Examples with InvalidCheckpointException com.linkedin.databus.core.InvalidCheckpointException used on opensource projects

Example 1 with InvalidCheckpointException

use of com.linkedin.databus.core.InvalidCheckpointException in project databus by linkedin.

the class BootstrapStartScnHttpResponseProcessor method finishResponse.

@Override
public void finishResponse() throws Exception {
    super.finishResponse();
    if (_errorHandled) {
        return;
    }
    try {
        String exceptionName = RemoteExceptionHandler.getExceptionName(_decorated);
        Throwable remoteException = _remoteExceptionHandler.getException(_decorated);
        if (null != remoteException && remoteException instanceof BootstrapDatabaseTooOldException) {
            _remoteExceptionHandler.handleException(remoteException);
        } else if (null != exceptionName) {
            LOG.error("/targetScn response error: " + RemoteExceptionHandler.getExceptionMessage(_decorated));
            _stateReuse.switchToTargetScnResponseError();
        } else {
            InputStream bodyStream = Channels.newInputStream(_decorated);
            ObjectMapper mapper = new ObjectMapper();
            String scnString = mapper.readValue(bodyStream, String.class);
            LOG.info("targetScn:" + scnString);
            long targetScn = Long.parseLong(scnString);
            _stateReuse.switchToTargetScnSuccess();
            // make sure we are in the expected mode -- sanity checks
            Checkpoint ckpt = _checkpoint;
            if (ckpt.getConsumptionMode() != DbusClientMode.BOOTSTRAP_SNAPSHOT) {
                throw new InvalidCheckpointException("TargetScnResponseProcessor:" + " expecting in client mode: " + DbusClientMode.BOOTSTRAP_SNAPSHOT, ckpt);
            } else if (!ckpt.isSnapShotSourceCompleted()) {
                throw new InvalidCheckpointException("TargetScnResponseProcessor: current snapshot source not completed", ckpt);
            }
            LOG.info("Target SCN " + targetScn + " received for bootstrap catchup source " + ckpt.getCatchupSource() + " after completion of snapshot source " + ckpt.getSnapshotSource());
            ckpt.setBootstrapTargetScn(targetScn);
        }
    } catch (Exception ex) {
        LOG.error("/targetScn response error:" + ex.getMessage(), ex);
        _stateReuse.switchToTargetScnResponseError();
    }
    _callback.enqueueMessage(_stateReuse);
}

Example 2 with InvalidCheckpointException

use of com.linkedin.databus.core.InvalidCheckpointException in project databus by linkedin.

the class BootstrapPullThread method determineNextStateFromCheckpoint.

/**
   * Determines the next state based on the checkpoint. The idea is to determine where we are in the bootstrap flow and
   * move to the next state.
   *
   *  <pre>
   *    1. Request startSCN (State=REQUEST_START_SCN, SNAPSHOT, !cp.isBootstrapStartScnSet())
   *    2. For each snapshot source:
   *       2.1. Start snapshot (State=REQUEST_STREAM, SNAPSHOT, cp.isBootstrapStartScnSet() &&
   *                            0 == cp.getSnapshotOffset())
   *       2.2. While (! cp.isSnapShotSourceCompleted())
   *          2.2.1. Continue snapshot (State=REQUEST_STREAM, SNAPSHOT, cp.isBootstrapStartScnSet() &&
   *                                    0 < cp.getSnapshotOffset())
   *       2.3. Request targetSCN (State=REQUEST_TARGET_SCN, SNAPSHOT, cp.isBootstrapStartScnSet() &&
   *                               cp.isSnapShotSourceCompleted() && 0 == cp.getWindowOffset())
   *       2.4. For each catchup source <= the snapshot source:
   *          2.4.1. Start catchup (State=REQUEST_STREAM, CATCHUP, 0==cp.getWindowOffset() && handler.needsMoreCatchup())
   *          2.4.2. While (! cp.isCatchupSourceCompleted())
   *             2.4.2.1. Continue catchup (State=REQUEST_STREAM, CATCHUP, ! cp.isCatchupSourceCompleted())
   *  </pre>
   * @param curState        the bootstrap checkpoint
   */
private void determineNextStateFromCheckpoint(ConnectionState curState) {
    try {
        final Checkpoint cp = curState.getCheckpoint();
        final BootstrapCheckpointHandler cpHandler = curState.getBstCheckpointHandler();
        cpHandler.assertBootstrapCheckpoint(cp);
        switch(cp.getConsumptionMode()) {
            case BOOTSTRAP_SNAPSHOT:
                determineNextStateFromSnapshotCheckpoint(cp, cpHandler, curState);
                break;
            case BOOTSTRAP_CATCHUP:
                determineNextStateFromCatchupCheckpoint(cp, cpHandler, curState);
                break;
            default:
                _log.fatal("unexpected bootstrap checkpoint type: " + cp + "; shutting down");
                curState.switchToClosed();
        }
    } catch (InvalidCheckpointException e) {
        _log.fatal("invalid bootstrap checkpoint:", e);
        curState.switchToClosed();
    }
}