List of usage examples for org.apache.zookeeper ZooKeeper ZooKeeper
public ZooKeeper(String connectString, int sessionTimeout, Watcher watcher, boolean canBeReadOnly) throws IOException
From source file:com.brainlounge.zooterrain.zkclient.ZkStateObserver.java
License:Apache License
public void start() { try {//from w w w . jav a 2 s .c om zk = new ZooKeeper(zkConnection, 30 * 1000, null, false); } catch (IOException e) { e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates. throw new RuntimeException("zk connection failed"); } zk.register(this); try { zk.getChildren("/", this); } catch (KeeperException e) { e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates. } catch (InterruptedException e) { e.printStackTrace(); //To change body of catch statement use File | Settings | File Templates. } }
From source file:com.yahoo.pulsar.zookeeper.ZookeeperClientFactoryImpl.java
License:Apache License
@Override public CompletableFuture<ZooKeeper> create(String serverList, SessionType sessionType, int zkSessionTimeoutMillis) { // Create a normal ZK client boolean canBeReadOnly = sessionType == SessionType.AllowReadOnly; CompletableFuture<ZooKeeper> future = new CompletableFuture<>(); try {//from ww w. ja v a 2s . c om CompletableFuture<Void> internalFuture = new CompletableFuture<>(); ZooKeeper zk = new ZooKeeper(serverList, zkSessionTimeoutMillis, event -> { if (event.getType() == Event.EventType.None) { switch (event.getState()) { case ConnectedReadOnly: checkArgument(canBeReadOnly); // Fall through case SyncConnected: // ZK session is ready to use internalFuture.complete(null); break; case Expired: internalFuture .completeExceptionally(KeeperException.create(KeeperException.Code.SESSIONEXPIRED)); break; default: log.warn("Unexpected ZK event received: {}", event); break; } } }, canBeReadOnly); internalFuture.thenRun(() -> { log.info("ZooKeeper session established: {}", zk); future.complete(zk); }).exceptionally((exception) -> { log.error("Failed to establish ZooKeeper session: {}", exception.getMessage()); future.completeExceptionally(exception); return null; }); } catch (IOException e) { future.completeExceptionally(e); } return future; }
From source file:io.kodokojo.commons.utils.properties.provider.kv.ZookeeperJsonObjectValueProvider.java
License:Open Source License
public ZookeeperJsonObjectValueProvider(String zookeeperUrl, KeyToZookeeperPathConverter keyToZookeeperPathConverter) { if (isBlank(zookeeperUrl)) { throw new IllegalArgumentException("zookeeperUrl must be defined."); }/*from w w w. jav a 2s .c o m*/ this.zookeeperUrl = zookeeperUrl; try { client = new ZooKeeper(zookeeperUrl, 1000, (event -> { }), true); } catch (IOException e) { throw new IllegalStateException("Unable to create a Zookeeper client with url " + zookeeperUrl, e); } this.keyToZookeeperPathConverter = keyToZookeeperPathConverter; }
From source file:io.kodokojo.commons.utils.properties.provider.kv.ZookeeperPropertyValueProvider.java
License:Open Source License
public ZookeeperPropertyValueProvider(String zookeeperUrl, KeyToZookeeperPathConverter keyToZookeeperPathConverter) { if (isBlank(zookeeperUrl)) { throw new IllegalArgumentException("zookeeperUrl must be defined."); }/*from w w w. jav a 2 s .com*/ this.zookeeperUrl = zookeeperUrl; try { client = new ZooKeeper(zookeeperUrl, 1000, (event -> { }), true); } catch (IOException e) { throw new IllegalStateException("Unable to create a Zookeeper client with url " + zookeeperUrl, e); } this.keyToZookeeperPathConverter = keyToZookeeperPathConverter; }
From source file:io.teknek.daemon.BadPlanNameTest.java
License:Apache License
@Test public void hangAround() throws IOException, WorkerDaoException { p = new Plan() .withFeedDesc(new FeedDesc().withFeedClass(FixedFeed.class.getName()).withProperties( MapBuilder.makeMap(FixedFeed.NUMBER_OF_PARTITIONS, 2, FixedFeed.NUMBER_OF_ROWS, 10))) .withRootOperator(new OperatorDesc(new BeLoudOperator())); p.setName("yell"); p.setMaxWorkers(1);/*from w w w. j a v a 2 s .com*/ DummyWatcher dw = new DummyWatcher(); ZooKeeper zk = new ZooKeeper(zookeeperTestServer.getConnectString(), 200, dw, false); createOrUpdateBadPlan(p, zk); try { Thread.sleep(5000); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } }
From source file:org.apache.bookkeeper.zookeeper.BkZooKeeperClient.java
License:Apache License
protected ZooKeeper createZooKeeper() throws IOException { return new ZooKeeper(connectString, sessionTimeoutMs, watcherManager, allowReadOnlyMode); }
From source file:org.apache.curator.utils.DefaultZookeeperFactory.java
License:Apache License
@Override public ZooKeeper newZooKeeper(String connectString, int sessionTimeout, Watcher watcher, boolean canBeReadOnly) throws Exception { return new ZooKeeper(connectString, sessionTimeout, watcher, canBeReadOnly); }
From source file:org.apache.hoya.providers.accumulo.AccumuloProviderService.java
License:Apache License
private void verifyZookeeperLive(String zkQuorum, int timeout) throws IOException, KeeperException, InterruptedException { BlockingZKWatcher watcher = new BlockingZKWatcher(); ZooKeeper zookeeper = new ZooKeeper(zkQuorum, 10000, watcher, true); zookeeper.getChildren("/", watcher); watcher.waitForZKConnection(timeout); }
From source file:org.apache.hoya.tools.ZKIntegration.java
License:Apache License
public void init() throws IOException { assert zookeeper == null; log.debug("Binding ZK client to {}", zkConnection); zookeeper = new ZooKeeper(zkConnection, sessionTimeout, this, canBeReadOnly); }
From source file:org.apache.phoenix.util.PhoenixMRJobUtil.java
License:Apache License
public static String getActiveResourceManagerHost(Configuration config, String zkQuorum) throws IOException, InterruptedException, JSONException, KeeperException, InvalidProtocolBufferException, ZooKeeperConnectionException { ZooKeeperWatcher zkw = null;/*from w w w .j av a 2s .c o m*/ ZooKeeper zk = null; String activeRMHost = null; try { zkw = new ZooKeeperWatcher(config, "get-active-yarnmanager", null); zk = new ZooKeeper(zkQuorum, 30000, zkw, false); List<String> children = zk.getChildren(YARN_LEADER_ELECTION, zkw); for (String subEntry : children) { List<String> subChildern = zk.getChildren(YARN_LEADER_ELECTION + "/" + subEntry, zkw); for (String eachEntry : subChildern) { if (eachEntry.contains(ACTIVE_STANDBY_ELECTOR_LOCK)) { String path = YARN_LEADER_ELECTION + "/" + subEntry + "/" + ACTIVE_STANDBY_ELECTOR_LOCK; byte[] data = zk.getData(path, zkw, new Stat()); ActiveRMInfoProto proto = ActiveRMInfoProto.parseFrom(data); proto.getRmId(); LOG.info("Active RmId : " + proto.getRmId()); activeRMHost = config.get(YarnConfiguration.RM_HOSTNAME + "." + proto.getRmId()); LOG.info("activeResourceManagerHostname = " + activeRMHost); } } } } finally { if (zkw != null) zkw.close(); if (zk != null) zk.close(); } return activeRMHost; }