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  • Having two sets of input combined on hadoop

    - by aeolist
    I have a rather simple hadoop question which i'll try to present with an example say you have a list of strings and a large file and you want each mapper to process a piece of the file and one of the strings in a grep like program. how are you supposed to do that? I am under the impression that the number of mappers is a result of the inputsplits produced. I could run subsequent jobs, one for each string, but it seems kinda... messy?

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  • Connecting to network device behind NAT from local LAN using the external port and IP

    - by lumbric
    I noticed at several different LANs connected to the Internet through a NAT the following phenomena. There is a server in the LAN and there is a port forwarding to reach this server also from outside the LAN through the NAT. E.g. consider a LAN with the address 192.168.0.* and a SSH server at 192.168.0.2 with port 22 and a forwarding from port 2222 at the NAT 192.168.0.1 to 192.168.0.2:22. If the NAT's external IP is 44.33.22.11, one can connect to the SSH server through 44.33.22.11:2222. Surprisingly this works only from outside the LAN. If one tries to connect to 44.33.22.11:2222 from behind the NAT, there is no answer. Of course one could simply use 192.168.0.2:22, but often it is simpler to use the external IP. The typical use case for me is the configuration on a laptop computer. Usually the user uses any arbitrary Internet connection to connect to his home or office server, but sometimes he will use also the LAN to connect to it and it would be annoying to have to different configurations or bookmarks. Why does it fail to connect from inside the LAN? Is there any good work around?

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  • Open fancyBox manually with thumbnail helpers

    - by loru88
    I want to make a gallery with only one preview picture and thumbnails helper. I have used the snippet provided by the author for the gallery with only one preview picture and then I added the code for show the thumbnails helper, in this way, but it doesn't show the thumbnails.... I suppose because when you open fancybox manually you don't specify where are the thumbnails, how could it be resolved?

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  • richfield problem

    - by jutt.chattha
    0 i am get the from the web and store in the rich text field but only one line show other all data is hidden if i hard coded show the all data but when we get the data base through web show only one line. the code reff is private RichTextField textOutputField; textOutputField.insert(""+GlobalDataStore.chatee+":" + bufVal+"\n");

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  • Can I user a layout on the android to render just part of an image at a time?

    - by gamernb
    I have an image file that has all the character sprites that I will be using in a game, and I want to make a layout that will allow the user to cycle through each image to be able to pick which one they want. So, I have one large image, and I need to render just a small (32 x 32) section of it at a time. Is that possible with the layouts or will I have to use a canvas, and manually do most of this?

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  • Are comonads a good fit for modeling the Wumpus world?

    - by Tim Stewart
    I'm trying to find some practical applications of a comonad and I thought I'd try to see if I could represent the classical Wumpus world as a comonad. I'd like to use this code to allow the Wumpus to move left and right through the world and clean up dirty tiles and avoid pits. It seems that the only comonad function that's useful is extract (to get the current tile) and that moving around and cleaning tiles would not use be able to make use of extend or duplicate. I'm not sure comonads are a good fit but I've seen a talk (Dominic Orchard: A Notation for Comonads) where comonads were used to model a cursor in a two-dimensional matrix. If a comonad is a good way of representing the Wumpus world, could you please show where my code is wrong? If it's wrong, could you please suggest a simple application of comonads? module Wumpus where -- Incomplete model of a world inhabited by a Wumpus who likes a nice -- tidy world but does not like falling in pits. import Control.Comonad -- The Wumpus world is made up of tiles that can be in one of three -- states. data Tile = Clean | Dirty | Pit deriving (Show, Eq) -- The Wumpus world is a one dimensional array partitioned into three -- values: the tiles to the left of the Wumpus, the tile occupied by -- the Wumpus, and the tiles to the right of the Wumpus. data World a = World [a] a [a] deriving (Show, Eq) -- Applies a function to every tile in the world instance Functor World where fmap f (World as b cs) = World (fmap f as) (f b) (fmap f cs) -- The Wumpus world is a Comonad instance Comonad World where -- get the part of the world the Wumpus currently occupies extract (World _ b _) = b -- not sure what this means in the Wumpus world. This type checks -- but does not make sense to me. extend f w@(World as b cs) = World (map world as) (f w) (map world cs) where world v = f (World [] v []) -- returns a world in which the Wumpus has either 1) moved one tile to -- the left or 2) stayed in the same place if the Wumpus could not move -- to the left. moveLeft :: World a -> World a moveLeft w@(World [] _ _) = w moveLeft (World as b cs) = World (init as) (last as) (b:cs) -- returns a world in which the Wumpus has either 1) moved one tile to -- the right or 2) stayed in the same place if the Wumpus could not move -- to the right. moveRight :: World a -> World a moveRight w@(World _ _ []) = w moveRight (World as b cs) = World (as ++ [b]) (head cs) (tail cs) initWorld = World [Dirty, Clean, Dirty] Dirty [Clean, Dirty, Pit] -- cleans the current tile cleanTile :: Tile -> Tile cleanTile Dirty = Clean cleanTile t = t Thanks!

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  • Help in recovering partition

    - by goshopedero
    Okay so i had one NTFS partition and i wanted to resize it, but while resizing it with partition magic some error occurred and now i am not able to enter in my partition anymore. I have slackware 13 also and i tried mounting the partition from there but it didn't succeed. One friend of mine came to my house with some live-cd os called backtrack3 and when he booted from cd, he was able to mount the damaged partition - and was able to read/write on it anywhere. I saw my files, they are all there, so nothing's erased just the partition is somehow damaged. But strange thing was that from backtrack we weren't able to mount some of the working partitions of my comp, and we could mount the damaged one. So i am asking for some help here: My files are all there, and i saw them from backtrack. What can i do to fix the partition so it would be usable from windows/slackware again ? Please tell me anything you've got because i have some important data on it. Thank you.

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  • how to configure word press blog to save uploaded images to a certain dir. ?

    - by kacalapy
    i have a word press blog installed on my server but when i upload a image it goes into one directory, but the blog front end is lookign for the images in another directory... so the images show as broken. i have been manualy copying the uploaded images from server location to the one WP looks for them in and it works. how can i set the WP blog to upload to the same dir on the filesystem that the WP front end is trying to pull from?

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  • need explanation about bookmarking

    - by Sachindra
    I got stumbled upon this issue once and I guess I need some expertise in getting through this .." some links that one likes to bookmark ." I tried browsing and got confused. is bookmarking just means the use of CTRL + D. Or is ti something like the one in this link .

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  • Which work process in my company should I Improve first?

    - by shoren
    I've just started to work in a new place, and I see several things they do that I find really terrible, and I want to know if they are indeed so wrong, or I am just too strict. Please let me know if my criticism is in place, and your opinion on which problem is the worst and should be fixed first. The developement is all in Java. 1) Not using svnignore. This means svn stat can't be used, and developers forget to add files and break the build. 2) Generated files go to same folders as committed files. Can't use simple maven clean, have to find them one by one. Maven clean doesn't remove all of them. 3) Not fixing IDE analyze warnings. Analyze code returns about 5,000 warning, of many different kinds. 4) Not following conventions: spring beans names sometimes start with uppercase and sometimes not, ant properties sometimes with underline and sometimes with dots delimiter, etc. 5) Incremental build takes 6 minutes, even when nothing is changed. 6) Developers only use remote debug, and don't know how to run the Tomcat server internally from the IDE. 7) Developers always restart the server after every compilation, instead of dynamically reloading the class and saving the server's state. It takes them at least 10 minutes to start checking any change in the code. 8) Developers only compile from command line. When there are compilation errors, they manually open the file and go the the problematic line. 9) A complete mess in project dependencies. Over 200 open sources are depended on, and no one knows what is indeed needed and why. They do know that not all dependencies are necessary. 10) Mixing Maven and Ant in a way that disables the benefits of both. In one case, even dependency checks are not done by Maven. 11) Not using generics properly. 12) Developers don't use Subversion integration with IDE (Eclipse, Intellij Idea). What do you think? Where should I start? Is any of the things I mentioned not really a problem?

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  • Weird Outlook Behavior; Creating its own file folder

    - by Carol Caref
    Outlook is doing a very strange thing. It has created a folder on its own (which, whenever I completely delete, comes back, with a different name). Mail that goes into this folder will not go to any other folder unless I forward it. If I move the email or create a rule to always move mail from particular senders to the Inbox, it moves for a while, but then goes back into the created folder. The first one was called "junk" but it was in addition to my normal junk email folder. When I forwarded all the messages (some were junk, but most were not) and totally deleted that folder, a new one, called "unwanted" appeared that acted the same way. It seems that once one email goes into this folder, then any email from that person also goes into the folder. I have discussed this with the tech person at work. There is no evidence of virus or any other identifiable reason for this to happen. We have searched the Internet and not found anything like this either.

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  • How to use menu bars with different patterns?

    - by vahini
    I'm using Visual studio 2005, ASP.NET and C#. I want to use menu bars which have an active look to them when their respective target page is the one currently showing. Imagine a user clicks a menu item, navigation to the target page occurs and the menu item they selected is now differing, in say, color to that of the other items in the menu as a means to indicate this is the currently active location. How might one achieve this?

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  • Grunt: Bower for development and CDN for production - is it possible?

    - by EricC
    For development, I guess it is fine to use a plugin like https://github.com/stephenplusplus/grunt-wiredep But for production I would like to use CDN where such exists. Does it exist a Grunt plugin that goes through the bower.json file and replaces this with a CDN-link from the most popular ones (and if a component is present in more than one CDN, then pick one based on rank-setting or random or something).

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  • Change TabBarController in detail view

    - by Antriel
    So I have a TabBarController with 2 views. One of the views is a TableView in navigationController. When user selects a row I push a detail view there. I want this detail view to have its own TabBarController different from the former one. So basically the question is if I can push a view on top different view with different TabBarController, but using navigationController not as a modal view.

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  • What is the correct way to create a single instance application?

    - by Nidonocu
    Using C# and WPF under .net (rather than WindowsForms or console), what is the correct way to create an application that can only be run as a single instance? I know it has something to do with some mythical thing called a mutex, rarely can I find someone that bothers to stop and explain what one of these are. The code needs to also inform the already running instance that the user tried to start a second one, and maybe also pass any command line arguments if any existed.

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  • Is there a way to close a Unix socket for only reading or writing?

    - by Sii
    Is there a way to only close "one end" of a TCP socket to cleanly indicate one side of a connection is done writing to the connection? (Just like you do with a pipe in every Unix pipe tutorial ever.) Or should I use some in-band solution like a sentinel value or some such? I only found shutdown() in the libc documentation and that doesn't seem like it does what I want.

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  • Repeating a object that only occurs couple of times and has different values with htmlagilitypack c#.

    - by dtd
    I have a problem I cant seem to solve here. Lets say I have some html like beneth here that I want to parse. All this html is within one list on the page. And the names repeat themself like in the example I wrote. <li class = "seperator"> a date </li> <li class = "lol"> some text </li> <li class = "lol"> some text </li> <li class = "lol"> some text </li> <li class = "seperator"> a new date </li> <li class = "lol"> some text </li> <li class = "seperator"> a nother new date </li> <li class = "lol"> some text </li> <li class = "lol"> some text </li> I did manage to use htmlagility pack to parse every li object seperate, and almost formating it how I want. My print atm looks something like this: "a date" "some text" "some text" "some text" "some text" "a new date" "some text" "a nother new date " "some text" "some text" "some text" What I want to achive: "a date" "some text" "a date" "some text" "a date" "some text" "a date" "some text" "a new date" "some text" "a nother new date " "some text" "a nother new date " "some text" "a nother new date " "some text" But the problem is that beneath every seperator, the count of every lol object may vary. So one day, the webpage may have one lol object beneth date 1, and the next day it may have 10 lol objects. So I am woundering if there is an smart/easy way to somehow count the number of lol objects in between the seperators. Or if there is another way to figure this out? Within for example htmlagilitypack. And yes, I need the correct date in front of every lol object, not just infront the first one. This would have been a pice of cake if the seperator class would have ended beneath the last lol object, but sadly that is not the case... I dont think that I need to paste my code here, but basicly what I do is to parse the page, extract the seperators and lol objects and add them to a list, where I split them up to seperator and lol objects. Then I print it out to a file and since the seperator only occure 3 times(in the example) I will only get out 3 seperate dates.

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  • static wsdl for a certain end point

    - by Costa
    Hi A certain EndPoint in a web service is not likely to change a lot, also it had a problem which we worked around by putting a static wsdl to the whole web service like this <serviceMetadata httpGetEnabled="true" httpGetUrl="" externalMetadataLocation="http://IP:8250/wsdl.xml"/> Now I want the rest of end points to have a wsdl dynamically created, and one end point which require a static WSDL. I think this is impossible because there is one WSDL per WCF service.

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  • Javascript: 'this' changes when assigning a property?

    - by Pickels
    I know 'this' can be a problem when you don't understand Javascript well but this one got me a little puzzled. var ControlTypes = { TextBox: function () { console.log(this); this.Name = "TextBox"; console.log(this); } } ControlTypes.TextBox(); Firebug gives the following result: Object {} Object { Name="TextBox"} The first object is ControlTypes and the second one is Textbox. Could anybody explain the behavior behind this?

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  • Android ListView in Activity

    - by Dev.Android
    My layout is like this Title Layout Listview BottomLayout. I have an 150 item which i have custom layout which i want to add in listview. So my main problem is i want to add slowly slowly one by one that customlayouts in listview. So whenever the first screen is displayed i want load 10 items from server and add it to listview.then onscroll down i want to load the remaining 10 items from 150 cutom layouts. So how can I do this activity?

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