public async Task testSimple() { CuratorZookeeperClient client = new CuratorZookeeperClient(ZkDefaultHosts, 10000, 10000, null, new RetryOneTime(1)); client.start(); try { client.blockUntilConnectedOrTimedOut(); var path = "/test"; if (await client.getZooKeeper().existsAsync(path, false) != null) { client.getZooKeeper().deleteAsync(path).Wait(); } var pathTaskResult = await client.getZooKeeper().createAsync(path, new byte[] { 1, 2, 3 }, ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT); Assert.AreEqual(pathTaskResult, "/test"); } finally { client.Dispose(); } }
public void start() { log.Info("Starting"); if (!state.CompareAndSet(CuratorFrameworkState.LATENT, CuratorFrameworkState.STARTED)) { throw new InvalidOperationException("Cannot be started more than once"); } try { connectionStateManager.start(); // ordering dependency - must be called before client.start() IConnectionStateListener listener = new ConnectedStateListener(); this.getConnectionStateListenable().addListener(listener); client.start(); executorService = ThreadUtils.newSingleThreadScheduledExecutor(GetType().FullName); executorService.submit(new FutureTask <object>(RunnableUtils.FromFunc(() => backgroundOperationsLoop()))); } catch (Exception e) { ThreadUtils.checkInterrupted(e); handleBackgroundOperationException(null, e); } }
public void testBasic() { CuratorZookeeperClient client = new CuratorZookeeperClient(ZkDefaultHosts, DefaultSessionTimeout, DefaultConnectionTimeout, null, new RetryOneTime(1)); SessionFailRetryLoop retryLoop = client.newSessionFailRetryLoop(SessionFailRetryLoop.Mode.FAIL); retryLoop.start(); try { client.start(); try { while (retryLoop.shouldContinue()) { try { RetryLoop.callWithRetry ( client, CallableUtils.FromFunc <object>(() => { Task <Stat> existsTask = client.getZooKeeper().existsAsync("/foo/bar", false); existsTask.Wait(); Assert.Null(existsTask.Result); KillSession.kill(client.getZooKeeper(), ZkDefaultHosts, DefaultSessionTimeout); client.getZooKeeper(); client.blockUntilConnectedOrTimedOut(); existsTask = client.getZooKeeper().existsAsync("/foo/bar", false); existsTask.Wait(); Assert.Null(existsTask.Result); return(null); } )); } catch (Exception e) { retryLoop.takeException(e); } } Assert.Fail(); } catch (SessionFailRetryLoop.SessionFailedException dummy) { // correct } } finally { retryLoop.Dispose(); CloseableUtils.closeQuietly(client); } }
public void testRetryLoopWithFailure() { CuratorZookeeperClient client = new CuratorZookeeperClient(ZkDefaultHosts, DefaultSessionTimeout, DefaultConnectionTimeout, null, new RetryOneTime(1)); client.start(); try { int loopCount = 0; RetryLoop retryLoop = client.newRetryLoop(); while (retryLoop.shouldContinue()) { ++loopCount; switch (loopCount) { case 1: { // retryLoop.takeException(); break; } case 2: { retryLoop.markComplete(); break; } case 3: case 4: { // ignore break; } default: { Assert.Fail(); break; } } } Assert.True(loopCount >= 2); } finally { client.Dispose(); } }
public void testBasic() { IRetryPolicy retryPolicy = new RetryOneTime(1); EnsurePath ensurePath = new EnsurePath("/one/two/three"); CuratorZookeeperClient curator = new CuratorZookeeperClient(new FixedEnsembleProvider(ZkDefaultHosts), DefaultSessionTimeout, DefaultConnectionTimeout, null, retryPolicy); curator.start(); ensurePath.ensure(curator); }
public async Task testRetryLoop() { CuratorZookeeperClient client = new CuratorZookeeperClient(ZkDefaultHosts, DefaultSessionTimeout, DefaultConnectionTimeout, null, new RetryOneTime(1)); client.start(); try { int loopCount = 0; RetryLoop retryLoop = client.newRetryLoop(); while (retryLoop.shouldContinue()) { if (++loopCount > 2) { Assert.Fail(); break; } try { var path = "/test"; if (await client.getZooKeeper().existsAsync(path, false) != null) { client.getZooKeeper().deleteAsync(path).Wait(); } client.getZooKeeper().createAsync(path, new byte[] { 1, 2, 3 }, ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.EPHEMERAL) .Wait(); retryLoop.markComplete(); } catch (Exception e) { retryLoop.takeException(e); } } Assert.True(loopCount > 0); } finally { client.Dispose(); } }
public void testFactory() { IZookeeperFactory zookeeperFactory = new SingleInstanceZkFactory(Zookeeper); CuratorZookeeperClient client = new CuratorZookeeperClient(zookeeperFactory, new FixedEnsembleProvider(ZkDefaultHosts), DefaultSessionTimeout, DefaultConnectionTimeout, null, new RetryOneTime(1), false); client.start(); Assert.AreEqual(client.getZooKeeper(), Zookeeper); }
public void testBackgroundConnect() { int CONNECTION_TIMEOUT_MS = 4000; CuratorZookeeperClient client = new CuratorZookeeperClient(ZkDefaultHosts, 10000, CONNECTION_TIMEOUT_MS, null, new RetryOneTime(1)); try { Assert.False(client.isConnected()); client.start(); bool outerMustContinue = false; do { for (int i = 0; i < (CONNECTION_TIMEOUT_MS / 1000); ++i) { if (client.isConnected()) { outerMustContinue = true; break; } Thread.Sleep(CONNECTION_TIMEOUT_MS); } if (outerMustContinue) { continue; } Assert.Fail(); } while (false); } finally { client.Dispose(); } }
public void testSimple() { CuratorZookeeperClient client = new CuratorZookeeperClient(ZkDefaultHosts, 10000, 10000, null, new RetryOneTime(1)); client.start(); try { client.blockUntilConnectedOrTimedOut(); Task <string> pathTask = client.getZooKeeper().createAsync("/test", new byte[] { 1, 2, 3 }, ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT); pathTask.Wait(); Assert.AreEqual(pathTask.Result, "/test"); } finally { client.Dispose(); } }
public void testRetryStatic() { CuratorZookeeperClient client = new CuratorZookeeperClient(ZkDefaultHosts, DefaultSessionTimeout, DefaultConnectionTimeout, null, new RetryOneTime(1)); SessionFailRetryLoop retryLoop = client.newSessionFailRetryLoop(SessionFailRetryLoop.Mode.RETRY); retryLoop.start(); try { client.start(); AtomicBoolean secondWasDone = new AtomicBoolean(false); AtomicBoolean firstTime = new AtomicBoolean(true); SessionFailRetryLoop.callWithRetry ( client, SessionFailRetryLoop.Mode.RETRY, CallableUtils.FromFunc <object>(() => { RetryLoop.callWithRetry( client, CallableUtils.FromFunc <object>(() => { Task <Stat> existsTask; if (firstTime.compareAndSet(true, false)) { existsTask = client.getZooKeeper().existsAsync("/foo/bar", false); existsTask.Wait(); Assert.Null(existsTask.Result); KillSession.kill(client.getZooKeeper(), ZkDefaultHosts, DefaultSessionTimeout); client.getZooKeeper(); client.blockUntilConnectedOrTimedOut(); } existsTask = client.getZooKeeper().existsAsync("/foo/bar", false); existsTask.Wait(); Assert.Null(existsTask.Result); return(null); } )); RetryLoop.callWithRetry ( client, CallableUtils.FromFunc <object>(() => { Assert.False(firstTime.get()); Task <Stat> existsTask = client.getZooKeeper().existsAsync("/foo/bar", false); existsTask.Wait(); Assert.Null(existsTask.Result); secondWasDone.set(true); return(null); } )); return(null); } )); Assert.True(secondWasDone.get()); } finally { retryLoop.Dispose(); CloseableUtils.closeQuietly(client); } }
public void testExpiredSession() { // WARN: test requires that this must be address of one ZK host, // not a connection string to many nodes Barrier expiresBarrier = new Barrier(2); Watcher watcher = new ExpiredWatcher(expiresBarrier); CuratorZookeeperClient client = new CuratorZookeeperClient(ZkDefaultHosts, DefaultSessionTimeout, DefaultConnectionTimeout, watcher, new RetryOneTime(2)); client.start(); try { AtomicBoolean firstTime = new AtomicBoolean(true); RetryLoop.callWithRetry( client, CallableUtils.FromFunc <object>(() => { if (firstTime.compareAndSet(true, false)) { try { Task <string> createTask = client.getZooKeeper() .createAsync("/foo", new byte[0], ZooDefs.Ids.OPEN_ACL_UNSAFE, CreateMode.PERSISTENT); createTask.Wait(); } catch (AggregateException e) { if (e.InnerException is KeeperException.NodeExistsException) { // ignore } else { throw e; } } KillSession.kill(client.getZooKeeper(), ZkDefaultHosts, DefaultSessionTimeout * 3); Assert.True(expiresBarrier.SignalAndWait(DefaultSessionTimeout)); } ZooKeeper zooKeeper = client.getZooKeeper(); client.blockUntilConnectedOrTimedOut(); Task <Stat> task = zooKeeper.existsAsync("/foo", false); task.Wait(); Stat stat = task.Result; Assert.NotNull(stat); Assert.Greater(stat.getCzxid(), 0); return(null); }) ); } finally { client.Dispose(); } }