[erlang-questions] Investigate an infinite loop on production servers
Thu May 23 11:13:19 CEST 2013
I have launch the etop on my computer monitoring the production server… hoping that I will see something wrong !
Thank you for your help so far (to All).
I'll come back to you as soon as I have more information with etop.
Le 23 mai 2013 à 07:38, Vance Shipley <vances@REDACTED> a écrit :
> On Thu, May 23, 2013 at 04:00:07AM +0200, Morgan Segalis wrote:
> } I'm having a bit of an issue with my production servers.
> You will find that etop is your friend:
> Run etop from the command line and sort on the column you're
> interested in. To watch memory usage:
> etop -node tiger@REDACTED -sort memory
> This will list the processes by memory size in decreasing order.
> This shows you the memory hogs. Watch it as it starts to get
> into trouble and you should see where the memory is getting used.
> As Bob points out the most common problem is that a process's
> inbox will start to fill up. Once this starts happening it's
> the beginning of the end. Another process may start eating up
> memory and the node may crash because it has requested more than
> is available bt the root cause was that one process not having
> time to service the messages at the rate they are received.
> To watch for message queue lengths:
> etop -node tiger@REDACTED -sort msg_q
> The above will list the processes in decreasing order of inbox
> size. They should all be zero, and sometimes one, normally. If
> you have a problem you'll see one process stay at the top and it's
> message queue length will start to grow over time.
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