当Nginx入口重新加载以进行POST时，java Apache HTTP客户端抛出NoHttpResponseException

Question

当我们重新加载Nginx入口配置时，我们会得到一些POST请求的NoHttpResponseException。这在OkHttp客户端或纯ab -c 100 -n 1000 https://...中都不会发生

使用最新版本4.5.7，并禁用Gzip压缩以获得可见性。在DefaultHttpResponseParser中放置一个断点：

    @Override
    protected HttpResponse parseHead(
            final SessionInputBuffer sessionBuffer) throws IOException, HttpException {
        //read out the HTTP status string
        int count = 0;
        ParserCursor cursor = null;
        do {
            // clear the buffer
            this.lineBuf.clear();
            final int i = sessionBuffer.readLine(this.lineBuf);
            if (i == -1 && count == 0) {
                // The server just dropped connection on us
                throw new NoHttpResponseException("The target server failed to respond");
            }

当发生错误时，我们观察到缓冲区包含以下内容：

0

1.1 200 OK
Server: nginx/1.15.5
Date: Tue, 19 Mar 2019 08:51:27 GMT
Content-Type: application/json;charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
Vary: Accept-Encoding
Strict-Transport-Security: max-age=15724800; includeSubDomains

10
{"success":true}

但对于常规请求，它有以下内容，这更有意义：

HTTP/1.1 200 OK
Server: nginx/1.15.5
Date: Tue, 19 Mar 2019 08:52:30 GMT
Content-Type: application/json;charset=UTF-8
Transfer-Encoding: chunked
Connection: keep-alive
Vary: Accept-Encoding
Strict-Transport-Security: max-age=15724800; includeSubDomains

10
{"success":true}

现在，我不确定出了什么问题，因为okhttp和ab都工作正常。尝试了许多版本，但似乎仍然存在