presto-cassandra/src/main/java/io/prestosql/plugin/cassandra/BackoffRetryPolicy.java/BackoffRetryPolicy/onUnavailable
class BackoffRetryPolicy:    @Override
    public RetryDecision onUnavailable(Statement statement, ConsistencyLevel consistencyLevel, int requiredReplica, int aliveReplica, int retries)
    {
        if (retries >= 10) {
            return RetryDecision.rethrow();
        }

        try {
            int jitter = ThreadLocalRandom.current().nextInt(100);
            int delay = (100 * (retries + 1)) + jitter;
            Thread.sleep(delay);
            return RetryDecision.retry(consistencyLevel);
        }
        catch (InterruptedException e) {
            Thread.currentThread().interrupt();
            return RetryDecision.rethrow();
        }
    }