[erlang-questions] Get cookie time-out
Ali Sabil
ali.sabil@REDACTED
Tue Jun 7 16:21:56 CEST 2011
Hi,
On Tue, Jun 7, 2011 at 2:51 PM, Olivier BOUDEVILLE
<olivier.boudeville@REDACTED> wrote:
>
> Hello,
>
> We are running a distributed application over a cluster and recently, during
> its deployment over 45 nodes, we have encountered a time-out apparently
> related to the inter-node cookie retrieval:
> "{timeout,{gen_server,call,[auth,{get_cookie,'SOME_NODE...".
>
> We are not that familiar with OTP, but apparently there could be a way of
> specifying a time-out for such an internal gen_server: we have indeed in
> lib/kernel/src/auth.erl:
>
> """
> start_link() ->
> gen_server:start_link({local, auth}, auth, [], []).
> """
>
> I suppose we could add a {timeout,Time} option there ? (there must be a
> default time-out, even if I do not know its value)
The default timeout value for gen_server:call() is 5000 ms, maybe you
could try replacing the gen_server:call/2 with a gen_server:call/3 in
lib/kernel/src/auth.erl so that:
"""
get_cookie(Node) ->
gen_server:call(auth, {get_cookie, Node}).
"""
becomes:
"""
get_cookie(Node) ->
gen_server:call(auth, {get_cookie, Node}, infinity).
"""
> Unless there is a less hackish way of waiting longer, maybe with some
> command-line option?
> More generally, maybe the default value for that time-out should be
> increased?
>
> Thanks in advance for any hint,
> Best regards,
>
> Olivier Boudeville.
> ---------------------------
> Olivier Boudeville
>
> EDF R&D : 1, avenue du Général de Gaulle, 92140 Clamart, France
> Département SINETICS, groupe ASICS (I2A), bureau B-226
> Office : +33 1 47 65 59 58 / Mobile : +33 6 16 83 37 22 / Fax : +33 1 47 65
> 27 13
>
>
> Ce message et toutes les pièces jointes (ci-après le 'Message') sont établis
> à l'intention exclusive des destinataires et les informations qui y figurent
> sont strictement confidentielles. Toute utilisation de ce Message non
> conforme à sa destination, toute diffusion ou toute publication totale ou
> partielle, est interdite sauf autorisation expresse.
>
> Si vous n'êtes pas le destinataire de ce Message, il vous est interdit de le
> copier, de le faire suivre, de le divulguer ou d'en utiliser tout ou partie.
> Si vous avez reçu ce Message par erreur, merci de le supprimer de votre
> système, ainsi que toutes ses copies, et de n'en garder aucune trace sur
> quelque support que ce soit. Nous vous remercions également d'en avertir
> immédiatement l'expéditeur par retour du message.
>
> Il est impossible de garantir que les communications par messagerie
> électronique arrivent en temps utile, sont sécurisées ou dénuées de toute
> erreur ou virus.
> ____________________________________________________
>
> This message and any attachments (the 'Message') are intended solely for the
> addressees. The information contained in this Message is confidential. Any
> use of information contained in this Message not in accord with its purpose,
> any dissemination or disclosure, either whole or partial, is prohibited
> except formal approval.
>
> If you are not the addressee, you may not copy, forward, disclose or use any
> part of it. If you have received this message in error, please delete it and
> all copies from your system and notify the sender immediately by return
> message.
>
> E-mail communication cannot be guaranteed to be timely secure, error or
> virus-free.
> _______________________________________________
> erlang-questions mailing list
> erlang-questions@REDACTED
> http://erlang.org/mailman/listinfo/erlang-questions
>
>
More information about the erlang-questions
mailing list