Examples with RetryPolicy org.apache.curator.RetryPolicy used on opensource projects

Example 26 with RetryPolicy

use of org.apache.curator.RetryPolicy in project metron by apache.

the class FluxTopologyComponent method start.

@Override
public void start() throws UnableToStartException {
    try {
        stormCluster = new LocalCluster();
        RetryPolicy retryPolicy = new ExponentialBackoffRetry(1000, 3);
        try (CuratorFramework client = CuratorFrameworkFactory.newClient(getZookeeperConnectString(), retryPolicy)) {
            client.start();
            String root = "/storm/leader-lock";
            Stat exists = client.checkExists().forPath(root);
            if (exists == null) {
                client.create().creatingParentsIfNeeded().forPath(root);
            }
        } catch (Exception e) {
            LOG.error("Unable to create leaderlock", e);
        } finally {
        }
    } catch (Exception e) {
        throw new UnableToStartException("Unable to start flux topology: " + getTopologyLocation(), e);
    }
}