Search code examples
httpsoapcxfkeep-alive

CXF doesn't honor keep-alive request by the client

My client is sending: 

POST /xxx/yyy HTTP/1.1
Host: localhost:9009
User-Agent: gSOAP/2.8
Content-Type: text/xml; charset=utf-8
Content-Length: 2442
Connection: keep-alive
SOAPAction: ""

But the server replies: 

HTTP/1.1 200 OK
Content-Type: text/xml;charset=UTF-8
Content-Length: 11182
Server: Jetty(8.1.14.v20131031)

Isn't the server supposed to return "Connection: keep-alive" too?
I see that afterwards the client closes the connection although it is configure to keep the connection open.
I assumed it is because the server didn't provide the keep-alive in the reply (Is that the RFC?).

Solution

  • In my case the reason gSoap closed the connection wasn't related to the HTTP headers returned from server, but to the fact you need to specify the keep-alive flags on both directions by calling: 

        soap_set_imode(this, SOAP_IO_KEEPALIVE);
    soap_set_omode(this, SOAP_IO_KEEPALIVE);

    From what I've read in HTTP 1.1 persistent connections are the default so if the server didn't return "Connection: close" the connection can be used for next request too.