org.apache.accumulo.cluster

Interface ClusterControl

All Known Implementing Classes:

MiniAccumuloClusterControl, StandaloneClusterControl

public interface ClusterControl

Basic functionality required to control an Accumulo cluster

Method Summary

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.
Map.Entry<Integer,String>	execWithStdout(Class<?> clz, String[] args) Execute the given class against the cluster with the provided arguments and waits for completion.
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	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

Method Detail

exec

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

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

Throws:

IOException

execWithStdout

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

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.

Throws:

IOException

adminStopAll

void adminStopAll()
           throws IOException

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

Throws:

IOException

startAllServers

void startAllServers(ServerType server)
              throws IOException

Starts all occurrences of the given server

Throws:

IOException

start

void start(ServerType server,
           String hostname)
    throws IOException

Start the given process on the host

Throws:

IOException

stopAllServers

void stopAllServers(ServerType server)
             throws IOException

Stops all occurrences of the given server

Throws:

IOException

stop

void stop(ServerType server,
          String hostname)
   throws IOException

Stop the given process on the host

Throws:

IOException

signal

void signal(ServerType server,
            String hostname,
            String signal)
     throws IOException

Send the provided signal to the process on the host

Throws:

IOException

suspend

void suspend(ServerType server,
             String hostname)
      throws IOException

Send SIGSTOP to the given process on the host

Throws:

IOException

resume

void resume(ServerType server,
            String hostname)
     throws IOException

Send SIGCONT to the given process on the host

Throws:

IOException

kill

void kill(ServerType server,
          String hostname)
   throws IOException

Send SIGKILL to the given process on the host

Throws:

IOException