Examples of com.sun.sgs.impl.service.watchdog.WatchdogServerImpl

Package com.sun.sgs.impl.service.watchdog

Examples of com.sun.sgs.impl.service.watchdog.WatchdogServerImpl

com.sun.sgs.impl.service.watchdog.WatchdogServerImpl
The {@link WatchdogServer} implementation.
The {@link #WatchdogServerImpl constructor} supports the followingproperties:

Property: com.sun.sgs.impl.service.watchdog.server.port
Default: {@code 44533}
Specifies the network port for the server. This value must be greater than or equal to {@code 0} and no greaterthan {@code 65535}. If the value specified is {@code 0}, then an anonymous port will be chosen. The value chosen will be logged, and can also be accessed with the {@link #getPort getPort} method.
Property: com.sun.sgs.impl.service.watchdog.server.renew.interval
Default: {@code 1000} (one second)
Specifies the renew interval which is returned by the {@link #renewNode renewNode} method). The interval must be greaterthan or equal to {@code 5} milliseconds and less than or equal to{@code 10000} milliseconds (10 seconds).
Property: com.sun.sgs.impl.service.watchdog.server.id.block.size
Default: {@code 256}

Specifies the block size to use when reserving node IDs. The value must be greater than {@code 8}.

Note that this server caches NodeImpls outside the data service to maintain state.

        appProps.setProperty(
                "com.sun.sgs.impl.service.watchdog.timesync.interval",
                "1000");
        addNodes(appProps, 1);


        WatchdogServerImpl watchdogServer = watchdogService.getServer();
        WatchdogService remoteWatchdogService =
                        additionalNodes[0].getWatchdogService();


        // watchdog server and service should initially be sync'd
        long serverTime = watchdogServer.currentAppTimeMillis();
        long serviceTime = remoteWatchdogService.currentAppTimeMillis();
        assertTrue(checkInRange(serverTime,
                                serviceTime,
                                Constants.MAX_CLOCK_GRANULARITY));


        // force watchdog service out of sync
        Field serviceTimeOffset = getField(WatchdogServiceImpl.class,
                                           "timeOffset");
        serviceTimeOffset.set(remoteWatchdogService, 0);
        serverTime = watchdogServer.currentAppTimeMillis();
        serviceTime = remoteWatchdogService.currentAppTimeMillis();
        assertFalse(checkInRange(serverTime,
                                 serviceTime,
                                 Constants.MAX_CLOCK_GRANULARITY));


        // wait for time sync interval and verify service syncs back with server
        Thread.sleep(1000 + Constants.MAX_CLOCK_GRANULARITY);
        serverTime = watchdogServer.currentAppTimeMillis();
        serviceTime = remoteWatchdogService.currentAppTimeMillis();
        assertTrue(checkInRange(serverTime,
                                serviceTime,
                                Constants.MAX_CLOCK_GRANULARITY));
    }

View Full Code Here

        appProps.setProperty(
                "com.sun.sgs.impl.service.watchdog.timesync.interval",
                "1000");
        addNodes(appProps, 1);


        WatchdogServerImpl watchdogServer = watchdogService.getServer();
        WatchdogService remoteWatchdogService =
                        additionalNodes[0].getWatchdogService();


        // watchdog server and service should initially be sync'd
        long serverTime = watchdogServer.currentAppTimeMillis();
        long serviceTime = remoteWatchdogService.currentAppTimeMillis();
        assertTrue(checkInRange(serverTime,
                                serviceTime,
                                Constants.MAX_CLOCK_GRANULARITY));


        // force watchdog service out of sync
        Field serviceTimeOffset = getField(WatchdogServiceImpl.class,
                                           "timeOffset");
        serviceTimeOffset.set(remoteWatchdogService, 0);
        serverTime = watchdogServer.currentAppTimeMillis();
        serviceTime = remoteWatchdogService.currentAppTimeMillis();
        assertFalse(checkInRange(serverTime,
                                 serviceTime,
                                 Constants.MAX_CLOCK_GRANULARITY));


        // wait for time sync interval and verify service syncs back with server
        Thread.sleep(1000 + Constants.MAX_CLOCK_GRANULARITY);
        serverTime = watchdogServer.currentAppTimeMillis();
        serviceTime = remoteWatchdogService.currentAppTimeMillis();
        assertTrue(checkInRange(serverTime,
                                serviceTime,
                                Constants.MAX_CLOCK_GRANULARITY));
    }

View Full Code Here

TOP

Related Classes of com.sun.sgs.impl.service.watchdog.WatchdogServerImpl

com.sun.sgs.impl.sharedutil.PropertiesWrapper

com.sun.sgs.impl.util.AbstractKernelRunnable

com.sun.sgs.impl.util.IdGenerator

com.sun.sgs.profile.ProfileCollector

com.sun.sgs.test.impl.service.watchdog.TestWatchdogServiceImpl

javax.management.Notification

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.