What type of data we should put in distributed cache? When to put the data in dc? How much volume we should put in?
237Post New Hadoop General Questions
Why slaves limited to 4000 in hadoop version 1?
If the hadoop administrator needs to make a change, which configuration file does he need to change?
Mention what are the most common input formats defined in hadoop?
Why is checkpointing important in hadoop?
Comparison between Secondary NameNode and Checkpoint Node in Hadoop?
What are the hadoop configuration files at present?
What are configuration files in Hadoop?
Why Hadoop performs replication, although it results in data redundancy?
Mention what job does the conf class do?
How Hadoop is cost-effective?
After the Map phase finishes, the Hadoop framework does 'Partitioning, Shuffle and sort'. Explain what happens in this phase?
How to create a user in Hadoop?
Is hadoop still in demand?
What is the default replication factor and how will you change it?
What are the core methods of a Reducer?