully (return value of 0).
int	exec(Class<?> clz, String[] args) Execute the given class against the cluster with the provided arguments and waits for completion.
protected Map.Entry<Integer,String>	exec(String hostname, String[] command)
Map.Entry<Integer,String>	execMapreduceWithStdout(Class<?> clz, String[] args)
Map.Entry<Integer,String>	execWithStdout(Class<?> clz, String[] args) Execute the given class against the cluster with the provided arguments and waits for completion.
protected File	getConfDir()
protected List<String>	getHosts(File f) Read the provided file and return all lines which don't start with a '#' character
protected String	getPid(ClusterServerType server, String accumuloHome, String hostname)
protected String[]	getPidCommand(ClusterServerType server, String accumuloHome)
protected String	getProcessString(ClusterServerType server)
void	kill(ClusterServerType server, String hostname) Send SIGKILL to the given process on the host
void	resume(ClusterServerType server, String hostname) Send SIGCONT to the given process on the host
void	signal(ClusterServerType server, String hostname, String signal) Send the provided signal to the process on the host
void	start(ClusterServerType server, String hostname) Start the given process on the host
void	startAllServers(ClusterServerType server) Starts all occurrences of the given server
void	stop(ClusterServerType server, String hostname) Stop the given process on the host
void	stopAllServers(ClusterServerType server) Stops all occurrences of the given server
void	suspend(ClusterServerType server, String hostname) Send SIGSTOP to the given process on the host

Methods inherited from class java.lang.Object

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

Field Detail

accumuloHome

protected String accumuloHome

accumuloConfDir

protected String accumuloConfDir

options

protected RemoteShellOptions options

startServerPath

protected String startServerPath

accumuloPath

protected String accumuloPath

toolPath

protected String toolPath

Constructor Detail

StandaloneClusterControl

public StandaloneClusterControl()

StandaloneClusterControl

public StandaloneClusterControl(String accumuloHome,
                        String accumuloConfDir)

Method Detail

exec

protected Map.Entry<Integer,String> exec(String hostname,
                             String[] command)
                                  throws IOException

Throws:

IOException

exec

public int exec(Class<?> clz,
       String[] args)
         throws IOException

Description copied from interface: ClusterControl

Execute the given class against the cluster with the provided arguments and waits for completion. Returns the exit code of the process.

Specified by:

exec in interface ClusterControl

Throws:

IOException

execWithStdout

public Map.Entry<Integer,String> execWithStdout(Class<?> clz,
                                       String[] args)
                                         throws IOException

Description copied from interface: ClusterControl

Execute the given class against the cluster with the provided arguments and waits for completion. Returns the exit code of the process with the stdout.

Specified by:

execWithStdout in interface ClusterControl

Throws:

IOException

execMapreduceWithStdout

public Map.Entry<Integer,String> execMapreduceWithStdout(Class<?> clz,
                                                String[] args)
                                                  throws IOException

Throws:

IOException

adminStopAll

public void adminStopAll()
                  throws IOException

Description copied from interface: ClusterControl

Issue an orderly shutdown of the cluster, throws an exception if it fails to return successfully (return value of 0).

Specified by:

adminStopAll in interface ClusterControl

Throws:

IOException

startAllServers

public void startAllServers(ClusterServerType server)
                     throws IOException

Description copied from interface: ClusterControl

Starts all occurrences of the given server

Specified by:

startAllServers in interface ClusterControl

Throws:

IOException

start

public void start(ClusterServerType server,
         String hostname)
           throws IOException

Description copied from interface: ClusterControl

Start the given process on the host

Specified by:

start in interface ClusterControl

Throws:

IOException

stopAllServers

public void stopAllServers(ClusterServerType server)
                    throws IOException

Description copied from interface: ClusterControl

Stops all occurrences of the given server

Specified by:

stopAllServers in interface ClusterControl

Throws:

IOException

stop

public void stop(ClusterServerType server,
        String hostname)
          throws IOException

Description copied from interface: ClusterControl

Stop the given process on the host

Specified by:

stop in interface ClusterControl

Throws:

IOException

signal

public void signal(ClusterServerType server,
          String hostname,
          String signal)
            throws IOException

Description copied from interface: ClusterControl

Send the provided signal to the process on the host

Specified by:

signal in interface ClusterControl

Throws:

IOException

suspend

public void suspend(ClusterServerType server,
           String hostname)
             throws IOException

Description copied from interface: ClusterControl

Send SIGSTOP to the given process on the host

Specified by:

suspend in interface ClusterControl

Throws:

IOException

resume

public void resume(ClusterServerType server,
          String hostname)
            throws IOException

Description copied from interface: ClusterControl

Send SIGCONT to the given process on the host

Specified by:

resume in interface ClusterControl

Throws:

IOException

kill

public void kill(ClusterServerType server,
        String hostname)
          throws IOException

Description copied from interface: ClusterControl

Send SIGKILL to the given process on the host

Specified by:

kill in interface ClusterControl

Throws:

IOException

getPid

protected String getPid(ClusterServerType server,
            String accumuloHome,
            String hostname)
                 throws IOException

Throws:

IOException

getPidCommand

protected String[] getPidCommand(ClusterServerType server,
                     String accumuloHome)

getProcessString

protected String getProcessString(ClusterServerType server)

getConfDir

protected File getConfDir()

getHosts

protected List<String> getHosts(File f)
                         throws IOException

Read the provided file and return all lines which don't start with a '#' character

Throws:

IOException