I have seen this too, but what's worse, I've found socket connections taking to long to connect, even when not using DNS.
For example, our software can connect to a PC via LAN using an IP address. Sometimes it will take > 5 seconds, sometimes it will time out. In either case, after such a failure, if I close and re-run the app, it connects immediately. This problem started around the time 1.6 was released. SoftwareForMe.com Makers of PhoneMyPC On Sun, Nov 15, 2009 at 10:33 AM, Mark Wyszomierski <[email protected]>wrote: > How are you all getting around this issue? I am running into it on > some phones given out as demos (G1s running 1.5). About 50% of the > time, my network requests will just hang for about two minutes, then > throw: > > java.net.UnknownHostException: Host is unresolved: myapi.me.com:80 > > this looks embarrassing since the users can open pages through the > browser ok - what is going on? > > Thanks > > On Oct 26, 10:05 am, purvi <[email protected]> wrote: > > Hello, > > > > I am also facing the same problem. I am using a handler to fetch the > > data coming from the network request. I am thinking to throw an alert > > message to the user from my app indicating "No Response from Network" > > or "Network down" or somthing like that so that the user donot see any > > error and the user himself restart the app or take corresponding steps > > instead of showing user an error. But I system gets to know that there > > is no network after all my queries are manipulated and so I dont know > > where exactly can I handle this error. I am able to made it print in > > my LogCat "error[URL not found]" so it doesnot give any "Force Close > > error" but I want the user to be notified about this. > > > > Can you please comment on this and incase if you can help me out with > > this? > > > > Thanks a lot. > > Regards, > > Purvi > > > > On Oct 15, 2:26 am, "[email protected]" > > > > > > > > <[email protected]> wrote: > > > More info: I found out that the web site returns multiple IP addresses > > > on the DNS lookup (see the "Resolving i2.sinaimg.cn line below). This > > > appears to be for load balancing purposes. Could this be the reason > > > that got Android confused? > > > > > $ wgethttp://i2.sinaimg.cn/IT/2009/1014/20091014235428.jpg > > > --23:20:59-- http://i2.sinaimg.cn/IT/2009/1014/20091014235428.jpg > > > => `20091014235428.jpg.1' > > > Resolving i2.sinaimg.cn... 61.172.207.61, 61.172.207.62, > > > 61.172.207.64, ... > > > Connecting to i2.sinaimg.cn|61.172.207.61|:80... connected. > > > HTTP request sent, awaiting response... 200 OK > > > Length: 93,820 (92K) [image/jpeg] > > > > > On Oct 14, 9:53 pm, "[email protected]" > > > > > <[email protected]> wrote: > > > > My problem may not be the same. I got this only on actual G1 device, > > > > not on emulator. > > > > > > Also, if G1 is connect to my home WiFi network (comcast), the DNS for > > > > i0.sinaimg.cn is resolved without any problem. However, if I > > > > disconnect Wifi and use TMO USA 3G network, the DNS never resolves. > > > > > > On Oct 14, 9:29 pm, for android <[email protected]> wrote: > > > > > > >http://code.google.com/p/android/issues/detail?id=2764 > > > > > > > On Thu, Oct 15, 2009 at 4:40 AM, [email protected] < > > > > > > > [email protected]> wrote: > > > > > > > > Hello, > > > > > > > > This happens only when my G1 phone is on T-Mobile network: > > > > > > > > I found that when I try to go to the browser, and type the > address > > > > > > > > http://i0.sinaimg.cn/ > > > > > > > > The browser tries to load the page, but no progress is shown for > more > > > > > > than 2 minutes. > > > > > > > > (I have full 3G signal; all other addresses work just fine) > > > > > > > > Eventually when I tried to access this URL in my Java code, I > found a > > > > > > similar long delay when I try to open the HttpUrlConnection, and > > > > > > eventually I get thisexception: > > > > > > > > I/InetAddress( 1940):Unknownhosti0.sinaimg.cn, throwing > > > > > > UnknownHostException > > > > > > W/System.err( 1940): java.net.UnknownHostException:Hostis > > > > > > unresolved: i0.sinaimg.cn:80 > > > > > > W/System.err( 1940): at > java.net.Socket.connect(Socket.java:1002) > > > > > > > > Why would DNS take so long? Also, if my program tries to issue > the > > > > > > same HTTP request again, the same 2+ minute blocking happened. > > > > > > > > Is this an Android bug or a T-Mobile infrastructure bug? It seems > the > > > > > > Android API should try to time-out faster, especially on the > second > > > > > > attempt.- Hide quoted text - > > > > > > > - Show quoted text -- Hide quoted text - > > > > > > - Show quoted text -- Hide quoted text - > > > > > - Show quoted text - > > -- > You received this message because you are subscribed to the Google > Groups "Android Developers" group. > To post to this group, send email to [email protected] > To unsubscribe from this group, send email to > [email protected]<android-developers%[email protected]> > For more options, visit this group at > http://groups.google.com/group/android-developers?hl=en -- Warm regards, The PhoneMyPC Team -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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