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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