Examples of ZooReaderWriter

Examples of org.apache.accumulo.server.zookeeper.ZooReaderWriter

  private void killMacGc() throws ProcessNotFoundException, InterruptedException, KeeperException {
    // kill gc started by MAC
    getCluster().killProcess(ServerType.GARBAGE_COLLECTOR, getCluster().getProcesses().get(ServerType.GARBAGE_COLLECTOR).iterator().next());
    // delete lock in zookeeper if there, this will allow next GC to start quickly
    String path = ZooUtil.getRoot(new ZooKeeperInstance(getCluster().getClientConfig())) + Constants.ZGC_LOCK;
    ZooReaderWriter zk = new ZooReaderWriter(cluster.getZooKeepers(), 30000, OUR_SECRET);
    try {
      ZooLock.deleteLock(zk, path);
    } catch (IllegalStateException e) {


    }

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Examples of org.apache.accumulo.server.zookeeper.ZooReaderWriter

  public void testProperPortAdvertisement() throws Exception {


    Connector conn = getConnector();
    Instance instance = conn.getInstance();


    ZooReaderWriter zk = new ZooReaderWriter(cluster.getZooKeepers(), 30000, OUR_SECRET);
    String path = ZooUtil.getRoot(instance) + Constants.ZGC_LOCK;
    for (int i = 0; i < 5; i++) {
      List<String> locks;
      try {
        locks = zk.getChildren(path, null);
      } catch (NoNodeException e) {
        Thread.sleep(5000);
        continue;
      }


      if (locks != null && locks.size() > 0) {
        Collections.sort(locks);


        String lockPath = path + "/" + locks.get(0);


        String gcLoc = new String(zk.getData(lockPath, null));


        Assert.assertTrue("Found unexpected data in zookeeper for GC location: " + gcLoc, gcLoc.startsWith(Service.GC_CLIENT.name()));
        int loc = gcLoc.indexOf(ServerServices.SEPARATOR_CHAR);
        Assert.assertNotEquals("Could not find split point of GC location for: " + gcLoc, -1, loc);
        String addr = gcLoc.substring(loc + 1);

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Examples of org.apache.accumulo.server.zookeeper.ZooReaderWriter

  private static GCStatus fetchGcStatus() {
    GCStatus result = null;
    HostAndPort address = null;
    try {
      // Read the gc location from its lock
      ZooReaderWriter zk = ZooReaderWriter.getInstance();
      String path = ZooUtil.getRoot(instance) + Constants.ZGC_LOCK;
      List<String> locks = zk.getChildren(path, null);
      if (locks != null && locks.size() > 0) {
        Collections.sort(locks);
        address = new ServerServices(new String(zk.getData(path + "/" + locks.get(0), null), Constants.UTF8)).getAddress(Service.GC_CLIENT);
        GCMonitorService.Client client = ThriftUtil.getClient(new GCMonitorService.Client.Factory(), address, config.getConfiguration());
        try {
          result = client.getStatus(Tracer.traceInfo(), SystemCredentials.get().toThrift(instance));
        } finally {
          ThriftUtil.returnClient(client);

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Examples of org.apache.accumulo.server.zookeeper.ZooReaderWriter

    final String zRoot = ZooUtil.getRoot(instance);
    final String monitorPath = zRoot + Constants.ZMONITOR;
    final String monitorLockPath = zRoot + Constants.ZMONITOR_LOCK;


    // Ensure that everything is kosher with ZK as this has changed.
    ZooReaderWriter zoo = ZooReaderWriter.getInstance();
    if (zoo.exists(monitorPath)) {
      byte[] data = zoo.getData(monitorPath, null);
      // If the node isn't empty, it's from a previous install (has hostname:port for HTTP server)
      if (0 != data.length) {
        // Recursively delete from that parent node
        zoo.recursiveDelete(monitorPath, NodeMissingPolicy.SKIP);


        // And then make the nodes that we expect for the incoming ephemeral nodes
        zoo.putPersistentData(monitorPath, new byte[0], NodeExistsPolicy.FAIL);
        zoo.putPersistentData(monitorLockPath, new byte[0], NodeExistsPolicy.FAIL);
      } else if (!zoo.exists(monitorLockPath)) {
        // monitor node in ZK exists and is empty as we expect
        // but the monitor/lock node does not
        zoo.putPersistentData(monitorLockPath, new byte[0], NodeExistsPolicy.FAIL);
      }
    } else {
      // 1.5.0 and earlier
      zoo.putPersistentData(zRoot + Constants.ZMONITOR, new byte[0], NodeExistsPolicy.FAIL);
      if (!zoo.exists(monitorLockPath)) {
        // Somehow the monitor node exists but not monitor/lock
        zoo.putPersistentData(monitorLockPath, new byte[0], NodeExistsPolicy.FAIL);
      }
    }


    // Get a ZooLock for the monitor
    while (true) {

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Examples of org.apache.accumulo.server.zookeeper.ZooReaderWriter

    ServerAddress serverPort = TServerUtils.startTServer(HostAndPort.fromParts("0.0.0.0", port), processor, "ZombieTServer", "walking dead", 2, 1000,
        10 * 1024 * 1024, null, -1);
    
    String addressString = serverPort.address.toString();
    String zPath = ZooUtil.getRoot(instance) + Constants.ZTSERVERS + "/" + addressString;
    ZooReaderWriter zoo = ZooReaderWriter.getInstance();
    zoo.putPersistentData(zPath, new byte[] {}, NodeExistsPolicy.SKIP);
    
    ZooLock zlock = new ZooLock(zPath);
    
    LockWatcher lw = new LockWatcher() {
      @Override

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Examples of org.apache.accumulo.server.zookeeper.ZooReaderWriter

      String logForwardingAddr = hostAddress + ":" + server.getLocalPort();


      log.debug("Setting monitor log4j log-forwarding address to: " + logForwardingAddr);


      final String path = ZooUtil.getRoot(instanceId) + Constants.ZMONITOR_LOG4J_ADDR;
      final ZooReaderWriter zoo = ZooReaderWriter.getInstance();


      // Delete before we try to re-create in case the previous session hasn't yet expired
      try {
        zoo.delete(path, -1);
      } catch (KeeperException e) {
        // We don't care if the node is already gone
        if (!KeeperException.Code.NONODE.equals(e.code())) {
          throw e;
        }
      }


      zoo.putEphemeralData(path, logForwardingAddr.getBytes(Constants.UTF8));


      new Daemon(server).start();
    } catch (Throwable t) {
      log.info("Unable to start/advertise Log4j listener for log-forwarding to monitor", t);
    }

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Examples of org.apache.accumulo.server.zookeeper.ZooReaderWriter

      if (path[path.length - 1].equals(Constants.ZLOGGERS) && this.shutdownState == ShutdownState.REGISTERED) {
        LOG.fatal("Stopping server, zookeeper entry lost " + event.getPath());
        service.stop();
      }
    }
    ZooReaderWriter zoo = ZooReaderWriter.getInstance();
    try {
      if (!zoo.exists(this.ephemeralNode, this)) {
        LOG.fatal("Stopping server, zookeeper entry lost " + event.getPath());
        service.stop();
      }
    } catch (Exception ex) {
      LOG.fatal("Stopping server, cannot reset watch" + ex);

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Examples of org.apache.accumulo.server.zookeeper.ZooReaderWriter

    ServerPort serverPort = TServerUtils.startTServer(port, processor, "ZombieTServer", "walking dead", 2, 1000);
    
    InetSocketAddress addr = new InetSocketAddress(InetAddress.getLocalHost(), serverPort.port);
    String addressString = AddressUtil.toString(addr);
    String zPath = ZooUtil.getRoot(HdfsZooInstance.getInstance()) + Constants.ZTSERVERS + "/" + addressString;
    ZooReaderWriter zoo = ZooReaderWriter.getInstance();
    zoo.putPersistentData(zPath, new byte[] {}, NodeExistsPolicy.SKIP);
    
    ZooLock zlock = new ZooLock(zPath);
    
    LockWatcher lw = new LockWatcher() {
      @Override

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