Examples with MonitorRunningInstance com.netflix.exhibitor.core.state.MonitorRunningInstance used on opensource projects

Example 1 with MonitorRunningInstance

use of com.netflix.exhibitor.core.state.MonitorRunningInstance in project exhibitor by soabase.

the class ClusterResource method getStatus.

@Path("state")
@GET
@Produces(MediaType.APPLICATION_JSON)
public String getStatus() throws Exception {
    ObjectNode mainNode = JsonNodeFactory.instance.objectNode();
    ObjectNode switchesNode = JsonNodeFactory.instance.objectNode();
    for (ControlPanelTypes type : ControlPanelTypes.values()) {
        switchesNode.put(UIResource.fixName(type), context.getExhibitor().getControlPanelValues().isSet(type));
    }
    mainNode.put("switches", switchesNode);
    MonitorRunningInstance monitorRunningInstance = context.getExhibitor().getMonitorRunningInstance();
    InstanceStateTypes state = monitorRunningInstance.getCurrentInstanceState();
    mainNode.put("state", state.getCode());
    mainNode.put("description", state.getDescription());
    mainNode.put("isLeader", monitorRunningInstance.isCurrentlyLeader());
    return JsonUtil.writeValueAsString(mainNode);
}

Example 2 with MonitorRunningInstance

use of com.netflix.exhibitor.core.state.MonitorRunningInstance in project exhibitor by soabase.

the class TestRollingConfigChange method testFailedQuorum.

@Test
public void testFailedQuorum() throws Exception {
    ServerList serverList = new ServerList("1:one,2:two,3:three");
    RemoteInstanceRequestClient mockClient = new RemoteInstanceRequestClient() {

        @Override
        public void close() throws IOException {
        }

        @Override
        public <T> T getWebResource(URI remoteUri, MediaType type, Class<T> clazz) throws Exception {
            return clazz.cast("foo");
        }
    };
    ActivityLog log = new ActivityLog(100);
    ActivityQueue activityQueue = new ActivityQueue();
    Exhibitor mockExhibitor = Mockito.mock(Exhibitor.class);
    MonitorRunningInstance mockMonitorRunningInstance = makeMockMonitorRunningInstance();
    Mockito.when(mockExhibitor.getMonitorRunningInstance()).thenReturn(mockMonitorRunningInstance);
    Mockito.when(mockExhibitor.getLog()).thenReturn(log);
    Mockito.when(mockExhibitor.getActivityQueue()).thenReturn(activityQueue);
    Mockito.when(mockExhibitor.getThisJVMHostname()).thenReturn("one");
    Mockito.when(mockExhibitor.getRemoteInstanceRequestClient()).thenReturn(mockClient);
    final AtomicLong modified = new AtomicLong(1);
    ConfigProvider provider = new ConfigProvider() {

        private volatile ConfigCollection config = new PropertyBasedInstanceConfig(new Properties(), new Properties());

        @Override
        public void start() throws Exception {
        }

        @Override
        public void close() throws IOException {
        }

        @Override
        public LoadedInstanceConfig loadConfig() throws Exception {
            return new LoadedInstanceConfig(config, modified.get());
        }

        @Override
        public PseudoLock newPseudoLock() throws Exception {
            return null;
        }

        @Override
        public LoadedInstanceConfig storeConfig(ConfigCollection config, long compareVersion) throws Exception {
            this.config = config;
            modified.incrementAndGet();
            return loadConfig();
        }
    };
    InstanceState state = new InstanceState(serverList, InstanceStateTypes.NOT_SERVING, new RestartSignificantConfig(null));
    final AtomicBoolean hasBeenCanceled = new AtomicBoolean(false);
    ConfigManager manager = new ConfigManager(mockExhibitor, provider, 10) {

        @Override
        public synchronized void cancelRollingConfig(CancelMode mode) throws Exception {
            super.cancelRollingConfig(mode);
            hasBeenCanceled.set(true);
        }
    };
    manager.start();
    try {
        Properties properties = new Properties();
        properties.setProperty(PropertyBasedInstanceConfig.toName(StringConfigs.SERVERS_SPEC, PropertyBasedInstanceConfig.ROOT_PROPERTY_PREFIX), serverList.toSpecString());
        PropertyBasedInstanceConfig config = new PropertyBasedInstanceConfig(properties, DefaultProperties.get(null));
        manager.startRollingConfig(config.getRootConfig(), null);
        String hostname = manager.getRollingConfigState().getRollingHostNames().get(0);
        Assert.assertTrue(manager.isRolling());
        RollingReleaseState rollingState = new RollingReleaseState(state, manager.getCollection());
        Assert.assertEquals(rollingState.getCurrentRollingHostname(), hostname);
        Assert.assertNull(manager.getRollingConfigAdvanceAttempt());
        Mockito.when(mockExhibitor.getThisJVMHostname()).thenReturn(hostname);
        for (int i = 0; i < (ConfigManager.DEFAULT_MAX_ATTEMPTS - 1); ++i) {
            long lastModified = modified.get();
            manager.checkRollingConfig(state);
            Assert.assertFalse(modified.get() > lastModified);
            Assert.assertFalse(hasBeenCanceled.get());
        }
        manager.checkRollingConfig(state);
        Assert.assertTrue(hasBeenCanceled.get());
        Assert.assertFalse(manager.isRolling());
    } finally {
        CloseableUtils.closeQuietly(manager);
    }
}

Example 3 with MonitorRunningInstance

use of com.netflix.exhibitor.core.state.MonitorRunningInstance in project exhibitor by soabase.

the class TestRollingConfigChange method testLongQuorumSuccess.

@Test
public void testLongQuorumSuccess() throws Exception {
    ServerList serverList = new ServerList("1:one");
    RemoteInstanceRequestClient mockClient = new RemoteInstanceRequestClient() {

        @Override
        public void close() throws IOException {
        }

        @Override
        public <T> T getWebResource(URI remoteUri, MediaType type, Class<T> clazz) throws Exception {
            throw new Exception();
        }
    };
    ActivityLog log = new ActivityLog(100);
    ActivityQueue activityQueue = new ActivityQueue();
    Exhibitor mockExhibitor = Mockito.mock(Exhibitor.class);
    MonitorRunningInstance mockMonitorRunningInstance = makeMockMonitorRunningInstance();
    Mockito.when(mockExhibitor.getMonitorRunningInstance()).thenReturn(mockMonitorRunningInstance);
    Mockito.when(mockExhibitor.getLog()).thenReturn(log);
    Mockito.when(mockExhibitor.getActivityQueue()).thenReturn(activityQueue);
    Mockito.when(mockExhibitor.getThisJVMHostname()).thenReturn("one");
    Mockito.when(mockExhibitor.getRemoteInstanceRequestClient()).thenReturn(mockClient);
    ConfigProvider provider = new ConfigWrapper(new AtomicLong(1));
    Properties properties = new Properties();
    properties.setProperty(PropertyBasedInstanceConfig.toName(StringConfigs.SERVERS_SPEC, PropertyBasedInstanceConfig.ROOT_PROPERTY_PREFIX), serverList.toSpecString());
    properties.setProperty(PropertyBasedInstanceConfig.toName(StringConfigs.SERVERS_SPEC, PropertyBasedInstanceConfig.ROLLING_PROPERTY_PREFIX), serverList.toSpecString());
    properties.setProperty(PropertyBasedInstanceConfig.PROPERTY_ROLLING_HOSTNAMES, "one");
    properties.setProperty(PropertyBasedInstanceConfig.PROPERTY_ROLLING_HOSTNAMES_INDEX, "0");
    PropertyBasedInstanceConfig config = new PropertyBasedInstanceConfig(properties, DefaultProperties.get(null));
    provider.storeConfig(config, 0);
    final int MAX_ATTEMPTS = 3;
    ConfigManager manager = new ConfigManager(mockExhibitor, provider, 10, MAX_ATTEMPTS);
    manager.start();
    try {
        InstanceState instanceState = new InstanceState(serverList, InstanceStateTypes.NOT_SERVING, new RestartSignificantConfig(null));
        for (int i = 0; i < (MAX_ATTEMPTS - 1); ++i) {
            manager.checkRollingConfig(instanceState);
            Assert.assertTrue(manager.isRolling());
        }
        manager.checkRollingConfig(instanceState);
        Assert.assertFalse(manager.isRolling());
    } finally {
        CloseableUtils.closeQuietly(manager);
    }
}

Example 4 with MonitorRunningInstance

use of com.netflix.exhibitor.core.state.MonitorRunningInstance in project exhibitor by soabase.

the class TestRollingConfigChange method makeMockMonitorRunningInstance.

private MonitorRunningInstance makeMockMonitorRunningInstance() {
    final AtomicInteger restartCounter = new AtomicInteger(1);
    MonitorRunningInstance mockMonitorRunningInstance = Mockito.mock(MonitorRunningInstance.class);
    Mockito.when(mockMonitorRunningInstance.getRestartCount()).thenAnswer(new Answer<Integer>() {

        @Override
        public Integer answer(InvocationOnMock invocation) throws Throwable {
            return restartCounter.getAndIncrement();
        }
    });
    return mockMonitorRunningInstance;
}

Example 5 with MonitorRunningInstance

use of com.netflix.exhibitor.core.state.MonitorRunningInstance in project exhibitor by soabase.

the class TestRollingConfigChange method testAllDownInstances.

@Test
public void testAllDownInstances() throws Exception {
    ServerList serverList = new ServerList("1:one,2:two,3:three");
    RemoteInstanceRequestClient mockClient = new RemoteInstanceRequestClient() {

        @Override
        public void close() throws IOException {
        }

        @Override
        public <T> T getWebResource(URI remoteUri, MediaType type, Class<T> clazz) throws Exception {
            throw new Exception();
        }
    };
    ActivityLog log = new ActivityLog(100);
    ActivityQueue activityQueue = new ActivityQueue();
    Exhibitor mockExhibitor = Mockito.mock(Exhibitor.class);
    MonitorRunningInstance mockMonitorRunningInstance = makeMockMonitorRunningInstance();
    Mockito.when(mockExhibitor.getMonitorRunningInstance()).thenReturn(mockMonitorRunningInstance);
    Mockito.when(mockExhibitor.getLog()).thenReturn(log);
    Mockito.when(mockExhibitor.getActivityQueue()).thenReturn(activityQueue);
    Mockito.when(mockExhibitor.getThisJVMHostname()).thenReturn("_xxxx_");
    Mockito.when(mockExhibitor.getRemoteInstanceRequestClient()).thenReturn(mockClient);
    ConfigProvider provider = new ConfigWrapper(new AtomicLong(1));
    ConfigManager manager = new ConfigManager(mockExhibitor, provider, 10, 1);
    manager.start();
    try {
        Properties properties = new Properties();
        properties.setProperty(PropertyBasedInstanceConfig.toName(StringConfigs.SERVERS_SPEC, PropertyBasedInstanceConfig.ROOT_PROPERTY_PREFIX), serverList.toSpecString());
        PropertyBasedInstanceConfig config = new PropertyBasedInstanceConfig(properties, DefaultProperties.get(null));
        manager.startRollingConfig(config.getRootConfig(), null);
        Assert.assertFalse(manager.isRolling());
    } finally {
        CloseableUtils.closeQuietly(manager);
    }
}