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New version 0.5 of AWS4C released

Here we go again, another version of AWS4C

The new release includes support for S3 delete operation. Check the API Reference and example code in s3_delete.c for details.

The library could be downloaded from here

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Port of RXTX library to Android platform

Just ported a google RXTX library to the Android platform.    Check out the picture below, it shows the Motorola Droid phone talking to the FreeNAS device over the serial port.

 

Testing android with serial



 

More information and binaries are here http://v-lad.org/projects/gnu.io.android/.   The source code of port is here  https://github.com/vladistan/gnu.io.android/ .

If you have any questions, comments or support request post them below.

 

 

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Slides from Sep 20 Cloud Computing Development Talk

Slides from the talk I gave at UMBC are here. They cover Cloud Computing Development in general and Amazon Web Services in detail.

Feel free to comment.

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Compiling native programs for Android

There is an excellent tutorial by Nirnimesh on how to compile native programs for Android here http://android-tricks.blogspot.com/2009/02/hello-world-c-program-on-using-android.html

Unfortunately things have changed a bit since last year when this post was written. Andy’s agcc script doesn’t work with the most recent Google NDK release 4B.

I have changed the script a little bit to address new path changes. The new script is available here http://android-cruft.googlecode.com/files/agcc-0.2.tgz.

Make sure to add this to your path

$HOME/AndroidNDK/build/prebuilt/linux-x86/arm-eabi-4.4.0/bin/

where AndroidNDK is your NDK installation directory.

Hope this works for you.

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AWS4C has been updated

Thanks to Henry N. for sending patches to the AWS4C library. I applied and tested them, hence the new release of the library.

Here is the list of changes:

  • The code quality has been improved. Some memory leaks fixed. Also addressed some warnings given by GCC 4.1.2
  • Addressed a bug with having wrong file length after get
  • When debug is not set, don’t print verbose output to stdout
  • Fixed up EU and virtual host URLS
  • Now can set the mime-type for the items
  • Now can attach canned ACL to the items

The library is available at http://code.google.com/p/aws4c/

Have any questions or suggestions write to me ‘tutorials@v-lad.org’ or post your comment here.

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Excellent hadoop ports and filenames reference

There is an excellent hadoop port numbers reference posted by the Cloudera people http://www.cloudera.com/blog/2009/08/14/hadoop-default-ports-quick-reference/.

Hadoop uses a lot of ports to communicate between the nodes and to provide the UI. The quick reference guide make it easier to keep track of what is going on.

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Hadoop tutorial for Windows and Eclipse.

Just posted a tutorial on how to configure hadoop environment for Windows using CYGWIN. The tutorial explains how to set-up a hadoop cluster in the pseudo distributed mode and how to get it working with the Eclipse.

If you have any questions / comments / suggestions about this tutorial post them here.

The tutorial is located here.

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