Examples of ZooReaderWriter

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

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    }
    return false;
  }
 
  private static String rewriteZooKeeperInstance(final Instance inst, String oldPass, String newPass) throws Exception {
    final ZooReaderWriter orig = new ZooReaderWriter(inst.getZooKeepers(), inst.getZooKeepersSessionTimeOut(), oldPass);
    final IZooReaderWriter new_ = new ZooReaderWriter(inst.getZooKeepers(), inst.getZooKeepersSessionTimeOut(), newPass);
    final String newInstanceId = UUID.randomUUID().toString();
    String root = ZooUtil.getRoot(inst);
    recurse(orig, root, new Visitor() {
      public void visit(ZooReader zoo, String path) throws Exception {
        String newPath = path.replace(inst.getInstanceID(), newInstanceId);
        byte[] data = zoo.getData(path, null);
        List<ACL> acls = orig.getZooKeeper().getACL(path, new Stat());
        if (acls.containsAll(Ids.READ_ACL_UNSAFE)) {
          new_.putPersistentData(newPath, data, NodeExistsPolicy.FAIL);
        } else {
          // upgrade
          if (acls.containsAll(Ids.OPEN_ACL_UNSAFE)) {
            // make user nodes private, they contain the user's password
            String parts[] = path.split("/");
            if (parts[parts.length - 2].equals("users")) {
              new_.putPrivatePersistentData(newPath, data, NodeExistsPolicy.FAIL);
            } else {
              // everything else can have the readable acl
              new_.putPersistentData(newPath, data, NodeExistsPolicy.FAIL);
            }
          } else {
            new_.putPrivatePersistentData(newPath, data, NodeExistsPolicy.FAIL);
          }
        }
      }
    });
    String path = "/accumulo/instances/" + inst.getInstanceName();
    orig.recursiveDelete(path, NodeMissingPolicy.SKIP);
    new_.putPersistentData(path, newInstanceId.getBytes(Constants.UTF8), NodeExistsPolicy.OVERWRITE);
    return newInstanceId;
  }
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Examples of org.apache.accumulo.server.zookeeper.ZooReaderWriter

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    fs.mkdirs(ServerConstants.getInstanceIdLocation());
    fs.create(new Path(ServerConstants.getInstanceIdLocation(), newInstanceId)).close();
  }
 
  private static void deleteInstance(Instance origInstance, String oldPass) throws Exception {
    IZooReaderWriter orig = new ZooReaderWriter(origInstance.getZooKeepers(), origInstance.getZooKeepersSessionTimeOut(), oldPass);
    orig.recursiveDelete("/accumulo/" + origInstance.getInstanceID(), NodeMissingPolicy.SKIP);
  }
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Examples of org.apache.accumulo.server.zookeeper.ZooReaderWriter

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  private static GCStatus fetchGcStatus() {
    GCStatus result = null;
    try {
      // Read the gc location from its lock
      ZooReaderWriter zk = ZooReaderWriter.getInstance();
      String path = ZooUtil.getRoot(HdfsZooInstance.getInstance()) + Constants.ZGC_LOCK;
      List<String> locks = zk.getChildren(path, null);
      if (locks != null && locks.size() > 0) {
        Collections.sort(locks);
        InetSocketAddress address = new ServerServices(new String(zk.getData(path + "/" + locks.get(0), null))).getAddress(Service.GC_CLIENT);
        GCMonitorService.Iface client = ThriftUtil.getClient(new GCMonitorService.Client.Factory(), address, ServerConfiguration.getSystemConfiguration());
        try {
          result = client.getStatus(null, SecurityConstants.getSystemCredentials());
        } finally {
          ThriftUtil.returnClient(client);
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Examples of org.apache.accumulo.server.zookeeper.ZooReaderWriter

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      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 (KeeperException.ConnectionLossException ex) {
      LOG.info("Disconnected from zookeeper");
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Examples of org.apache.accumulo.server.zookeeper.ZooReaderWriter

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    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

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

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    }
    return false;
  }
 
  private static String rewriteZooKeeperInstance(final Instance inst, String oldPass, String newPass) throws Exception {
    final ZooReaderWriter orig = new ZooReaderWriter(inst.getZooKeepers(), inst.getZooKeepersSessionTimeOut(), oldPass);
    final IZooReaderWriter new_ = new ZooReaderWriter(inst.getZooKeepers(), inst.getZooKeepersSessionTimeOut(), newPass);
    final String newInstanceId = UUID.randomUUID().toString();
    String root = ZooUtil.getRoot(inst);
    recurse(orig, root, new Visitor() {
      public void visit(ZooReader zoo, String path) throws Exception {
        String newPath = path.replace(inst.getInstanceID(), newInstanceId);
        byte[] data = zoo.getData(path, null);
        List<ACL> acls = orig.getZooKeeper().getACL(path, new Stat());
        if (acls.containsAll(Ids.READ_ACL_UNSAFE)) {
          new_.putPersistentData(newPath, data, NodeExistsPolicy.FAIL);
        } else {
          // upgrade
          if (acls.containsAll(Ids.OPEN_ACL_UNSAFE)) {
            // make user nodes private, they contain the user's password
            String parts[] = path.split("/");
            if (parts[parts.length - 2].equals("users")) {
              new_.putPrivatePersistentData(newPath, data, NodeExistsPolicy.FAIL);
            } else {
              // everything else can have the readable acl
              new_.putPersistentData(newPath, data, NodeExistsPolicy.FAIL);
            }
          } else {
            new_.putPrivatePersistentData(newPath, data, NodeExistsPolicy.FAIL);
          }
        }
      }
    });
    String path = "/accumulo/instances/" + inst.getInstanceName();
    orig.recursiveDelete(path, NodeMissingPolicy.SKIP);
    new_.putPersistentData(path, newInstanceId.getBytes(), NodeExistsPolicy.OVERWRITE);
    return newInstanceId;
  }
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Examples of org.apache.accumulo.server.zookeeper.ZooReaderWriter

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    fs.mkdirs(ServerConstants.getInstanceIdLocation());
    fs.create(new Path(ServerConstants.getInstanceIdLocation(), newInstanceId)).close();
  }
 
  private static void deleteInstance(Instance origInstance, String oldPass) throws Exception {
    IZooReaderWriter orig = new ZooReaderWriter(origInstance.getZooKeepers(), origInstance.getZooKeepersSessionTimeOut(), oldPass);
    orig.recursiveDelete("/accumulo/" + origInstance.getInstanceID(), NodeMissingPolicy.SKIP);
  }
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Examples of org.apache.accumulo.server.zookeeper.ZooReaderWriter

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  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

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    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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