February 14, 2011 1:56 AM
Posted by: Sasirekha R
Cluster,
IBM,
Mainframe,
Scalability,
zOSMainframe Clustering
Mainframe has three major clustering techniques: Basic Shared DASD, CTC rings, and Parallel Sysplex. Parallel Sysplex - is analogous in concept to a UNIX cluster - allow the customer to operate multiple copies of the operating system as a single system. This...
December 1, 2010 12:34 AM
Posted by: Sasirekha R
Apache,
Big Data,
Cloud,
Hadoop,
IBM,
ScalabilityHadoop Database for Big Data - Part III
For insert-only (in most cases at least) situations, involving crawling and indexing (both in the web and in Enterprises), blogs/wikis, facebook-like applications, search based retrieval (as against query based), batch-oriented or...
December 1, 2010 12:29 AM
Posted by: Sasirekha R
Apache,
Big Data,
Hadoop,
NoSQL,
open source,
ScalabilityHadoop Database for Big Data - Part II
HBase
HBase uses a data model similar to that of Google's Bigtable. Data is logically organized into tables, rows and columns. A data row has a sortable row key and an arbitrary number of columns....
November 15, 2010 3:23 AM
Posted by: Sasirekha R
cache,
Cloud,
Elastic Caching Platform,
eXtreme Scale,
Forrester,
grid,
IBM,
latency,
NoSQL,
Scalability,
shardUnderstanding Elastic Caching Plaftorms - IBM eXtreme Scale
Data Caching is a standard technique used for improving application performance. Local caching, though the fastest, is not able to scale and caching multiple copies of the...
November 3, 2010 3:01 AM
Posted by: Sasirekha R
graph database,
Lucene,
Neo4j,
NoSQL,
Scalability,
traversalNeo4j, the Graph Database - for high performance traversals
Currently there are many areas - the Semantic web movement (of W3C), content management, bioinformatics, artificial intelligence, social networks, business intelligence...
October 4, 2010 5:05 AM
Posted by: Sasirekha R
Consistency,
distributed data storage,
Eventual Consistency,
fault tolerant,
integrity,
NoSQL,
Replication,
ScalabilityData Replication - the key to distributed applications
Data Replication, copying of data in databases to multiple locations, is an essential tool to support distributed applications (where the applications are closer to the line of business)....
October 4, 2010 4:57 AM
Posted by: Sasirekha R
BASE,
CAP Theorem,
Eventual Consistency,
High Availability,
NoSQL,
Read-your-writes,
ScalabilityEventual consistency gives scalability and availability
Success of high-volume web sites such as Google, Amazon, Twitter and Facebook in using NoSQL to achieve massive parallelism, unlimited scalability and high availability has...
September 24, 2010 6:10 AM
Posted by: Sasirekha R
Consistent Hashing,
DHT,
distributed data storage,
Google,
Hash table,
MapReduce,
Scalability,
ShardingDatabase Sharding - Horizontal Partitioning for massive scalability
Database Sharding (made popular by Google) is a method of horizontal partitioning in a database and the approach is highly scalable and provides improved throughput and...
