builder.field(NUMBER_OF_IN_FLIGHT_FETCH, response.getNumberOfInFlightFetch());
            }
            if (fieldSet.contains(TASK_MAX_WAIT_TIME_IN_QUEUE_IN_MILLIS)) {
                builder.field(TASK_MAX_WAIT_TIME_IN_QUEUE_IN_MILLIS, response.getTaskMaxWaitingTime().getMillis());
            }
            if (fieldSet.contains(ACTIVE_SHARDS_PERCENT_AS_NUMBER)) {

        fail("could not start job.");
    }

    protected static void waitJob(final String namePrefix) {
        Boolean isRunning = false;
        int count = 0;

        while (count < 300 && !isRunning) { // Wait until the crawler starts
            ThreadUtil.sleep(500);
            count++;
            final Map<String, Object> scheduler = getSchedulerItem(namePrefix);
            assertTrue(scheduler.containsKey("running"));

                .param("requests_per_second", requestsPerSecond).param("scroll", scroll).param("max_docs", maxDocs)
                .param("wait_for_completion", Boolean.toString(waitForCompletion)).body(source).execute()) {
            if (response.getHttpStatusCode() == 200) {
                return true;
            }

            try {
                latch.await(10, TimeUnit.SECONDS);
            } catch (final InterruptedException e) {
                logger.warn("Interrupted to wait a process.", e);
            }
            try {
                process.destroyForcibly().waitFor(processDestroyTimeout, TimeUnit.SECONDS);
                return process.exitValue();