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Answered on 20 Aug Learn Hadoop

Vivek Joglekar

Wroking in IT industry from last 15 years and and trained more than 5000+ Students. Conact ME

Install Hadoop in pseudo-distributed mode on your laptop for learning. Use Docker for easier setup.
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Answered on 16 Aug Learn Hadoop

Sadiq

C language Faculty (online Classes )

Earning a Hadoop Certification is a great way to finesse your Hadoop skills and break into the field of big data. Having a credible Hadoop certification eases the process, to get an entry-level Hadoop job for gaining experience and advancing one's big data career
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Answered on 20 Aug Learn Hadoop

Vivek Joglekar

Wroking in IT industry from last 15 years and and trained more than 5000+ Students. Conact ME

HDFS is for scalable storage of large files; HBase is a NoSQL database for real-time, random access to data.
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Answered on 14 Aug Learn Hadoop

Sana Begum

My teaching experience 12 years

The main components of a Hadoop application are: 1. *Input*: - Data sources (e.g., files, databases, streams) - Data ingestion tools (e.g., Flume, Sqoop) 2. *Storage*: - HDFS (Hadoop Distributed File System) for storing data - HBase (optional) for NoSQL database capabilities 3.... read more
The main components of a Hadoop application are: 1. *Input*: - Data sources (e.g., files, databases, streams) - Data ingestion tools (e.g., Flume, Sqoop) 2. *Storage*: - HDFS (Hadoop Distributed File System) for storing data - HBase (optional) for NoSQL database capabilities 3. *Processing*: - MapReduce (MR) for batch processing and data transformation - Apache Spark (optional) for in-memory processing and machine learning - Apache Flink (optional) for stream processing 4. *Processing Framework*: - YARN (Yet Another Resource Negotiator) for resource management and job scheduling 5. *Data Processing Tools*: - Pig for high-level data processing and analysis - Hive for data warehousing and SQL-like queries 6. *Output*: - Data output formats (e.g., CSV, JSON, Avro) - Data output destinations (e.g., HDFS, HBase, external databases) 7. *Security and Governance*: - Authentication and authorization mechanisms (e.g., Kerberos, LDAP) - Data encryption and access control 8. *Monitoring and Maintenance*: - Monitoring tools (e.g., Ambari, Cloudera Manager) - Logging and debugging mechanisms These components work together to form a comprehensive Hadoop application, enabling scalable, flexible, and efficient data processing and analysis. read less
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Answered on 20 Aug Learn Hadoop

Vivek Joglekar

Wroking in IT industry from last 15 years and and trained more than 5000+ Students. Conact ME

Yes, Apache Spark is generally faster than Hadoop MapReduce due to its in-memory processing.
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Answered on 20 Aug Learn Hadoop

Vivek Joglekar

Wroking in IT industry from last 15 years and and trained more than 5000+ Students. Conact ME

No, Hadoop won't replace ETL but can complement it by handling large-scale data processing efficiently.
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Answered on 20 Aug Learn Hadoop

Vivek Joglekar

Wroking in IT industry from last 15 years and and trained more than 5000+ Students. Conact ME

A distributed cache in Hadoop stores files across nodes, making them available to MapReduce tasks for faster access.
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Answered on 20 Aug Learn Hadoop

Vivek Joglekar

Wroking in IT industry from last 15 years and and trained more than 5000+ Students. Conact ME

Hadoop's pain points include complex setup, slow MapReduce jobs, high resource consumption, and steep learning curve.
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Answered on 20 Aug Learn Hadoop

Vivek Joglekar

Wroking in IT industry from last 15 years and and trained more than 5000+ Students. Conact ME

Spark excels in real-time and iterative processing; Hadoop is better for batch processing and large-scale data storage.
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Answered on 20 Aug Learn Hadoop

Vivek Joglekar

Wroking in IT industry from last 15 years and and trained more than 5000+ Students. Conact ME

Rack Awareness in Hadoop optimizes data locality by placing replicas based on rack locations to minimize data transfer.
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