Examples of IZooReaderWriter

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

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  private static final Logger log = Logger.getLogger(DeadServerList.class);
  private final String path;
 
  public DeadServerList(String path) {
    this.path = path;
    IZooReaderWriter zoo = ZooReaderWriter.getInstance();
    try {
      zoo.mkdirs(path);
    } catch (Exception ex) {
      log.error("Unable to make parent directories of " + path, ex);
    }
  }
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Examples of org.apache.accumulo.fate.zookeeper.IZooReaderWriter

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    }
  }
 
  public List<DeadServer> getList() {
    List<DeadServer> result = new ArrayList<DeadServer>();
    IZooReaderWriter zoo = ZooReaderWriter.getInstance();
    try {
      List<String> children = zoo.getChildren(path);
      if (children != null) {
        for (String child : children) {
          Stat stat = new Stat();
          byte[] data = zoo.getData(path + "/" + child, stat);
          DeadServer server = new DeadServer(child, stat.getMtime(), new String(data, Constants.UTF8));
          result.add(server);
        }
      }
    } catch (Exception ex) {
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Examples of org.apache.accumulo.fate.zookeeper.IZooReaderWriter

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  }
 
  @Override
  public void run() throws Exception {
    String zPath = ZooUtil.getRoot(HdfsZooInstance.getInstance()) + "/testLock";
    IZooReaderWriter zoo = ZooReaderWriter.getInstance();
    zoo.putPersistentData(zPath, new byte[0], NodeExistsPolicy.OVERWRITE);
    ZooLock zl = new ZooLock(zPath);
    boolean gotLock = zl.tryLock(new LockWatcher() {
     
      @Override
      public void lostLock(LockLossReason reason) {
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Examples of org.apache.accumulo.fate.zookeeper.IZooReaderWriter

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    }
    return result;
  }
 
  public void delete(String server) {
    IZooReaderWriter zoo = ZooReaderWriter.getInstance();
    try {
      zoo.recursiveDelete(path + "/" + server, NodeMissingPolicy.SKIP);
    } catch (Exception ex) {
      log.error(ex, ex);
    }
  }
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Examples of org.apache.accumulo.fate.zookeeper.IZooReaderWriter

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      log.error(ex, ex);
    }
  }
 
  public void post(String server, String cause) {
    IZooReaderWriter zoo = ZooReaderWriter.getInstance();
    try {
      zoo.putPersistentData(path + "/" + server, cause.getBytes(Constants.UTF8), NodeExistsPolicy.SKIP);
    } catch (Exception ex) {
      log.error(ex, ex);
    }
  }
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Examples of org.apache.accumulo.fate.zookeeper.IZooReaderWriter

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  @Override
  public void initializeSecurity(TCredentials credentials, String principal, byte[] token) throws AccumuloSecurityException {
    try {
      // remove old settings from zookeeper first, if any
      IZooReaderWriter zoo = ZooReaderWriter.getRetryingInstance();
      synchronized (zooCache) {
        zooCache.clear();
        if (zoo.exists(ZKUserPath)) {
          zoo.recursiveDelete(ZKUserPath, NodeMissingPolicy.SKIP);
          log.info("Removed " + ZKUserPath + "/" + " from zookeeper");
        }
       
        // prep parent node of users with root username
        zoo.putPersistentData(ZKUserPath, principal.getBytes(Constants.UTF8), NodeExistsPolicy.FAIL);
       
        constructUser(principal, ZKSecurityTool.createPass(token));
      }
    } catch (KeeperException e) {
      log.error(e, e);
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Examples of org.apache.accumulo.fate.zookeeper.IZooReaderWriter

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   * Sets up the user in ZK for the provided user. No checking for existence is done here, it should be done before calling.
   */
  private void constructUser(String user, byte[] pass) throws KeeperException, InterruptedException {
    synchronized (zooCache) {
      zooCache.clear();
      IZooReaderWriter zoo = ZooReaderWriter.getRetryingInstance();
      zoo.putPrivatePersistentData(ZKUserPath + "/" + user, pass, NodeExistsPolicy.FAIL);
    }
  }
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Examples of org.apache.accumulo.fate.zookeeper.IZooReaderWriter

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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.fate.zookeeper.IZooReaderWriter

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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.fate.zookeeper.IZooReaderWriter

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  public Repo<Master> call(long tid, Master environment) throws Exception {
    String zCompactID = Constants.ZROOT + "/" + HdfsZooInstance.getInstance().getInstanceID() + Constants.ZTABLES + "/" + tableId + Constants.ZTABLE_COMPACT_ID;
    String zCancelID = Constants.ZROOT + "/" + HdfsZooInstance.getInstance().getInstanceID() + Constants.ZTABLES + "/" + tableId
        + Constants.ZTABLE_COMPACT_CANCEL_ID;
   
    IZooReaderWriter zoo = ZooReaderWriter.getRetryingInstance();
   
    byte[] currentValue = zoo.getData(zCompactID, null);
   
    String cvs = new String(currentValue, Constants.UTF8);
    String[] tokens = cvs.split(",");
    final long flushID = Long.parseLong(tokens[0]);
   
    zoo.mutate(zCancelID, null, null, new Mutator() {
      @Override
      public byte[] mutate(byte[] currentValue) throws Exception {
        long cid = Long.parseLong(new String(currentValue, Constants.UTF8));
       
        if (cid < flushID)
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