[erlang-questions] gen_server doesn't respond

Sergej Jurecko <>
Tue Jun 4 14:30:19 CEST 2013


Are you absolutely sure you don't use any NIFs? What applications do you use besides your own? Because it sounds like the scheduler locks that NIFs cause.
Or are you dependent on hard drive performance maybe? Erlang might have been waiting for I/O.


Sergej

On Jun 4, 2013, at 2:27 PM, Park, Sungjin wrote:

> Thanks for your concern Max.
> 
> I might have missed some points in the explanation though.
> There were more processes not responding when it happened.
> Actually most of the processes across all 4 nodes in the cluster got stuck including ranch_conns_sup etc. etc.  Strange enough, the system top had been decent like under 10% both cpu and memory.  I also think that I might be too lucky to get exact answer by sharing just this amount of information.  I just want to get some hint from rough ideas or similar experiences.  Thanks.
> 
> 
> 
> On Tue, Jun 4, 2013 at 9:11 PM, Max Lapshin <> wrote:
> No. You are missing something else in _your_ code. The problem is in it.
> 
> While you will "prepare" your code, you will loose it.
> 
> 
> 
> -- 
> Park, Sungjin
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