Develop Reference

Empty Output file after doing the mapreduce (hadoop)

Hi so I got this problem that happened when I tried to use a jar on hadoop. But my Output folder is empty and I got this error message. I was wondering how can I fix this problem ? I saw some post on stack that said that I needed to change a property to this one -> mapreduce.map.failures.maxpercent. But I can't find where it's located I tried to see in mapred-site.xml but there is no line similar to this one. Also I am not really sure if this line would fix anything.

From the screenshot, it is evident that the job failed. The map task has failed (Failedmap tasks=4). Check additional logs to correct the issue with the code.
A folder with the same application ID will be created in the logs/userlogs of your Hadoop installation directory. For example:
HADOOP_INSTALLATION_DIR/logs/userlogs/application_xxxxxxxxxxxxxxx_xxxx
You can check the syslog and sysout messages.

IllegalArgumentException when running app. (Android)

When running my project, I get this error.
Error:java.lang.IllegalArgumentException: Invalid resource path: C:\Android\Source Code and Samples\turbo-editor-master\turbo-editor-master\app\src\main\res
Any idea what is causing this?
I am using source code from the Turbo Editor app and have done no changes to the app prior to running it.

Try two things:
- Clean your project. This helps most of the times
- Go to the directory mentioned in the Exception. Make sure it actually exists.

I found the error. While looking at the error, follow the path that it is referring to. If there is no path like that, or a file missing, then create it and move the file to that path. Should fix the problem.

Illegal argument exception is throwed when a function gets wrong (it cannot reasonably deal with it) argument. This can be caused by, for example, missing function that was somewhere overrided. In your case - maybe this is issue with path? I'm not sure but if the path exists you can try changing it so it does not have "spaces" and capital letters. Please dump complete log with error.

processing for android: AssetManager and list() not working

I've been developing for android using processing but have come to a halt when I wanted to retrieve a list of files within a given directory. Below is a screenshot of the code I have been trying.
I have tried different variations of this (such as getbaseContext().getAssets();) and nothing seems to work. Whenever the code tries to execute the list() part it has an error and there is nothing in 'fileNames'.
Am I missing anything? Is this a problem with processing?
Thanks
EDIT: The direction I am trying to access is "assets/Levels/" which I can see from my project view in eclipse.

I experienced a similar issue because I used folder names with a trailing / character.
So for others experiencing this issue, you need to make sure the folder name you use are just the folder name with no trailing / (so "movies" instead of "movies/")

You do not need any additional permissions in order to run the code that you have. I just compiled it on my device and it works fine. You mention you are attempting to list the files in a given directory. What you are doing is listing the files in the Levels folder, which should be a sub folder of assets. What you will get back is an array of all file names in that folder.
If you are actually looking to get a list of files from a given directory, it has nothing to do with the assets folder and I suggest you check out a tutorial on Android external and internal storage. The information directly on the android page was very helpful to me.
http://developer.android.com/guide/topics/data/data-storage.html
If that's not what you are looking for though, I suggest rewording your question.

So I got it to work!
Turns out it was a problem with where I was placing the 'String[] fileNames;' code before trying to put data into it. The below code works fine:
Thanks for the help!

*Note : Individual folder should not empty.. It will return zero for folder with no files. *
void getFolderDetais(String folder_name)
{
// pass folder_name empty to get detail of root that means assets folder details
String[] filelistInSubfolder = assetManager.list(folder_name);
Log.v("Floder Details ----- >", " Length --- "
+ filelistInSubfolder.length);
}

An issue when trying to launch and deploy Jetty

I have an issue whenever I am trying to deploy Jetty on a specific machine (works with others), the machine is a non-English Windows machine.
[2013-02-15 04:14:05.894] [ERROR] Thread-39
System.err
java.lang.IllegalStateException: Cannot create tmp dir in
C:\Windows\system32\config\systemprofile\AppData\Local\Temp\ for
context o.e.j.w.WebAppContext{/spdy,null},C:\Program
Files\server\work\tmp\my-app\webapps\spdy.war
[2013-02-15 04:14:05.894] [ERROR] Thread-39
System.err
java.io.IOException: Žw’肳‚ꂽƒpƒX‚ªŒ©‚‚©‚è‚Ü‚¹‚ñB
I tried to see if this is an issue related to admin rights but it is not, I am launching the process with admin rights.
Any suggestions are really appreciated.
Thanks!

Was able to find the issue out. Jetty does not create the TEMP folder if it doesn't exist so you have to check yourself and create the temp folder if it is not there.
In this instance, it ended up being that:
C:\Windows\system32\config\systemprofile\AppData\Local\Temp\ does not exist although C:\Windows\system32\config\systemprofile\AppData\Local\ does and TEMP=C:\Windows\system32\config\systemprofile\AppData\Local\Temp\
Creating "Temp" directory in C:\Windows\system32\config\systemprofile\AppData\Local\ solved the issue!

This is pretty old post, but recently I had just the same problem, so I want to share my experience too.
Parts of the code causing the problem can be found here:
http://download.eclipse.org/jetty/stable-8/xref/org/eclipse/jetty/webapp/WebInfConfiguration.html#225, resolveTempDirectory (WebAppContext context) method (check last lines of the method, third case explained in the comments). So, another workaround for the problem can be also changing default java.io.tmpdir folder to point to an existing one.
I have already checked on some systems and C:\Windows\system32\config\systemprofile\AppData\Local\Temp folder doesn't exist on Windows: 7, 2008, 2012.

svnkit: how to get working copy revision number?

I am using SVNKit 1.3.2 and trying to obtain working copy revision number.
Working copy is checkouted also with SVNKit, but when I'm trying to call
clientManager.getLookClient().doGetYoungestRevision(destination);
I got FileNotFoundException telling me that 'format' file is not found under destination path, ex /path/to/working/copy/format
I can see 2 troubles:
- It tries to access 'format' file right in working directory root, while this file supposed to be in .svn folder
There is not file in this .svn folder.
Any clues? Thank you!

Seems to be it should be done through SVNStatusClient:
clientManager.getStatusClient().doStatus(destination, false).getRevision().getNumber();
Though still don't understand what's the problem with doGetYoungestRevision(destination)...

It is not working because doGetYoungestRevision is for a repository, not for a working copy.
I was hoping to achieve the same things as you, and found out that when destination is pointing to a repository, it returns the last revision number of the repository.
The class in itself is for working with repository, you can look at the documentation here.