Package org.apache.zookeeper

Examples of org.apache.zookeeper.KeeperException

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        HConstants.DEFAULT_ZK_SESSION_TIMEOUT), EmptyWatcher.instance);

    final int maxTimeMs = 10000;
    final int maxNumAttempts = maxTimeMs / HConstants.SOCKET_RETRY_WAIT_MS;

    KeeperException keeperEx = null;
    try {
      try {
        for (int attempt = 0; attempt < maxNumAttempts; ++attempt) {
          try {
            if (zk.exists(parentZNode, false) != null) {
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   * Used when can't let a {@link DeserializationException} out w/o changing public API.
   * @param e Exception to convert
   * @return Converted exception
   */
  public static KeeperException convert(final DeserializationException e) {
    KeeperException ke = new KeeperException.DataInconsistencyException();
    ke.initCause(e);
    return ke;
  }
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                   throw e;
                }
                List<Txn> txns = new ArrayList<Txn>();
                //Each op in a multi-op must have the same zxid!
                long zxid = zks.getNextZxid();
                KeeperException ke = null;

                //Store off current pending change records in case we need to rollback
                HashMap<String, ChangeRecord> pendingChanges = getPendingChanges(multiRequest);

                int index = 0;
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        HConstants.DEFAULT_ZK_SESSION_TIMEOUT), EmptyWatcher.instance);

    final int maxTimeMs = 10000;
    final int maxNumAttempts = maxTimeMs / HConstants.SOCKET_RETRY_WAIT_MS;

    KeeperException keeperEx = null;
    try {
      try {
        for (int attempt = 0; attempt < maxNumAttempts; ++attempt) {
          try {
            if (zk.exists(parentZNode, false) != null) {
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                while (!res.finished) {
                    res.wait();
                }
            }
            if (KeeperException.Code.OK.intValue() != res.rc) {
                KeeperException ke = KeeperException.create(KeeperException.Code.get(res.rc));
                throw ke;
            }
            return res.results;
        } else {
            return zk.multi(ops);
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                while (!res.finished) {
                    res.wait();
                }
            }
            if (KeeperException.Code.OK.intValue() != res.rc) {
                KeeperException ke = KeeperException.create(KeeperException.Code.get(res.rc));
                throw ke;
            }
            return res.results;
        } else {
            return txn.commit();
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     * @return object. it needs to be cast to the callee's expected
     * return type.
     */
    protected Object retryOperation(ZooKeeperOperation operation)
        throws KeeperException, InterruptedException {
        KeeperException exception = null;
        for (int i = 0; i < retryCount; i++) {
            try {
                return operation.execute();
            } catch (KeeperException.SessionExpiredException e) {
                LOG.warn("Session expired for: " + zookeeper + " so reconnecting due to: " + e, e);
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    private void doWorkLoop() throws Exception
    {
        do
        {
            KeeperException exception = null;
            try
            {
                doWork();
            }
            catch ( KeeperException.ConnectionLossException e )
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                        callback.operationFinished(ctx, null);
                        return;
                    }

                    // otherwise some other error
                    KeeperException ke =
                        ZkUtils.logErrorAndCreateZKException("Could not read ledgers node for topic: "
                                                             + topic.toStringUtf8(), path, rc);
                    callback.operationFailed(ctx, new PubSubException.ServiceDownException(ke));
                }
            }, ctx);
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                        callback.operationFailed(ctx, PubSubException.create(StatusCode.TOPIC_PERSISTENCE_INFO_EXISTS,
                                                      "Persistence info of topic " + topic.toStringUtf8() + " existed."));
                        return;
                    }
                    if (rc != Code.OK.intValue()) {
                        KeeperException ke = ZkUtils.logErrorAndCreateZKException(
                                             "Could not create ledgers node for topic: " + topic.toStringUtf8(),
                                             path, rc);
                        callback.operationFailed(ctx, new PubSubException.ServiceDownException(ke));
                        return;
                    }
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  • org.apache.curator.RetryLoop
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