private void decrementCurrentRequestsIfOneInflight(ChannelHandlerContext ctx) {
            if (ctx.channel().attr(ATTR_REQ_INFLIGHT).getAndSet(null) != null) {
                groupMetrics.getForCurrentEventLoop().decrementCurrentRequests();
            }
        }
User: michaels@netflix.com
Date: 2/6/17
Time: 2:21 PM
zuul-core/src/main/java/com/netflix/netty/common/metrics/PerEventLoopMetricsChannelHandler.java