[DISPATCH-1124] Assert(buf) in qd_message_send; message copied locally and routed onward

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.3.0
• Fix Version/s: 1.4.0
• Component/s: Routing Engine

Environment

Fedora 27/28.

• Assignee: Charles E. Rolke
• Reporter: Charles E. Rolke
• Created: 18/Sep/18 17:01
• Updated: 12/Apr/19 15:16
• Resolved: 20/Sep/18 14:08

Description

Three routers connected in linear chain.
Two systems connected with wireless lan.
This does not fail as frequently with all routers on localhost.

----------------       ---------------
| System A        |       | System B       |
| ------       |       | ---------   |
| | green +--------------->| blue     +----> rcvr2
| |       |       |       | ----------   |
| |       |       |       |                |
| |       |       |       | ----------   |
| |       |<---------------+ collectd |<---- sndr
| ---       |       | +---------   |
----|---------       ---------------
      V
    rcvr1

System A:

    green router
        5672 - normal listener
        20001 - inter-router listener

System B:

   blue router
        5672 - normal listener
        connector to green

   collectd router
        15672 - normal listener
        connector to green

Failing test:

   Start receiver 1 on A:5672  (green)
   Start receiver 2 on B:5672  (blue)
   Start sender on     B:15672 (collectd)

   Receivers have credit of 1000
   Senders send 500-byte payloads. And plenty of 'em.

Data path:
   messages received on collectd forwarded to green
   green receives interrouter; sends to local receiver, forwards to blue
   blue receives interrouter; sends to local receiver