*/
    protected void waitForYellowStatus(final FessConfig fessConfig) {
        Exception cause = null;
        final SystemHelper systemHelper = ComponentUtil.getSystemHelper();
        final long startTime = systemHelper.getCurrentTimeAsLong();
        for (int i = 0; i < maxEsStatusRetry; i++) {
            try {
                final ClusterHealthResponse response = client.admin()
                        .cluster()

            return true;
        }
        final long startTime = getCurrentTimeAsLong();
        final String threadName = Thread.currentThread().getName();
        try {
            waitingThreadNames.add(threadName);
            while (current >= percent) {
                if (timeoutInMillis > 0 && getCurrentTimeAsLong() - startTime > timeoutInMillis) {
                    if (logger.isInfoEnabled()) {