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Saturday 5 January 2013
Visualization Tool for HDFS blocks/chunks
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From the time I started working on hadoop, I always felt the need of a tool to visualize the blocks of a HDFS file/directory. Unfortunately...
7 comments:
How to find the blocks/chunks of a file in HDFS?
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We know that HDFS stores a file by splitting it in multiples blocks or chunks based on the configured block size property. The blocks of a ...
46 comments:
Sunday 30 December 2012
Installing and configuring Ganglia on RHEL
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Recently I installed and configured Ganglia to monitor the hadoop cluster, here are the details to install and setup the Ganglia Monitoring...
1 comment:
Sunday 9 September 2012
Liferay Multiple Instance Portlets - How to display different contents
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Liferay Portal server provides the mechanism to create the multiple instances of a portlet. Its a common requirement to display different c...
2 comments:
Writing an Ajax Portlet using Liferay
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In this blog, I walk-through the steps to create a simple Ajax Portlet using Liferay Portal server. If you have not installed the Liferay s...
2 comments:
Saturday 11 August 2012
Performance Tip - Select only required columns from HBase
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HBase is column-oriented database and allows you to select only the required columns or columns family using Scan objects. For a query on ...
How to calculate the Compression in HBase?
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The compression in HBase can really reduce the storage requirements, as the row-key, column-family and the column names repeat for each col...
23 comments:
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