Package org.apache.zookeeper

Examples of org.apache.zookeeper.KeeperException

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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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        }
        tryNum++;
      } catch (Exception e1) {
        tryNum++;
        if (e1 instanceof KeeperException) {
          KeeperException e = (KeeperException) e1;
          switch (e.code()) {
          case CONNECTIONLOSS:
          case OPERATIONTIMEOUT:
            LOG.warn("Possibly transient ZooKeeper exception: ", e);
            break;
          default:
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        try {
            b.testRegisterBookie(conf);
        } catch (IOException e) {
            Throwable t = e.getCause();
            if (t instanceof KeeperException) {
                KeeperException ke = (KeeperException) t;
                Assert.assertTrue("ErrorCode:" + ke.code()
                        + ", Registration node exists",
                        ke.code() != KeeperException.Code.NODEEXISTS);
            }
            throw e;
        }

        // verify ephemeral owner of the bkReg znode
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            b.testRegisterBookie(conf);
            fail("Should throw NodeExistsException as the znode is not getting expired");
        } catch (IOException e) {
            Throwable t = e.getCause();
            if (t instanceof KeeperException) {
                KeeperException ke = (KeeperException) t;
                Assert.assertTrue("ErrorCode:" + ke.code()
                        + ", Registration node doesn't exists",
                        ke.code() == KeeperException.Code.NODEEXISTS);

                // verify ephemeral owner of the bkReg znode
                Stat bkRegNode2 = newzk.exists(bkRegPath, false);
                Assert.assertNotNull("Bookie registration has been failed",
                        bkRegNode2);
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      ZooKeeperProtos.Table.Builder builder = ZooKeeperProtos.Table.newBuilder();
      int magicLen = ProtobufUtil.lengthOfPBMagic();
      ZooKeeperProtos.Table t = builder.mergeFrom(data, magicLen, data.length - magicLen).build();
      return t.getState();
    } catch (InvalidProtocolBufferException e) {
      KeeperException ke = new KeeperException.DataInconsistencyException();
      ke.initCause(e);
      throw ke;
    } catch (DeserializationException e) {
      throw ZKUtil.convert(e);
    }
  }
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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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     */
    public static boolean      isRetryException(Throwable exception)
    {
        if ( exception instanceof KeeperException )
        {
            KeeperException     keeperException = (KeeperException)exception;
            return shouldRetry(keeperException.code().intValue());
        }
        return false;
    }
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          break;
        }
        tryNum++;
      } catch (Exception e1) {
        if (e1 instanceof KeeperException) {
          KeeperException e = (KeeperException) e1;
          switch (e.code()) {
          case CONNECTIONLOSS:
          case OPERATIONTIMEOUT:
            LOG.warn("Possibly transient ZooKeeper exception: ", e);
            break;
          default:
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    private void doWorkLoop() throws Exception
    {
        do
        {
            KeeperException exception = null;
            try
            {
                doWork();
            }
            catch ( KeeperException.ConnectionLossException e )
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  • com.alibaba.wasp.zookeeper.ZKTableReadOnly
  • com.alibaba.wasp.zookeeper.ZKUtil
  • com.nokia.dempsy.cluster.zookeeper.TestZookeeperClusterImpl
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  • com.spotify.helios.servicescommon.coordination.ZooKeeperModelReporter
  • org.apache.bookkeeper.bookie.BookieInitializationTest
  • org.apache.curator.framework.recipes.leader.LeaderSelector
  • org.apache.curator.RetryLoop
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