But I still do not understand why the client should ask so often for new work. If your server has work the client downloads as much as he is configured for. Than the client has enough work and should not blame the server again. Other wise the server will not be able to handle the load of hundredthousands of requests. Even if you don't have work the clients should not ask very frequently. The client starts in this case to ask frequently for new work. But if there is still no work the intervals geting longer.
yoyo Patricio Vidal schrieb: > Sorry, I don't understand. From what I found in the wiki trickle messages are > from the application to the server and vice-versa. > > We need the clients to contact the server and ask for work every few minutes. > What I understand is that work is only given to clients when they ask for it. > > The issue with 7.0.25 is that when there is no work the clients start taking > longer and longer time to ask for work. Then, when there is work the clients > maybe waiting hours before asking for it. > > Patricio. > > > > > yoyo > <yoyo@mailueberfall > .de> > To > Patricio Vidal > 08/09/2012 03:35 PM <[email protected]> > > cc > [email protected], > [email protected], > [email protected] > > Subject > Re: [boinc_dev] Changes to client > scheduler from 6.12.33 to 7.0.25? > > > > > > > > > > > For what reason should the client contact the server so often? > You just can use trickle messages to be sent by the client. > > yoyo > > Patricio Vidal schrieb: > Yes, for our project we need the clients to contact the server every few > minutes. We send jobs that last from 20 minutes to few hours. If the > clients > don't contact the server for several hour then we are in trouble. > > Regards, > Patricio. > > > > > > > John.McLeod@sybase. > > com > > To > 08/09/2012 11:21 AM Patricio Vidal > > <[email protected]> > > cc > [email protected], > > > [email protected] > > Subject > Re: [boinc_dev] Changes to > client > > scheduler from 6.12.33 to > 7.0.25? > > > > > > > > > > > > It was removed in order to avoid hammering projects from clients that > were > not going to ask for work and had no work they were working on. > > Perhaps, the code could be modified slightly again. Only ignore the > setting for contact server every X if the client has no work from the > server and the client would not ask for work from the project. > > BTW, a really short contact period will play havoc with multi project > clients as they will not be able to get work from elsewhere while you > have > no work. > > jm7 > > > |------------> > | From: | > |------------> > > > > --------------------------------------------------------------------------------------------------------------------------------------------------| > > > > |Patricio Vidal <[email protected]> > | > > > > --------------------------------------------------------------------------------------------------------------------------------------------------| > > > > |------------> > | To: | > |------------> > > > > --------------------------------------------------------------------------------------------------------------------------------------------------| > > > > |<[email protected]> > | > > > > --------------------------------------------------------------------------------------------------------------------------------------------------| > > > > |------------> > | Date: | > |------------> > > > > --------------------------------------------------------------------------------------------------------------------------------------------------| > > > > |08/09/2012 11:00 AM > | > > > > --------------------------------------------------------------------------------------------------------------------------------------------------| > > > > |------------> > | Subject: | > |------------> > > > > --------------------------------------------------------------------------------------------------------------------------------------------------| > > > > |[boinc_dev] Changes to client scheduler from 6.12.33 to 7.0.25? > | > > > > --------------------------------------------------------------------------------------------------------------------------------------------------| > > > > |------------> > | Sent by: | > |------------> > > > > --------------------------------------------------------------------------------------------------------------------------------------------------| > > > > |<[email protected]> > | > > > > --------------------------------------------------------------------------------------------------------------------------------------------------| > > > > > > > > > > Hello, > > I noticed a change in the client scheduler when moving from 6.12.33 to > 7.0.25: I > have the <next_rpc_delay> set 180 in the config.xml. > > For 6.12.33 the clients contact the server even if there is no work, > which > is > our desired behavior: > > 8/8/2012 11:39:09 PM | AlgoGrid | Requesting new tasks for CPU > 8/8/2012 11:42:12 PM | AlgoGrid | Requesting new tasks for CPU > 8/8/2012 11:45:15 PM | AlgoGrid | Requesting new tasks for CPU > 8/8/2012 11:48:18 PM | AlgoGrid | Requesting new tasks for CPU > > > For 7.0.25, when there are available task the scheduler contacts the > server > as > expected: > > 8/8/2012 9:26:33 PM | AlgoGrid | Requesting new tasks for CPU > 8/8/2012 9:27:10 PM | AlgoGrid | Requesting new tasks for CPU > > ... but when there is no tasks it starts delaying the request > exponentially: > > 8/8/2012 9:49:45 PM | AlgoGrid | Requesting new tasks for CPU > 8/8/2012 10:08:23 PM | AlgoGrid | Requesting new tasks for CPU > 8/8/2012 10:32:36 PM | AlgoGrid | Requesting new tasks for CPU > 8/8/2012 11:37:35 PM | AlgoGrid | Requesting new tasks for CPU > 8/9/2012 2:59:13 AM | AlgoGrid | Requesting new tasks for CPU > 8/9/2012 10:41:06 AM | AlgoGrid | Requesting new tasks for CPU > > > Is there a new option to force the rpc call even if there is no tasks > available? > We need this behavior because our boinc project needs a quick response > from > the > clients when we schedule a job (we have workunits of about 1 min > processing > time > and we schedule thousands at a time). > > Thank you, > Patricio. > > > The server made the following annotations > > > --------------------------------------------------------------------------------- > > > > > This message contains information that may be privileged or confidential > and is the property of Beckman Coulter, Inc. 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