Tickets :: Comment on [#12506] Contacts sync with ActiveSync get duplicates and not sync

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Comment	>>> Definitely this seems a timeout issue. >>> >>> I have taken sniffer traces of the 500 contacts upload. >>> After waiting 80 seconds for answer from server (Horde), it sends a >>> FIN packet, connection is closed in Android side. >> >> Then there is really nothing Horde can do about this. We don't have >> any control over when Android is going to decide it's taking too >> long. As mentioned below, you should import this many contacts on the >> Turba side first. > > Well, I see 2 issues here: > > 1. With this timeout issue Android device thinks that contacts are > not uploaded and then tries to upload contacts again and again. > Just 1 android device managed to turn down my mysql in some hours > with hundreds of dups... > It is a real problem if we think that admins (we) can't control what > users do with their devices and this issue is rather trivial. > I think that something should be used to limit this problem somehow, > blocking android device if we detect this problem or something. Don't > know how. > > 2. About the real timeout issue, I was thinking about limiting and > accepting just 20 entries from the phone at a time. > I am not an ActiveSync expert, should this work or you must accept > the full sync? > I was looking into Horde Activesync code to do this but I am a total > newbie here. >
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