WSO2 ESB doesn't close connection

Question

I'm trying to get working WSO2 ESB 4.7.0 with PHP 5.4.9 SoapClient. I've got a problem when I use SoapClient in WSDL mode with ESB echo service, that connection from ESB is not closed after sending WSDL. I'm able to reproduce this problem also with telnet as client.

$ telnet localhost 8280

HTTP 1.0 request:

GET /services/echo?wsdl HTTP/1.0

HTTP 1.0 response:

HTTP/1.0 200 OK
Content-Type: text/xml
Date: Mon, 29 Jul 2013 07:37:20 GMT
Connection: Close

And after response connection stays open (as would stay with "Connection: keep-alive" header).

Is this a bug or problem in configuration? Is anybody experiencing the same problem?

Answer 1

I think I have a similar issue. My LB is querying Version service but after a while the ESB stops responding and a bunch of connection timeouts are visible in the logs. I think the ESB is not releasing its connections. Must be some configuration option to specify to close connection or timeout after a period.