Examples of ZooReaderWriter

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

   * @param secret
   *          instance secret
   * @return reader/writer
   */
  public IZooReaderWriter getZooReaderWriter(String string, int timeInMillis, String secret) {
    return new ZooReaderWriter(string, timeInMillis, SCHEME, (USER + ":" + secret).getBytes(Constants.UTF8));
  }

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

    if (secret == null) {
      AccumuloConfiguration conf = SiteConfiguration.getInstance(DefaultConfiguration.getInstance());
      secret = conf.get(Property.INSTANCE_SECRET);
    }
    
    return new ZooReaderWriter(instance.getZooKeepers(), instance.getZooKeepersSessionTimeOut(), SCHEME, (USER + ":" + secret).getBytes());
  }

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

      @SuppressWarnings("deprecation")
      AccumuloConfiguration conf = AccumuloConfiguration.getSiteConfiguration();
      secret = conf.get(Property.INSTANCE_SECRET);
    }
    
    return new ZooReaderWriter(instance.getZooKeepers(), instance.getZooKeepersSessionTimeOut(), SCHEME, (USER + ":" + secret).getBytes());
  }

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

    // wait for master
    UtilWaitThread.sleep(1000);
    // create a backup
    Process backup = exec(Master.class);
    try {
      ZooReaderWriter writer = new ZooReaderWriter(cluster.getZooKeepers(), 30*1000, "digest", "accumulo:DONTTELL".getBytes());
      String root = "/accumulo/" + getConnector().getInstance().getInstanceID();
      List<String> children = Collections.emptyList();
      // wait for 2 lock entries
      do {
        UtilWaitThread.sleep(100);
        children = writer.getChildren(root + "/masters/lock");
      } while (children.size() != 2);
      Collections.sort(children);
      // wait for the backup master to learn to be the backup
      UtilWaitThread.sleep(1000);
      // generate a false zookeeper event
      String lockPath = root + "/masters/lock/" + children.get(0);
      byte data[] = writer.getData(lockPath, null);
      writer.getZooKeeper().setData(lockPath, data, -1);
      // let it propagate
      UtilWaitThread.sleep(500);
      // kill the master by removing its lock
      writer.recursiveDelete(lockPath, NodeMissingPolicy.FAIL);
      // ensure the backup becomes the master
      getConnector().tableOperations().create(getUniqueNames(1)[0]);
    } finally {
      backup.destroy();
    }

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

    ServerPort serverPort = TServerUtils.startTServer(port, processor, "ZombieTServer", "walking dead", 2, 1000, 10*1024*1024);
    
    InetSocketAddress addr = new InetSocketAddress(InetAddress.getLocalHost(), serverPort.port);
    String addressString = AddressUtil.toString(addr);
    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

import org.apache.accumulo.server.client.HdfsZooInstance;
import org.apache.accumulo.server.zookeeper.ZooReaderWriter;


public class Info {
  public static void main(String[] args) throws Exception {
    ZooReaderWriter zrw = ZooReaderWriter.getInstance();
    Instance instance = HdfsZooInstance.getInstance();
    System.out.println("monitor: " + new String(zrw.getData(ZooUtil.getRoot(instance) + Constants.ZMONITOR_HTTP_ADDR, null), Constants.UTF8));
    System.out.println("masters: " + instance.getMasterLocations());
    System.out.println("zookeepers: " + instance.getZooKeepers());
  }

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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

  private static GCStatus fetchGcStatus() {
    GCStatus result = null;
    InetSocketAddress 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(), SecurityConstants.getSystemCredentials());
        } 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

      throw new RuntimeException(ex);
    }
  }
  
  private static boolean verifyAccumuloIsDown(Instance inst, String oldPassword) {
    ZooReader zooReader = new ZooReaderWriter(inst.getZooKeepers(), inst.getZooKeepersSessionTimeOut(), oldPassword);
    String root = ZooUtil.getRoot(inst);
    final List<String> ephemerals = new ArrayList<String>();
    recurse(zooReader, root, new Visitor() {
      public void visit(ZooReader zoo, String path) throws Exception {
        Stat stat = zoo.getStatus(path);

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