What happens at this point is we have tried to issue an HTTP GET (but
nothing goes out on the wire) and there's no timeout or exception
thrown. So my client application hangs.
On 5/10/2015 6:51 AM, Oleg Kalnichevski wrote:
On Fri, 2015-05-08 at 09:28 -0500, Mark Johnson wrote:
Hi,
I'm having intermittent hangs with a client application that uses the
async HTTPClient. (Its an HTTPS connection also.) I've turned on the
diagnostics logs (attached) and performed a wire capture. My guess is
that the server is not responding to a TCP RESET. One other variable -
I'm going through a VPN connection to get to the server.
Below is the diagnostics of a typical sequence when the failure occurs
(just the last sequence). There’s a small attachment of a Wireshark
capture. I see several cases where a TCP RST occurs in the full
packet capture and it seems to recover until the hang. After the last
TPC RESET, nothing else happens. I do have timeout settings for the
response and connection.
What else do you expect to happen? As far as I can tell the client
closed the connection in response to server closing the connection on
its end.
Oleg
So I'm thinking this is a problem on the server (not responding to
the TCP RST). Is there any way to verify this? The version of
HTTPClient is 4.3.2.
Thanks in advance,
Mark
MainClientExec | | [exchange: 62] start execution
RequestAddCookies | | CookieSpec selected: best-match
RequestAddCookies | | Cookie [version: 0][name:
vcloud-token][value:
Trsj1Hs4btsBVK5jfY1xhf07tNadC0zDS8jkVv6pHPw=][domain:
192.168.70.25][path: /][expiry: null] match
[(secure)192.168.70.25:443/api/task/b6d66a53-8d67-459f-871b-f024021606ea]
RequestAuthCache | | Auth cache not set in the
context
InternalHttpAsyncClient | | [exchange: 62] Request
connection for {s}->https://192.168.70.25:443
lingNHttpClientConnectionManager | | Connection request: [route:
{s}->https://192.168.70.25:443][total kept alive: 1; route allocated:
1 of 2; total allocated: 1 of 20]
lingNHttpClientConnectionManager | | Connection leased: [id:
http-outgoing-47][route: {s}->https://192.168.70.25:443][total kept
alive: 0; route allocated: 1 of 2; total allocated: 1 of 20]
InternalHttpAsyncClient | | [exchange: 62] Connection
allocated: http-outgoing-47 [ACTIVE]
ManagedNHttpClientConnectionImpl | | http-outgoing-47
192.168.14.105:6028<->192.168.70.25:443[ACTIVE][r:w][ACTIVE][r][NOT_HANDSHAKING][inbound
done][][outbound done][][0][0][0][0]: Set attribute http.nio.exchange-handler
ManagedNHttpClientConnectionImpl | | http-outgoing-47
192.168.14.105:6028<->192.168.70.25:443[ACTIVE][rw:w][ACTIVE][rw][NOT_HANDSHAKING][inbound
done][][outbound done][][0][0][0][0]: Event set [w]
HttpAsyncRequestExecutor | | http-outgoing-47 [ACTIVE]
Request ready
MainClientExec | | Connection route already
established
MainClientExec | | [exchange: 62] Attempt 1 to
execute request
MainClientExec | | Target auth state: UNCHALLENGED
MainClientExec | | Proxy auth state: UNCHALLENGED
ManagedNHttpClientConnectionImpl | | http-outgoing-47
192.168.14.105:6028<->192.168.70.25:443[ACTIVE][rw:w][ACTIVE][rw][NOT_HANDSHAKING][inbound
done][][outbound done][][0][0][0][0]: Set timeout 50000
headers | | http-outgoing-47 >>
GET /api/task/b6d66a53-8d67-459f-871b-f024021606ea HTTP/1.1
headers | | http-outgoing-47 >> Accept:
application/*+xml;version=5.1
headers | | http-outgoing-47 >> Connection:
close
headers | | http-outgoing-47 >>
x-vcloud-authorization: Trsj1Hs4btsBVK5jfY1xhf07tNadC0zDS8jkVv6pHPw=
headers | | http-outgoing-47 >> Host:
192.168.70.25
headers | | http-outgoing-47 >> User-Agent:
Apache-HttpAsyncClient/4.0.1 (java 1.5)
headers | | http-outgoing-47 >> Cookie:
vcloud-token=Trsj1Hs4btsBVK5jfY1xhf07tNadC0zDS8jkVv6pHPw=
headers | | http-outgoing-47 >> Cookie2:
$Version=1
ManagedNHttpClientConnectionImpl | | http-outgoing-47
192.168.14.105:6028<->192.168.70.25:443[ACTIVE][rw:w][ACTIVE][rw][NOT_HANDSHAKING][inbound
done][][outbound done][][0][0][0][0]: Event set [w]
MainClientExec | | [exchange: 62] Request completed
ManagedNHttpClientConnectionImpl | | http-outgoing-47
192.168.14.105:6028<->192.168.70.25:443[ACTIVE][rw:w][CLOSED][rw][NOT_HANDSHAKING][inbound
done][][outbound done][][0][0][0][0]: 0 bytes written
HttpAsyncRequestExecutor | | http-outgoing-47 [ACTIVE]:
Disconnected
Nothing after this.
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