[zeromq-dev] Assertion failed on invalid arguments

[Pieter Hintjens]

Looks like an error in the Windows code, getting WSAEINVAL on that
setsockopt call.

We'd have to find out what the actual cause it; perhaps you can patch
your code to print the arguments sent to the setsockopt call, when
such an error happens.

Simply ignoring the error is also possible yet that would probably
lead to inconsistent behavior and lost messages. It's better to be
sure of what's going on here.

-Pieter

On Tue, Jun 2, 2015 at 9:45 AM, Ori Barak <oribarak at microsoft.com> wrote:
> Hi,
>
>
>
> We have two production services which uses ZMQ push pull sockets to
> communicate.
>
> We used ZMQ 3.2.3 and clrzmq running on windows server 2012 for a while and
> as the traffic increased and perhaps the hosting environment has changed (OS
> version changes and networking topology) we started noticing that the
> sending process is crashing from time to time (Every couple of minutes)
>
>
>
> I upgraded ZMQ to the latest stable version (4.1.0.15) and switched to use
> clrzmq4 but I’m still seeing the same crashes as before.
>
>
>
> The properties we set on the push sockets are: BufferSize: Int.max,
> HighWatermark: 10000000, Linger: 1 sec
>
> Also since the sender is connected to a load balancer we manually
> reconnecting the sockets every 3 seconds to get a health receiver machine.
>
>
>
> The process crashes silently and the error message printed is: Assertion
> failed: Invalid argument (..\..\..\..\src\tcp.cpp:48)
>
> When looking at the event viewer I see this error:
>
>
>
> Faulting module name: KERNELBASE.dll, version: 6.2.9200.16864, time stamp:
> 0x531d34d8
>
> Exception code: 0x40000015
>
> Fault offset: 0x0000000000047b8c
>
> Faulting process id: 0xa88
>
> Faulting application start time: 0x01d09cf8127ac087
>
> Faulting module path: C:\Windows\system32\KERNELBASE.dll
>
> Report Id: ab433e69-08ec-11e5-93f6-008cfa0438b3
>
> Faulting package full name:
>
> Faulting package-relative application ID:
>
>
>
> I saw that there are some known issue on ‘Assertion failed: Invalid
> arguments’ at  https://zeromq.jira.com/browse/LIBZMQ-207 and
> https://zeromq.jira.com/browse/LIBZMQ-526
>
> But they are both seem to be closed as fixed.
>
>
>
> Any idea how I can further investigate the problem?
>
>
>
> Thanks,
>
> Ori
>
>
>
>
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