weblogic.cluster.singleton
Class MigratableServerService

java.lang.Object
  AbstractServerService
      weblogic.cluster.singleton.MigratableServerService

All Implemented Interfaces:

PropertyChangeListener, EventListener, LeaseLostListener, LeaseObtainedListener, weblogic.timers.NakedTimerListener, weblogic.timers.TimerListener

public class MigratableServerService
extends AbstractServerService
implements LeaseLostListener, PropertyChangeListener, LeaseObtainedListener, weblogic.timers.NakedTimerListener

MigratableServerService registers ServerMigrationCoordinator with the MBean server and creates the ClusterMaster Leasing implementation. Health is proved every ClusterMBean.getHealthCheckIntervalMillis() ms (default 10s), and if health could not be proved for ClusterMBean.getHealthCheckPeriodsUntilFencing() (default 3) mastership is abdicated.

MigratableServerService

public MigratableServerService()

initialize

public void initialize()
                throws ServiceFailureException

Throws:

ServiceFailureException

getLeasingType

public String getLeasingType()

theOne

public static MigratableServerService theOne()

isClusterMaster

public boolean isClusterMaster()

isSingletonMaster

public boolean isSingletonMaster()

findSingletonMaster

public String findSingletonMaster()
                           throws LeasingException

Throws:

LeasingException

getSingletonMasterRemote

public SingletonMonitorRemote getSingletonMasterRemote()
                                                throws LeasingException

Throws:

LeasingException

getSingletonMasterRemote

public SingletonMonitorRemote getSingletonMasterRemote(int retryCount)
                                                throws LeasingException

Throws:

LeasingException

findURLOfUnconnectedServer

public static String findURLOfUnconnectedServer(String server)

start

public void start()
           throws ServiceFailureException

Throws:

ServiceFailureException

timerExpired

public void timerExpired(weblogic.timers.Timer timer)

Regularly called by the timer service. Attempts to find the owner of the lease for CR372903. If another server owns the lease then force shutdown. Otherwise get the lease when we can.

Specified by:

timerExpired in interface weblogic.timers.TimerListener

Parameters:

timer - The timer that expired and caused the listener to be invoked.

stop

public void stop()
          throws ServiceFailureException

Throws:

ServiceFailureException

halt

public void halt()
          throws ServiceFailureException

Throws:

ServiceFailureException

propertyChange

public void propertyChange(PropertyChangeEvent event)

Specified by:

propertyChange in interface PropertyChangeListener

getCurrentMachine

public weblogic.management.configuration.MachineMBean getCurrentMachine()

onRelease

public void onRelease()

Specified by:

onRelease in interface LeaseLostListener

onAcquire

public void onAcquire(String leaseName)

Specified by:

onAcquire in interface LeaseObtainedListener

onException

public void onException(Exception e,
                        String leaseName)

Specified by:

onException in interface LeaseObtainedListener

notifySingletonMasterShutdown

public void notifySingletonMasterShutdown()