hadoop - About online distributed environment -


i learning mapreduce , hadoop now. know can tests , run samples on singe node. want practice on real distributed environment. want ask : there website can offer distributed environment me experiments?

somebody told me can use amazon web service build distributed environment. real? have such experience?

and want know how guys learn hadoop before use in work?

thank you!

there few options:

  • if want learn map/reduce paradigm, recommend take @ jsmapreduce. embedded directly in browser, have nothing install, , can create real map/reduce programs.
  • if want learn hadoop specifically, amazon has thing called elastic map reduce hadoop running on aws, enables write hadoop job, decide how many machines want in cluster, type of machines want, , run it, , emr everything, bootstrap machines you, run job , store results on s3. recommend looking @ this tutorial idea how setup job on emr. remember, emr not free, you'll have pay computing resources.

alternatively if you're not looking pay cost of emr, setup hadoop on local machine in non-distributed mode, , experiment it, described here. if it's single node setup, abstractions same if using big cluster, it's way speed , go on emr or real cluster when want serious.


Comments

Post a Comment

Popular posts from this blog

blackberry 10 - how to add multiple markers on the google map just by url? -

i have android application, want convert blackberry 10 , google map needed in app,but blackberry 10 not support googlemap , blackberry developer web site supply way replace it.the sample below: @override public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.main); webview webview = (webview) findviewbyid(r.id.mywebview); webview.getsettings().setjavascriptenabled(true); webview.loadurl("http://maps.google.com/?ll=36.97, -122&lci=bike&z=13&t=p"); } i cannot understand it,i not know how add multiple markers on googlemap via url? can me? this worked me map shown in webview.
Read more

php - guestbook returning database data to flash -

i've been struggling problem long , unable make work, hope can me it. first, know php files correct , mysql database works fine. in flash, able submit comment database comments not display. did many tests such making returned_database flash separately , worked fine - can see old comments. long combine submitting 1 , returning 1 together, flash doesn't show comments more. put lower version flash effects on frame thinking doesn't collaborate returning flash, submitting flash works fine. since pretty complex problem hard me copy actionscript code because on different frames in flash. if has ideas fixing maybe can send file you?
Read more

delphi - Dynamic file type icon -

i want register file type in windows , make program delphi draw icon of file according contents (something custom icon format). how can this? thanks nortd , user539484 comments, searched internet "shell icon handler delphi" , found sample here , , shell+ components has component this.
Read more