Fernando Giorgetti created DISPATCH-1931:
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Summary: HTTP client not seeing a reply when sending a request
through the TCP adaptor
Key: DISPATCH-1931
URL: https://issues.apache.org/jira/browse/DISPATCH-1931
Project: Qpid Dispatch
Issue Type: Bug
Components: Protocol Adaptors
Reporter: Fernando Giorgetti
In a two router topology (using Skupper on Kubernetes), an HTTP client (curl)
was not
seeing any response from the routers for requests going through a TCP adaptor.
The request was reaching the router that has the TCP connector to the HTTP
Server,
but the request was not reaching the HTTP server and the HTTP client is being
disconnected
with no reply from the router.
I have also executed the HTTP client (curl) from inside the router container,
to avoid issues
with the Kubernetes service and observed the same outcome.
The TCP Listener that was causing issues was: nginx-1-svc-exp-notarget port
1026 (from router named private-annotated-1-skupper-router-746455769d-jcmmh).
{noformat}
[root@skupper-service-controller-78747bf9b6-xwclq app]# curl --trace
/tmp/curl.error nginx-2-svc-exp-notarget:8080
curl: (52) Empty reply from server
[root@skupper-service-controller-78747bf9b6-xwclq app]# cat /tmp/curl.error
== Info: Rebuilt URL to: nginx-2-svc-exp-notarget:8080/
== Info: Trying 10.111.1.35...
== Info: TCP_NODELAY set
== Info: Connected to nginx-2-svc-exp-notarget (10.111.1.35) port 8080 (#0)
=> Send header, 93 bytes (0x5d)
0000: 47 45 54 20 2f 20 48 54 54 50 2f 31 2e 31 0d 0a GET / HTTP/1.1..
0010: 48 6f 73 74 3a 20 6e 67 69 6e 78 2d 32 2d 73 76 Host: nginx-2-sv
0020: 63 2d 65 78 70 2d 6e 6f 74 61 72 67 65 74 3a 38 c-exp-notarget:8
0030: 30 38 30 0d 0a 55 73 65 72 2d 41 67 65 6e 74 3a 080..User-Agent:
0040: 20 63 75 72 6c 2f 37 2e 36 31 2e 31 0d 0a 41 63 curl/7.61.1..Ac
0050: 63 65 70 74 3a 20 2a 2f 2a 0d 0a 0d 0a cept: */*....
== Info: Empty reply from server
== Info: Connection #0 to host nginx-2-svc-exp-notarget left intact{noformat}
Or when executed directly from the router pod:
{noformat}
[root@skupper-router-746455769d-jcmmh bin]# curl --trace - 0.0.0.0:1026
== Info: Trying 0.0.0.0:1026...
== Info: TCP_NODELAY set
== Info: Connected to 0.0.0.0 (127.0.0.1) port 1026 (#0)
=> Send header, 76 bytes (0x4c)
0000: 47 45 54 20 2f 20 48 54 54 50 2f 31 2e 31 0d 0a GET / HTTP/1.1..
0010: 48 6f 73 74 3a 20 30 2e 30 2e 30 2e 30 3a 31 30 Host: 0.0.0.0:10
0020: 32 36 0d 0a 55 73 65 72 2d 41 67 65 6e 74 3a 20 26..User-Agent:
0030: 63 75 72 6c 2f 37 2e 36 35 2e 33 0d 0a 41 63 63 curl/7.65.3..Acc
0040: 65 70 74 3a 20 2a 2f 2a 0d 0a 0d 0a ept: */*....
== Info: Recv failure: Connection reset by peer
== Info: Closing connection 0
curl: (56) Recv failure: Connection reset by peer{noformat}
I am attaching some other logs from both routers to help with the investigation.
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