[jira] [Created] (DISPATCH-360) Sender and receiver cannot communicate using a network of 3 inter-connected routers having insecure connections

["Vishal Sharda (JIRA)" <ji...@apache.org>]

Vishal Sharda created DISPATCH-360:
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             Summary: Sender and receiver cannot communicate using a network of 3 inter-connected routers having insecure connections
                 Key: DISPATCH-360
                 URL: https://issues.apache.org/jira/browse/DISPATCH-360
             Project: Qpid Dispatch
          Issue Type: Bug
          Components: Routing Engine
    Affects Versions: 0.6.0
         Environment: Debian 8.3, Apache Qpid Proton 0.12.2 for drivers and dependencies, Hardware: 2 CPUs, 15 GB RAM, 60 GB HDD on 3 separate machines
            Reporter: Vishal Sharda
            Priority: Blocker


In order to isolate the issues that I am getting with 2-way SSL connections among routers, I created a cluster of 3 inter-connected routers (R1, R2 and R3 with R2 connecting to R1 and R3 connecting to both R1 and R2) without any type of SSL (I had been using just 2 routers so far but our actual cluster consists of 3 nodes).  All connections were insecure as shown in my config files.

When I tried sending 4 messages using simple_send.py to R1 after starting simple_recv.py to receive from R2, I saw no messages were sent.

If I stop R3 and reduce the cluster to just two nodes, it works fine.
If I have 2-way SSL connections between all the 3 routers, it again works fine.

In my more than 20 runs to test this scenario of sending just 4 messages, it even worked a few times after waiting for very long.  In the other two cases above, I always got the messages instantaneously (there were no other senders/receivers active).

The drivers.tar.gz that I attached in DISPATCH-343 either timed out or returned with unclear status when trying to send just 4 messages from 1 sender (connected to R1) to 1 receiver (connected to R2).  It showed successful just once.  The behavior is completely non-deterministic.

This basic test working non-deterministically some times and failing most of the times seemed very weird and I turned to running routers outside gdb but the results were similar.  In the process of stopping/restarting the 3 routers for testing this scenario, I also got a crash (backtrace attached).



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