Package 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 distributed) Accumulo instance

Field Summary

Fields

Modifier and Type	Field	Description
protected String	accumuloPath
protected String	accumuloServicePath
protected RemoteShellOptions	options

Constructor Summary

Constructors

Constructor	Description
StandaloneClusterControl(String accumuloHome, String clientAccumuloConfDir, String serverAccumuloConfDir, String clientCmdPrefix, String serverCmdPrefix)

Method Summary

Modifier and Type	Method	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>	execWithStdout(Class<?> clz, String[] args)	Execute the given class against the cluster with the provided arguments and waits for completion.
protected File	getClientConfDir()
protected List<String>	getHosts(File f)	Read the provided file and return all lines which don't start with a '#' character
protected List<String>	getHosts(String fn)	Read hosts in file named by 'fn' in Accumulo conf dir
protected String	getPid(ServerType server, String accumuloHome, String hostname)
protected String[]	getPidCommand(ServerType server, String accumuloHome)
protected String	getProcessString(ServerType server)
protected File	getServerConfDir()
void	kill(ServerType server, String hostname)	Send SIGKILL to the given process on the host
void	resume(ServerType server, String hostname)	Send SIGCONT to the given process on the host
void	setGoalState(String goalState)	Wrapper around SetGoalState
void	signal(ServerType server, String hostname, String signal)	Send the provided signal to the process on the host
void	start(ServerType server, String hostname)	Start the given process on the host
void	startAllServers(ServerType server)	Starts all occurrences of the given server
void	stop(ServerType server, String hostname)	Stop the given process on the host
void	stopAllServers(ServerType server)	Stops all occurrences of the given server
void	suspend(ServerType 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

options

protected RemoteShellOptions options

accumuloServicePath

protected String accumuloServicePath

accumuloPath

protected String accumuloPath

Constructor Detail

StandaloneClusterControl

public StandaloneClusterControl(String accumuloHome,
                                String clientAccumuloConfDir,
                                String serverAccumuloConfDir,
                                String clientCmdPrefix,
                                String serverCmdPrefix)

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

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

setGoalState

public void setGoalState(String goalState)
                  throws IOException

Wrapper around SetGoalState

Parameters:

goalState - The goal state to set

Throws:

IOException - If SetGoalState returns a non-zero result

startAllServers

public void startAllServers(ServerType 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(ServerType 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(ServerType 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(ServerType 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(ServerType 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(ServerType 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(ServerType 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(ServerType 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(ServerType server,
                        String accumuloHome,
                        String hostname)
                 throws IOException

Throws:

IOException

getPidCommand

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

getProcessString

protected String getProcessString(ServerType server)

getClientConfDir

protected File getClientConfDir()

getServerConfDir

protected File getServerConfDir()

getHosts

protected List<String> getHosts(String fn)
                         throws IOException

Read hosts in file named by 'fn' in Accumulo conf dir

Throws:

IOException

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