本文整理了Java中org.apache.samza.zk.ZkSessionMetrics类的一些代码示例，展示了ZkSessionMetrics类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。ZkSessionMetrics类的具体详情如下：
包路径：org.apache.samza.zk.ZkSessionMetrics
类名称：ZkSessionMetrics

ZkSessionMetrics介绍

暂无

代码示例

代码示例来源：origin: apache/samza

public ZkSessionMetrics(MetricsRegistry registry) {
  super(registry);
  this.zkSessionExpirations = newCounter("zk-session-expirations");
  this.zkSessionDisconnects = newCounter("zk-session-disconnects");
  this.zkSessionErrors = newCounter("zk-session-errors");
  this.zkNewSessions = newCounter("zk-new-sessions");
  this.zkSyncConnected = newCounter("zk-sync-connected");
 }
}

代码示例来源：origin: apache/samza

@Test
public void testShouldRemoveBufferedEventsInDebounceQueueOnSessionExpiration() {
 ZkKeyBuilder keyBuilder = Mockito.mock(ZkKeyBuilder.class);
 ZkClient mockZkClient = Mockito.mock(ZkClient.class);
 when(keyBuilder.getJobModelVersionBarrierPrefix()).thenReturn(TEST_BARRIER_ROOT);
 ZkUtils zkUtils = Mockito.mock(ZkUtils.class);
 when(zkUtils.getKeyBuilder()).thenReturn(keyBuilder);
 when(zkUtils.getZkClient()).thenReturn(mockZkClient);
 when(zkUtils.getJobModel(TEST_JOB_MODEL_VERSION)).thenReturn(new JobModel(new MapConfig(), new HashMap<>()));
 ScheduleAfterDebounceTime mockDebounceTimer = Mockito.mock(ScheduleAfterDebounceTime.class);
 ZkJobCoordinator zkJobCoordinator = Mockito.spy(new ZkJobCoordinator("TEST_PROCESSOR_ID", new MapConfig(), new NoOpMetricsRegistry(), zkUtils));
 zkJobCoordinator.debounceTimer = mockDebounceTimer;
 zkJobCoordinator.zkSessionMetrics = new ZkSessionMetrics(new MetricsRegistryMap());
 final ZkSessionStateChangedListener zkSessionStateChangedListener = zkJobCoordinator.new ZkSessionStateChangedListener();
 zkSessionStateChangedListener.handleStateChanged(Watcher.Event.KeeperState.Expired);
 verify(zkUtils).incGeneration();
 verify(mockDebounceTimer).cancelAllScheduledActions();
 verify(mockDebounceTimer).scheduleAfterDebounceTime(Mockito.eq("ZK_SESSION_EXPIRED"), Mockito.eq(0L), Mockito.any(Runnable.class));
 Assert.assertEquals(1, zkJobCoordinator.zkSessionMetrics.zkSessionExpirations.getCount());
}

代码示例来源：origin: apache/samza

@Test
public void testZookeeperSessionMetricsAreUpdatedCoorrectly() {
 ZkKeyBuilder keyBuilder = Mockito.mock(ZkKeyBuilder.class);
 ZkClient mockZkClient = Mockito.mock(ZkClient.class);
 when(keyBuilder.getJobModelVersionBarrierPrefix()).thenReturn(TEST_BARRIER_ROOT);
 ZkUtils zkUtils = Mockito.mock(ZkUtils.class);
 when(zkUtils.getKeyBuilder()).thenReturn(keyBuilder);
 when(zkUtils.getZkClient()).thenReturn(mockZkClient);
 when(zkUtils.getJobModel(TEST_JOB_MODEL_VERSION)).thenReturn(new JobModel(new MapConfig(), new HashMap<>()));
 ScheduleAfterDebounceTime mockDebounceTimer = Mockito.mock(ScheduleAfterDebounceTime.class);
 ZkJobCoordinator zkJobCoordinator = Mockito.spy(new ZkJobCoordinator("TEST_PROCESSOR_ID", new MapConfig(), new NoOpMetricsRegistry(), zkUtils));
 zkJobCoordinator.debounceTimer = mockDebounceTimer;
 zkJobCoordinator.zkSessionMetrics = new ZkSessionMetrics(new MetricsRegistryMap());
 final ZkSessionStateChangedListener zkSessionStateChangedListener = zkJobCoordinator.new ZkSessionStateChangedListener();
 zkSessionStateChangedListener.handleStateChanged(Watcher.Event.KeeperState.Disconnected);
 zkSessionStateChangedListener.handleStateChanged(Watcher.Event.KeeperState.SyncConnected);
 zkSessionStateChangedListener.handleStateChanged(Watcher.Event.KeeperState.AuthFailed);
 Assert.assertEquals(1, zkJobCoordinator.zkSessionMetrics.zkSessionErrors.getCount());
 zkSessionStateChangedListener.handleSessionEstablishmentError(new SamzaException("Test exception"));
 Assert.assertEquals(1, zkJobCoordinator.zkSessionMetrics.zkSessionDisconnects.getCount());
 Assert.assertEquals(1, zkJobCoordinator.zkSessionMetrics.zkSyncConnected.getCount());
 Assert.assertEquals(2, zkJobCoordinator.zkSessionMetrics.zkSessionErrors.getCount());
}

代码示例来源：origin: apache/samza

ZkJobCoordinator(String processorId, Config config, MetricsRegistry metricsRegistry, ZkUtils zkUtils) {
 this.config = config;
 this.metrics = new ZkJobCoordinatorMetrics(metricsRegistry);
 this.zkSessionMetrics = new ZkSessionMetrics(metricsRegistry);
 this.processorId = processorId;
 this.zkUtils = zkUtils;
 // setup a listener for a session state change
 // we are mostly interested in "session closed" and "new session created" events
 zkUtils.getZkClient().subscribeStateChanges(new ZkSessionStateChangedListener());
 leaderElector = new ZkLeaderElector(processorId, zkUtils);
 leaderElector.setLeaderElectorListener(new LeaderElectorListenerImpl());
 this.debounceTimeMs = new JobConfig(config).getDebounceTimeMs();
 debounceTimer = new ScheduleAfterDebounceTime(processorId);
 debounceTimer.setScheduledTaskCallback(throwable -> {
   LOG.error("Received exception in debounce timer! Stopping the job coordinator", throwable);
   stop();
  });
 this.barrier =  new ZkBarrierForVersionUpgrade(zkUtils.getKeyBuilder().getJobModelVersionBarrierPrefix(), zkUtils, new ZkBarrierListenerImpl(), debounceTimer);
 systemAdmins = new SystemAdmins(config);
 streamMetadataCache = new StreamMetadataCache(systemAdmins, METADATA_CACHE_TTL_MS, SystemClock.instance());
 LocationIdProviderFactory locationIdProviderFactory = Util.getObj(new JobConfig(config).getLocationIdProviderFactory(), LocationIdProviderFactory.class);
 LocationIdProvider locationIdProvider = locationIdProviderFactory.getLocationIdProvider(config);
 this.locationId = locationIdProvider.getLocationId();
}