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HDFS is a file system that is designed for use for MapReduce jobs that read input in large chunks of input, process it, and write potentially large chunks of output. HDFS does not handle random access particularly well. For reliability, file data is simply mirrored to multiple storage nodes. This is referred to as replication in the Hadoop community. As long as at least one replica of a data chunk is available, the consumer of that data will not know of storage server failures.
HDFS services are provided by two processes:
NameNode handles management of the file system metadata, and provides management and control services.
DataNode provides block storage and retrieval services.
There will be one NameNode process in an HDFS file system, and this is a single point of failure. Hadoop Core provides recovery and automatic backup of the NameNode, but no hot failover services. There will be multiple DataNode processes within the cluster, with typically one DataNode process per storage node in a cluster.
Big Data Training for 5-days at Mumbai on 15th June' 2013 - 19th June 2013 - Training will begin promptly at 10:00am and conclude at 5:00pm
Extensively a practical oriented training
Key Features :
Course Completion Certificate + BigData Associate Certificate - unique verification code
* Practice on production level Cloud Servers
* Primary focus - hands-on sessions
* Real time Task Assignment - POC / our Big Data Analytics Platform
For : developers, architects, data analysts & scientists, startups, CIOs and IT professionals.
Register now !
+91-9789968765, 044-42645495
www.bigdatatraining.in
[email protected]
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Special discounts for Early bird registration
Group discounts available
Course Outline:
What is Big Data & Why Hadoop?
Hadoop Overview & it’s Ecosystem
HDFS – Hadoop Distributed File System
Map Reduce Anatomy
Developing Map Reduce Programs
Advanced Map Reduce Concepts
Advanced Map Reduce Algorithms
Advanced Tips & Techniques
Monitoring & Management of Hadoop
Using Hive & Pig ( Advanced )
HBase
NoSQL
Sqoop
Deploying Hadoop on Cloud
http://www.hadooptrainingindia.in/bigdata-hadoop-tr
aining-mumbai/
http://www.bigdatatraining.in/events/hadoo
p-bigdata-training-mumbai/
Register now !
+91-9789968765, 044-42645495
www.bigdatatraining.in
[email protected]
n