org.jgroups.protocols
Class FD_PING

java.lang.Object
  org.jgroups.stack.Protocol
      org.jgroups.protocols.FD
          org.jgroups.protocols.FD_PING

public class FD_PING
extends FD

Protocol which uses an executable (e.g. /sbin/ping, or a script) to check whether a given host is up or not, taking 1 argument; the host name of the host to be pinged. Property 'cmd' determines the program to be executed (use a fully qualified name if the program is not on the path).

Author:

Bela Ban

Nested Class Summary

protected static class	FD_PING.Pinger
protected class	FD_PING.PingMonitor Executes the ping command.

Nested classes/interfaces inherited from class org.jgroups.protocols.FD

FD.Broadcaster, FD.BroadcastTask, FD.FdHeader, FD.Monitor

Field Summary

Fields inherited from class org.jgroups.protocols.FD

bcast_task, last_ack, local_addr, lock, max_tries, members, monitor_future, num_heartbeats, num_suspect_events, num_tries, ping_dest, pingable_mbrs, suspect_history, timeout, timer

Fields inherited from class org.jgroups.stack.Protocol

down_prot, ergonomics, id, log, name, stack, stats, up_prot

Constructor Summary

FD_PING()

Method Summary

protected FD.Monitor

createMonitor()

Methods inherited from class org.jgroups.protocols.FD

computePingDest, down, getCurrentNumTries, getLocalAddress, getMaxTries, getMembers, getNumberOfHeartbeatsSent, getNumSuspectEventsGenerated, getPingableMembers, getPingDest, getPingDest, getTimeout, init, isMonitorRunning, printSuspectHistory, resetStats, sendHeartbeatResponse, setMaxTries, setTimeout, startFailureDetection, startMonitor, stop, stopFailureDetection, stopMonitor, unsuspect, up, updateTimestamp

Methods inherited from class org.jgroups.stack.Protocol

destroy, dumpStats, enableStats, getConfigurableObjects, getDownProtocol, getDownServices, getId, getIdsAbove, getLevel, getName, getProtocolStack, getSocketFactory, getThreadFactory, getTransport, getUpProtocol, getUpServices, getValue, isErgonomics, printStats, providedDownServices, providedUpServices, requiredDownServices, requiredUpServices, resetStatistics, setDownProtocol, setErgonomics, setId, setLevel, setProtocolStack, setSocketFactory, setUpProtocol, setValue, setValues, start, statsEnabled

Methods inherited from class java.lang.Object

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

Constructor Detail

FD_PING

public FD_PING()

Method Detail

createMonitor

protected FD.Monitor createMonitor()