ZMQ Heartbeat causes disconnect from server

[jtraue]

Hi,
my client application disconnected randomly from the server due to a timeout while waiting for the server to reply to a message. I was able to trace the problem down to zeromq's heartbeats. If zmq transmits a heartbeat while I want to send a message, my message is dropped. Naturally, the server does not reply to messages which never came in , resulting in a timeout.
My observations adhere to a bug reported in zmq: zeromq/libzmq#3060 As of version 4.3.0 is should be fixed.

When I disable the heartbeats, everything seems to be fine. Unfortunately, I did not have time to try zeromq's version 4.3.0.

[hhaim]

Interesting, we added heartbeat and latest fixes from zmq repo to solve this type of problem and firewall disconnect issues. Cisco users reported back that old issues solved by latest heartbeat fix. Did you check with latest image? Could you provide more information? Thanks, Hanoh

On Fri, 15 Feb 2019 at 11:15 jtraue ***@***.***> wrote: Hi, my client application disconnected randomly from the server due to a timeout while waiting for the server to reply to a message. I was able to trace the problem down to zeromq's heartbeats. If zmq transmits a heartbeat while I want to send a message, my message is dropped. Naturally, the server does not reply to messages which never came in , resulting in a timeout. My observations adhere to a bug reported in zmq: zeromq/libzmq#3060 <zeromq/libzmq#3060> As of version 4.3.0 is should be fixed. When I disable the heartbeats, everything seems to be fine. Unfortunately, I did not have time to try zeromq's version 4.3.0. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#193>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AMbjvV91HBwMIjGmwd7WL-yvWFPh6z-gks5vNnq9gaJpZM4a9PYQ> .

-- Hanoh Sent from my iPhone

[hhaim]

It seems we don’t have the fix for this issue https://github.com/cisco-system-traffic-generator/trex-core/blob/master/external_libs/zmq-x86_64/how_to_build.txt Thanks for reporting Thanks, Hanoh

On Fri, 15 Feb 2019 at 11:15 jtraue ***@***.***> wrote: Hi, my client application disconnected randomly from the server due to a timeout while waiting for the server to reply to a message. I was able to trace the problem down to zeromq's heartbeats. If zmq transmits a heartbeat while I want to send a message, my message is dropped. Naturally, the server does not reply to messages which never came in , resulting in a timeout. My observations adhere to a bug reported in zmq: zeromq/libzmq#3060 <zeromq/libzmq#3060> As of version 4.3.0 is should be fixed. When I disable the heartbeats, everything seems to be fine. Unfortunately, I did not have time to try zeromq's version 4.3.0. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#193>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AMbjvV91HBwMIjGmwd7WL-yvWFPh6z-gks5vNnq9gaJpZM4a9PYQ> .

-- Hanoh Sent from my iPhone

[hhaim]

Can you verify with latest master code with v4.3.1 ZMQ lib?

[jtraue]

I can not reproduce the error using master and 4.3.1 anymore.

[hhaim]

Thanks again for your finding