Package org.apache.zookeeper.KeeperException

Examples of org.apache.zookeeper.KeeperException.Code

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        createConnection();
      }
      Stat stat = new Stat();
      return getDataWithRetries(zkLockFilePath, false, stat);
    } catch(KeeperException e) {
      Code code = e.code();
      if (isNodeDoesNotExist(code)) {
        // handle the commonly expected cases that make sense for us
        throw new ActiveNotFoundException();
      } else {
        throw e;
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    if (isStaleClient(ctx)) return;
    LOG.debug("CreateNode result: " + rc + " for path: " + path
        + " connectionState: " + zkConnectionState +
        "  for " + this);

    Code code = Code.get(rc);
    if (isSuccess(code)) {
      // we successfully created the znode. we are the leader. start monitoring
      if (becomeActive()) {
        monitorActiveStatus();
      } else {
        reJoinElectionAfterFailureToBecomeActive();
      }
      return;
    }

    if (isNodeExists(code)) {
      if (createRetryCount == 0) {
        // znode exists and we did not retry the operation. so a different
        // instance has created it. become standby and monitor lock.
        becomeStandby();
      }
      // if we had retried then the znode could have been created by our first
      // attempt to the server (that we lost) and this node exists response is
      // for the second attempt. verify this case via ephemeral node owner. this
      // will happen on the callback for monitoring the lock.
      monitorActiveStatus();
      return;
    }

    String errorMessage = "Received create error from Zookeeper. code:"
        + code.toString() + " for path " + path;
    LOG.debug(errorMessage);

    if (shouldRetry(code)) {
      if (createRetryCount < NUM_RETRIES) {
        LOG.debug("Retrying createNode createRetryCount: " + createRetryCount);
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    LOG.debug("StatNode result: " + rc + " for path: " + path
        + " connectionState: " + zkConnectionState + " for " + this);
       

    Code code = Code.get(rc);
    if (isSuccess(code)) {
      // the following owner check completes verification in case the lock znode
      // creation was retried
      if (stat.getEphemeralOwner() == zkClient.getSessionId()) {
        // we own the lock znode. so we are the leader
        if (!becomeActive()) {
          reJoinElectionAfterFailureToBecomeActive();
        }
      } else {
        // we dont own the lock znode. so we are a standby.
        becomeStandby();
      }
      // the watch set by us will notify about changes
      return;
    }

    if (isNodeDoesNotExist(code)) {
      // the lock znode disappeared before we started monitoring it
      enterNeutralMode();
      joinElectionInternal();
      return;
    }

    String errorMessage = "Received stat error from Zookeeper. code:"
        + code.toString();
    LOG.debug(errorMessage);

    if (shouldRetry(code)) {
      if (statRetryCount < NUM_RETRIES) {
        ++statRetryCount;
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        CreateCallbackHandler cb = cbList[i];
        cb.waitForSuccess();
        String path = paths.get(i);

        Code code = Code.get(cb.getRc());
        switch (code) {
        case NONODE: {
          // we will try create parent nodes
          String parentPath = HelixUtil.getZkParentPath(path);
          parentPaths.set(i, parentPath);
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            continue;
          }

          SetDataCallbackHandler cb = setCbList[i];
          cb.waitForSuccess();
          Code rc = Code.get(cb.getRc());
          switch (rc) {
          case OK: {
            setStats[i] = cb.getStat();
            retCodes[i] = RetCode.OK;
            needSet[i] = false;
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        createConnection();
      }
      Stat stat = new Stat();
      return getDataWithRetries(zkLockFilePath, false, stat);
    } catch(KeeperException e) {
      Code code = e.code();
      if (isNodeDoesNotExist(code)) {
        // handle the commonly expected cases that make sense for us
        throw new ActiveNotFoundException();
      } else {
        throw e;
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    if (isStaleClient(ctx)) return;
    LOG.debug("CreateNode result: " + rc + " for path: " + path
        + " connectionState: " + zkConnectionState +
        "  for " + this);

    Code code = Code.get(rc);
    if (isSuccess(code)) {
      // we successfully created the znode. we are the leader. start monitoring
      if (becomeActive()) {
        monitorActiveStatus();
      } else {
        reJoinElectionAfterFailureToBecomeActive();
      }
      return;
    }

    if (isNodeExists(code)) {
      if (createRetryCount == 0) {
        // znode exists and we did not retry the operation. so a different
        // instance has created it. become standby and monitor lock.
        becomeStandby();
      }
      // if we had retried then the znode could have been created by our first
      // attempt to the server (that we lost) and this node exists response is
      // for the second attempt. verify this case via ephemeral node owner. this
      // will happen on the callback for monitoring the lock.
      monitorActiveStatus();
      return;
    }

    String errorMessage = "Received create error from Zookeeper. code:"
        + code.toString() + " for path " + path;
    LOG.debug(errorMessage);

    if (shouldRetry(code)) {
      if (createRetryCount < NUM_RETRIES) {
        LOG.debug("Retrying createNode createRetryCount: " + createRetryCount);
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    LOG.debug("StatNode result: " + rc + " for path: " + path
        + " connectionState: " + zkConnectionState + " for " + this);
       

    Code code = Code.get(rc);
    if (isSuccess(code)) {
      // the following owner check completes verification in case the lock znode
      // creation was retried
      if (stat.getEphemeralOwner() == zkClient.getSessionId()) {
        // we own the lock znode. so we are the leader
        if (!becomeActive()) {
          reJoinElectionAfterFailureToBecomeActive();
        }
      } else {
        // we dont own the lock znode. so we are a standby.
        becomeStandby();
      }
      // the watch set by us will notify about changes
      return;
    }

    if (isNodeDoesNotExist(code)) {
      // the lock znode disappeared before we started monitoring it
      enterNeutralMode();
      joinElectionInternal();
      return;
    }

    String errorMessage = "Received stat error from Zookeeper. code:"
        + code.toString();
    LOG.debug(errorMessage);

    if (shouldRetry(code)) {
      if (statRetryCount < NUM_RETRIES) {
        ++statRetryCount;
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        createConnection();
      }
      Stat stat = new Stat();
      return getDataWithRetries(zkLockFilePath, false, stat);
    } catch(KeeperException e) {
      Code code = e.code();
      if (isNodeDoesNotExist(code)) {
        // handle the commonly expected cases that make sense for us
        throw new ActiveNotFoundException();
      } else {
        throw e;
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    if (isStaleClient(ctx)) return;
    LOG.debug("CreateNode result: " + rc + " for path: " + path
        + " connectionState: " + zkConnectionState +
        "  for " + this);

    Code code = Code.get(rc);
    if (isSuccess(code)) {
      // we successfully created the znode. we are the leader. start monitoring
      if (becomeActive()) {
        monitorActiveStatus();
      } else {
        reJoinElectionAfterFailureToBecomeActive();
      }
      return;
    }

    if (isNodeExists(code)) {
      if (createRetryCount == 0) {
        // znode exists and we did not retry the operation. so a different
        // instance has created it. become standby and monitor lock.
        becomeStandby();
      }
      // if we had retried then the znode could have been created by our first
      // attempt to the server (that we lost) and this node exists response is
      // for the second attempt. verify this case via ephemeral node owner. this
      // will happen on the callback for monitoring the lock.
      monitorActiveStatus();
      return;
    }

    String errorMessage = "Received create error from Zookeeper. code:"
        + code.toString() + " for path " + path;
    LOG.debug(errorMessage);

    if (shouldRetry(code)) {
      if (createRetryCount < NUM_RETRIES) {
        LOG.debug("Retrying createNode createRetryCount: " + createRetryCount);
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