It is possible the samsung radio is GCM aware. That would be bad. I've added an internal bug to add a CTS test for this.
On Thu, Apr 18, 2013 at 8:21 PM, Long Pu <long...@gmail.com> wrote: > It's galaxy S2. > > I believe the GCM works on this phone. I am wondering what GCM does to > keep his socket alive. > It would not seed keep alive packets in short period like several seconds, > this would burn > out battery very quickly. > > My guess is that the carrier can recognize the GCM tcp connection and only > keep it alive. > > Cheers. > Long > > > On Fri, Apr 19, 2013 at 12:00 AM, Robert Greenwalt > <rgreenw...@google.com>wrote: > >> What phone hardware? >> >> >> On Thu, Apr 18, 2013 at 3:27 AM, Long Pu <long...@gmail.com> wrote: >> >>> We only see this issue on Boost phones on WIMAX actually. Pure Sprint >>> phones work fine. >>> >>> The minimal required period is a crazy value like 3~5 seconds. Hope >>> this info can help. >>> Our guess is that maybe Boost rents other company's WIMAX network, so >>> they would like to try their best to clean up idle connections. >>> >>> >>> Thanks. >>> >>> Cheers. >>> Long >>> >>> >>> >>> On Thu, Apr 18, 2013 at 1:03 AM, Robert Greenwalt <rgreenw...@google.com >>> > wrote: >>> >>>> Thanks Long Pu for the reasoning for not using GCM. >>>> >>>> You only have this problem on sprint wimax, correct? Have to tried >>>> very frequent keep-alives? Figuring out roughly what the required period >>>> is may help us find the cause. We can talk with Sprint and Samsung about >>>> it, but the timeout info would be useful before that. >>>> >>>> R >>>> >>>> >>>> On Wed, Apr 17, 2013 at 7:28 AM, Long Pu <long...@gmail.com> wrote: >>>> >>>>> We have to consider multiple platforms(iOS, Android, Blackberry). On >>>>> iOS, push notification >>>>> is not an option for our application. If use GCM, we need another >>>>> extra special design especially for android. >>>>> >>>>> >>>>> On Mon, Apr 15, 2013 at 11:23 PM, Robert Greenwalt < >>>>> rgreenw...@google.com> wrote: >>>>> >>>>>> Could you use GCM<http://developer.android.com/google/gcm/index.html> >>>>>> instead >>>>>> of rolling your own long-lived connection with independent keepalive? >>>>>> It'll be better for the users battery and better for the carriers >>>>>> network >>>>>> and you won't have to figure out issues like these. >>>>>> >>>>>> >>>>>> On Sat, Apr 13, 2013 at 3:35 AM, Long <long...@gmail.com> wrote: >>>>>> >>>>>>> Hi Developers, >>>>>>> I have an background service which connects my server with a TCP >>>>>>> connection. >>>>>>> My background service sends a ping packet to my server every >>>>>>> 4minutes to keep the socket alive. >>>>>>> The problem is that the device can not get the packet from the >>>>>>> server after a short time(3 seconds from my test) after the ping is >>>>>>> sent. >>>>>>> This app works fine on other networks(AT&T, verizon). >>>>>>> >>>>>>> The strange thing is that if I force the device to connect to >>>>>>> 3G(EVDO revision A), it works fine. >>>>>>> >>>>>>> It seems to me that, on Sprint 4G network, when an app sends a >>>>>>> packet through a tcp socket, and then the socket is idle for >>>>>>> several seconds, then the app will never be able to receive packets >>>>>>> from this socket. >>>>>>> >>>>>>> I don't think it's related to the 4G signal, since this issue can >>>>>>> be reproduced every time. >>>>>>> >>>>>>> Any suggestions? >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> -- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "Android Developers" group. >>>>>>> To post to this group, send email to >>>>>>> android-developers@googlegroups.com >>>>>>> To unsubscribe from this group, send email to >>>>>>> android-developers+unsubscr...@googlegroups.com >>>>>>> For more options, visit this group at >>>>>>> http://groups.google.com/group/android-developers?hl=en >>>>>>> --- >>>>>>> You received this message because you are subscribed to the Google >>>>>>> Groups "Android Developers" group. >>>>>>> To unsubscribe from this group and stop receiving emails from it, >>>>>>> send an email to android-developers+unsubscr...@googlegroups.com. >>>>>>> >>>>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>>>> >>>>>>> >>>>>>> >>>>>> >>>>>> -- >>>>>> -- >>>>>> You received this message because you are subscribed to the Google >>>>>> Groups "Android Developers" group. >>>>>> To post to this group, send email to >>>>>> android-developers@googlegroups.com >>>>>> To unsubscribe from this group, send email to >>>>>> android-developers+unsubscr...@googlegroups.com >>>>>> For more options, visit this group at >>>>>> http://groups.google.com/group/android-developers?hl=en >>>>>> --- >>>>>> You received this message because you are subscribed to a topic in >>>>>> the Google Groups "Android Developers" group. >>>>>> To unsubscribe from this topic, visit >>>>>> https://groups.google.com/d/topic/android-developers/3FvPZp5n2K0/unsubscribe?hl=en >>>>>> . >>>>>> To unsubscribe from this group and all its topics, send an email to >>>>>> android-developers+unsubscr...@googlegroups.com. >>>>>> >>>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>>> >>>>>> >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Things don' happen. Things are made to happen. >>>>> >>>>> -- >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Android Developers" group. >>>>> To post to this group, send email to >>>>> android-developers@googlegroups.com >>>>> To unsubscribe from this group, send email to >>>>> android-developers+unsubscr...@googlegroups.com >>>>> For more options, visit this group at >>>>> http://groups.google.com/group/android-developers?hl=en >>>>> --- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Android Developers" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to android-developers+unsubscr...@googlegroups.com. >>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>> >>>>> >>>>> >>>> >>>> -- >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Android Developers" group. >>>> To post to this group, send email to >>>> android-developers@googlegroups.com >>>> To unsubscribe from this group, send email to >>>> android-developers+unsubscr...@googlegroups.com >>>> For more options, visit this group at >>>> http://groups.google.com/group/android-developers?hl=en >>>> --- >>>> You received this message because you are subscribed to a topic in the >>>> Google Groups "Android Developers" group. >>>> To unsubscribe from this topic, visit >>>> https://groups.google.com/d/topic/android-developers/3FvPZp5n2K0/unsubscribe?hl=en >>>> . >>>> To unsubscribe from this group and all its topics, send an email to >>>> android-developers+unsubscr...@googlegroups.com. >>>> For more options, visit https://groups.google.com/groups/opt_out. >>>> >>>> >>>> >>> >>> >>> >>> -- >>> Things don' happen. Things are made to happen. >>> >>> -- >>> -- >>> You received this message because you are subscribed to the Google >>> Groups "Android Developers" group. >>> To post to this group, send email to android-developers@googlegroups.com >>> To unsubscribe from this group, send email to >>> android-developers+unsubscr...@googlegroups.com >>> For more options, visit this group at >>> http://groups.google.com/group/android-developers?hl=en >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "Android Developers" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to android-developers+unsubscr...@googlegroups.com. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >>> >>> >> >> -- >> -- >> You received this message because you are subscribed to the Google >> Groups "Android Developers" group. >> To post to this group, send email to android-developers@googlegroups.com >> To unsubscribe from this group, send email to >> android-developers+unsubscr...@googlegroups.com >> For more options, visit this group at >> http://groups.google.com/group/android-developers?hl=en >> --- >> You received this message because you are subscribed to a topic in the >> Google Groups "Android Developers" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/android-developers/3FvPZp5n2K0/unsubscribe?hl=en >> . >> To unsubscribe from this group and all its topics, send an email to >> android-developers+unsubscr...@googlegroups.com. >> For more options, visit https://groups.google.com/groups/opt_out. >> >> >> > > > > -- > Things don' happen. Things are made to happen. > > -- > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to android-developers@googlegroups.com > To unsubscribe from this group, send email to > android-developers+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en > --- > You received this message because you are subscribed to the Google Groups > "Android Developers" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to android-developers+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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