Now I am not able to find a way to increase max no of connections per host in android...
Anurag On Jul 9, 3:34 pm, Anurag Singh <[email protected]> wrote: > Hi, > > I have an http client based on multi-threaded model of apache http > components in my App. And I want to achieve spontaneous cancellation > of http get requests from my Android app. > > A new executor thread is started for each http request and the Thread > and the HttpGet is saved in a thread safe queue. When abort is > requested (on pressing back on the progress dialog and when starting a > new activity) - another thread is started which goes through the queue > of Threads and HttpGet and attempts to terminate them (code below). > > While the HttpGet gets aborted successfully, the Threads go into > 'native' state. They only time out giving SocketTimeoutException after > a default interval. The threads end up this way on most cancellations. > Is this something to be expected or I am hitting a bug? > > The issue is that And as soon as 2 threads enter this state, all > further executor threads go into wait. Only when either of the 2 > blocked threads time out, other executors get a chance (this seems to > be the default behavior of http). I have have tried many different > thing but I am unable to budge the 'stuck' threads. > > I think the problem can be easily overcome by increasing the total no > of threads and threads per host -- but I am not sure if this will be a > correct thing to do (because the socket resources will stay occupied > till timeout and there is nothing theoretically that can stop a user > to do infinite cancellations)? Even if this is -- for Android, what > should be the number? > > Now I am also doubting if my abort strategy is flawed. Can anyone > please commentor let me know of a fool-proof abort strategy? > > - - - > > Run method of the abort thread is like: > public void run() { > while (!stopQueue.isEmpty()) { > final List<Object> stopRequest = > stopQueue.remove(); > HttpGet abortRequest = (HttpGet) > stopRequest.get(0); > Thread abortThread = (Thread) > stopRequest.get(1); > > // first abort the request > if (abortRequest != null && > !abortRequest.isAborted()) { > abortRequest.abort(); > Log.d("Aborting", > abortRequest.getURI().toString()); > } > > // if the thread is still stuck -- interrupt > it > if (abortThread != null && > abortThread.isAlive()) { > abortThread.interrupt(); > Log.d("Interrupting", > abortThread.getName()); > } > } > } > > Thanks > Anurag -- 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] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
