amazon web services - Aws SimpleDB, getting slow responce in android -


i using aws simpledb store data android app. using aws android sdk, getting late responce, there way improve it, in browser, getting data in 300 milliseconds me taking 5 10 seconds times more though sending request 40 rows only.

here doing.

 private threadpoolexecutor threadpool = new threadpoolexecutor(poolsize, maxpoolsize,  keepalivetime, timeunit.seconds, threadsqueue);  private void getarticles() {  string[] categories = {"kids", "boys", "girls",     "men", "women"};  for(final string category : categories) { runtask(new runnable() {    @override   public void run() {     log.e(tag, "getting articles category : " + category);     string select = "select * shopdatabase category = '" + category + "' , relationtype " +           "= 'none' , articlepushtime > '2013-04-01 05:46:03.719 gmt+00:00' , publishdatetime > '2013-04-01 05:46:03.719 gmt+00:00' " +           " , score > '0' order score  desc limit 40";   selectrequest selectrequest = new selectrequest(select);   selectrequest.setconsistentread(true);     list<item> articles = sdbclient.select(selectrequest).getitems();     if(articles != null) {       logger.log("error", "sqliteactivity", "articles size : " + articles.size() + " category : " + category, runcount);     } else {       logger.log("error", "sqliteactivity", "articles size : articles.size() = 0 or null category : " + category, runcount);      }      ondownload.ondownload();     }    });   } }

public void runtask(runnable task) { futures.add(threadpool.submit(task)); // threadpool.execute(task); }

i tried profile , found taking lot of time unmarshalling, , every request getting credentials.

log responce time:

 04-05 11:39:30.724: e/sqliteactivity(14448): getting articles category : kids  04-05 11:39:49.914: e/sqliteactivity(14448): articles size : 40 category : kids    04-05 11:39:30.754: e/sqliteactivity(14448): getting articles category : boys  04-05 11:39:47.644: e/sqliteactivity(14448): articles size : 40 category : boys    04-05 11:39:48.964: e/sqliteactivity(14448): getting articles category : girls  04-05 11:40:02.464: e/sqliteactivity(14448): articles size : 40 category : girls    04-05 11:39:49.924: e/sqliteactivity(14448): getting articles category : men  04-05 11:40:02.724: e/sqliteactivity(14448): articles size : 40 category : men    04-05 11:40:02.664: e/sqliteactivity(14448): getting articles category : women  04-05 11:40:10.024: e/sqliteactivity(14448): articles size : 40 category : women


Comments

Post a Comment

Popular posts from this blog

monitor web browser programmatically in Android? -

i've got tricky question here. need users make payment bank (namely barclaycard) in uk. so, have https url , add parameters (such amount pay, order reference, etc) url, start http connection intent.actionview, redirect user browser can enter credit card details on bank's webpage , make payment our account successfully. far ? the code use below (i changed values privacy reasons) problem is, need app when user has completed/failed/cancelled payment. barclaycardautomatically redirects particular url when payment has succeeded, 1 if failed. there no way of knowing when barclaycard payment has succeeded go android app somehow ? button cardbutton = (button) findviewbyid(r.id.card_button); cardbutton.setonclicklistener(new view.onclicklistener() { @override public void onclick(view arg0) { string prehashstring = new string(); string prohashstring = new string(); string shapassphrase = new string(); shapassphrase = "gsvth£h70zkh...
Read more

Shrink a YouTube video to responsive width -

i have youtube video embedded on our website , when shrink screen tablet or phone sizes stops shrinking @ around 560px in width. standard youtube videos or there can add code make go smaller? you can make youtube videos responsive css. wrap iframe in div class of "videowrapper" , apply following styles: .videowrapper { float: none; clear: both; width: 100%; position: relative; padding-bottom: 56.25%; padding-top: 25px; height: 0; } .videowrapper iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; } the .videowrapper div should inside responsive element. padding on .videowrapper necessary keep video collapsing. may have tweak numbers depending upon layout.
Read more

wpf - PdfWriter.GetInstance throws System.NullReferenceException -

i'm trying create pdf document using itextsharp 5.3.4 using following document document = new document(); filestream stm = new filestream(filename, filemode.create); pdfwriter writer = pdfwriter.getinstance(document, stm); i'm getting system.nullreferenceexception following stack trace: system.nullreferenceexception occurred hresult=-2147467261 message=la référence d'objet n'est pas définie à une instance d'un objet. source=itextsharp stacktrace: à itextsharp.text.version.getinstance() innerexception: i've verified neither document nor stm null, , if select "continue" in vs12 document created - exception thrown. updated itextsharp 5.4.0 , it's still occurring. can't find information on anywhere - got ideas? make sure not catching exceptions. nullreferenceexception can 1 caught , handled inside itextsharp, don't care it. fact can continue supports theory. change following setting verify: debug -> exceptions ...
Read more