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Posted to dev@qpid.apache.org by "Charles E. Rolke (Jira)" <ji...@apache.org> on 2021/04/30 16:01:00 UTC
[jira] [Resolved] (DISPATCH-2091) TCP adaptor does not close
listener connection when RX window is full
[ https://issues.apache.org/jira/browse/DISPATCH-2091?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Charles E. Rolke resolved DISPATCH-2091.
----------------------------------------
Resolution: Fixed
Fixed at Commit 7ef0a0
> TCP adaptor does not close listener connection when RX window is full
> ---------------------------------------------------------------------
>
> Key: DISPATCH-2091
> URL: https://issues.apache.org/jira/browse/DISPATCH-2091
> Project: Qpid Dispatch
> Issue Type: Bug
> Components: Protocol Adaptors
> Reporter: Charles E. Rolke
> Priority: Blocker
> Fix For: 1.16.0
>
> Attachments: INTA-tcplog.conf, INTB-tcplog.conf
>
>
> A two-router network has TCP Listener on A and TCP Connector on B.
> The test program is a iperf3 server and a client run with
> {code:java}
> iperf3 -c 127.0.0.1 -p 5202 -t 2
> {code}
> Iperf3 creates two connections. The low-volume connection closes OK. The high-volume connection receives a network FIN but never responds with FIN/ACK.
> TCP logging for the stuck connection shows that the RX windows is full. When proton signals that read data is available the adaptor ignores it. This probably interrupts the normal event sequence and a DISCONNECTED event never arrives.
> The event sequence is
> {code:java}
> 2021-04-28 17:13:48.502875 -0400 TCP_ADAPTOR (trace) [C3][L28] handle_incoming PNRC_READ for listener connection. read_closed:F, flow_enabled:T
> 2021-04-28 17:13:48.502896 -0400 TCP_ADAPTOR (debug) [C3] pn_raw_connection_take_read_buffers() took 16, freed 0
> 2021-04-28 17:13:48.502907 -0400 TCP_ADAPTOR (debug) [C3][L28] Granting 16 to pn_raw_connection_give_read_buffers()
> 2021-04-28 17:13:48.503126 -0400 TCP_ADAPTOR (trace) [C3][L28][D22] Continuing listener message with 8192 bytes
> 2021-04-28 17:13:48.503140 -0400 TCP_ADAPTOR (debug) [C3] PN_RAW_CONNECTION_READ Read 8192 bytes. Total read 45482021 bytes
> 2021-04-28 17:13:48.503188 -0400 TCP_ADAPTOR (debug) [C3] PN_RAW_CONNECTION_READ listener Event
> 2021-04-28 17:13:48.503210 -0400 TCP_ADAPTOR (trace) [C3][L28] handle_incoming PNRC_READ for listener connection. read_closed:F, flow_enabled:T
> 2021-04-28 17:13:48.503229 -0400 TCP_ADAPTOR (trace) [C3] TCP RX window CLOSED: bytes in=45488165 unacked=1460232
> 2021-04-28 17:13:48.503244 -0400 TCP_ADAPTOR (debug) [C3] pn_raw_connection_take_read_buffers() took 12, freed 0
> 2021-04-28 17:13:48.503259 -0400 TCP_ADAPTOR (debug) [C3][L28] Granting 12 to pn_raw_connection_give_read_buffers()
> 2021-04-28 17:13:48.503316 -0400 TCP_ADAPTOR (debug) [C3] qdr_tcp_activate: call pn_raw_connection_wake()
> 2021-04-28 17:13:48.503393 -0400 TCP_ADAPTOR (trace) [C3][L28][D22] Continuing listener message with 6144 bytes
> 2021-04-28 17:13:48.503411 -0400 TCP_ADAPTOR (debug) [C3] PN_RAW_CONNECTION_READ Read 6144 bytes. Total read 45488165 bytes
> 2021-04-28 17:13:48.503423 -0400 TCP_ADAPTOR (debug) [C3][L28] qdr_tcp_push
> 2021-04-28 17:13:48.503433 -0400 TCP_ADAPTOR (debug) [C3][L27][D25] qdr_tcp_deliver Delivery event
> 2021-04-28 17:13:48.503445 -0400 TCP_ADAPTOR (info) [C3] EOS
> 2021-04-28 17:13:48.503458 -0400 TCP_ADAPTOR (debug) [C3] handle_outgoing calling pn_raw_connection_write_close(). rcv_complete:T, send_complete:T
> 2021-04-28 17:13:48.503521 -0400 TCP_ADAPTOR (debug) [C3][L28] qdr_tcp_offer: NOOP
> 2021-04-28 17:13:48.503544 -0400 TCP_ADAPTOR (debug) [C3][L28] qdr_tcp_get_credit: NOOP
> 2021-04-28 17:13:48.503565 -0400 TCP_ADAPTOR (debug) [C3] PN_RAW_CONNECTION_WAKE listener
> 2021-04-28 17:13:48.503670 -0400 TCP_ADAPTOR (debug) [C3] PN_RAW_CONNECTION_CLOSED_WRITE listener
> 2021-04-28 17:13:48.503712 -0400 TCP_ADAPTOR (debug) [C3] qdr_tcp_activate: call pn_raw_connection_wake()
> 2021-04-28 17:13:48.503752 -0400 TCP_ADAPTOR (debug) [C3] PN_RAW_CONNECTION_WAKE listener
> 2021-04-28 17:13:48.503830 -0400 TCP_ADAPTOR (debug) [C3][L28][D22] qdr_tcp_delivery_update: disp: 38, settled: false
> 2021-04-28 17:13:48.503852 -0400 TCP_ADAPTOR (debug) [C3][L28][D22] qdr_tcp_delivery_update: disp: 38, settled: false
> 2021-04-28 17:13:48.503868 -0400 TCP_ADAPTOR (debug) [C3][L28] qdr_tcp_get_credit: NOOP
> 2021-04-28 17:13:48.503932 -0400 TCP_ADAPTOR (debug) [C3] PN_RAW_CONNECTION_READ listener Event
> 2021-04-28 17:13:48.503942 -0400 TCP_ADAPTOR (trace) [C3][L28] handle_incoming PNRC_READ for listener connection. read_closed:F, flow_enabled:T
> 2021-04-28 17:13:48.503950 -0400 TCP_ADAPTOR (debug) [C3] pn_raw_connection_take_read_buffers() took 0, freed 0
> 2021-04-28 17:13:48.503957 -0400 TCP_ADAPTOR (debug) [C3][L28] Granting 0 to pn_raw_connection_give_read_buffers()
> 2021-04-28 17:13:48.503965 -0400 TCP_ADAPTOR (debug) [C3] PN_RAW_CONNECTION_READ Read 0 bytes. Total read 45488165 bytes
> 2021-04-28 17:13:48.503973 -0400 TCP_ADAPTOR (debug) [C3] PN_RAW_CONNECTION_NEED_READ_BUFFERS listener
> 2021-04-28 17:13:48.503981 -0400 TCP_ADAPTOR (debug) [C3][L28] Granting 0 to pn_raw_connection_give_read_buffers()
> 2021-04-28 17:13:48.503988 -0400 TCP_ADAPTOR (trace) [C3][L28] handle_incoming PNRC_NEED_READ_BUFFERS for listener connection. read_closed:F, flow_enabled:T
> 2021-04-28 17:13:48.503996 -0400 TCP_ADAPTOR (debug) [C3] pn_raw_connection_take_read_buffers() took 0, freed 0
> 2021-04-28 17:13:48.504003 -0400 TCP_ADAPTOR (debug) [C3][L28] Granting 0 to pn_raw_connection_give_read_buffers(){code}
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