Examples with ZookeeperException org.zalando.nakadi.exceptions.runtime.ZookeeperException used on opensource projects

Example 1 with ZookeeperException

use of org.zalando.nakadi.exceptions.runtime.ZookeeperException in project nakadi by zalando.

the class AbstractZkSubscriptionClient method resetCursors.

@Override
public final void resetCursors(final List<SubscriptionCursorWithoutToken> cursors, final long timeout) throws OperationTimeoutException, ZookeeperException, OperationInterruptedException, RequestInProgressException {
    ZkSubscription<List<String>> sessionsListener = null;
    boolean resetWasAlreadyInitiated = false;
    try {
        // close subscription connections
        getCurator().create().withMode(CreateMode.EPHEMERAL).forPath(resetCursorPath);
        final AtomicBoolean sessionsChanged = new AtomicBoolean(true);
        sessionsListener = subscribeForSessionListChanges(() -> {
            sessionsChanged.set(true);
            synchronized (sessionsChanged) {
                sessionsChanged.notifyAll();
            }
        });
        final long finishAt = System.currentTimeMillis() + timeout;
        while (finishAt > System.currentTimeMillis()) {
            if (sessionsChanged.compareAndSet(true, false)) {
                if (sessionsListener.getData().isEmpty()) {
                    forceCommitOffsets(cursors);
                    return;
                }
            }
            synchronized (sessionsChanged) {
                sessionsChanged.wait(100);
            }
        }
    } catch (final InterruptedException e) {
        Thread.currentThread().interrupt();
        throw new OperationInterruptedException("Resetting cursors is interrupted", e);
    } catch (final KeeperException.NodeExistsException e) {
        resetWasAlreadyInitiated = true;
        throw new RequestInProgressException("Cursors reset is already in progress for provided subscription", e);
    } catch (final KeeperException.NoNodeException e) {
        throw new UnableProcessException("Impossible to reset cursors for subscription", e);
    } catch (final Exception e) {
        getLog().error(e.getMessage(), e);
        throw new ZookeeperException("Unexpected problem occurred when resetting cursors", e);
    } finally {
        if (sessionsListener != null) {
            sessionsListener.close();
        }
        try {
            if (!resetWasAlreadyInitiated) {
                getCurator().delete().guaranteed().forPath(resetCursorPath);
            }
        } catch (final Exception e) {
            getLog().error(e.getMessage(), e);
        }
    }
    throw new OperationTimeoutException("Timeout resetting cursors");
}

Example 2 with ZookeeperException

use of org.zalando.nakadi.exceptions.runtime.ZookeeperException in project nakadi by zalando.

the class CursorsService method resetCursors.

public void resetCursors(final String subscriptionId, final List<NakadiCursor> cursors) throws ServiceUnavailableException, NoSuchSubscriptionException, UnableProcessException, OperationTimeoutException, ZookeeperException, InternalNakadiException, NoSuchEventTypeException, InvalidCursorException {
    final Subscription subscription = subscriptionRepository.getSubscription(subscriptionId);
    validateCursorsBelongToSubscription(subscription, cursors);
    for (final NakadiCursor cursor : cursors) {
        cursor.checkStorageAvailability();
    }
    final Map<TopicRepository, List<NakadiCursor>> topicRepositories = cursors.stream().collect(Collectors.groupingBy(c -> timelineService.getTopicRepository(c.getTimeline())));
    for (final Map.Entry<TopicRepository, List<NakadiCursor>> entry : topicRepositories.entrySet()) {
        entry.getKey().validateReadCursors(entry.getValue());
    }
    final ZkSubscriptionClient zkClient = zkSubscriptionFactory.createClient(subscription, "subscription." + subscriptionId + ".reset_cursors");
    // In case if subscription was never initialized - initialize it
    zkClient.runLocked(() -> StartingState.initializeSubscriptionLocked(zkClient, subscription, timelineService, cursorConverter));
    // add 1 second to commit timeout in order to give time to finish reset if there is uncommitted events
    if (!cursors.isEmpty()) {
        final long timeout = TimeUnit.SECONDS.toMillis(nakadiSettings.getDefaultCommitTimeoutSeconds()) + TimeUnit.SECONDS.toMillis(1);
        zkClient.resetCursors(cursors.stream().map(cursorConverter::convertToNoToken).collect(Collectors.toList()), timeout);
    }
}