How can we check whether namenode is working or not?


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More Apache Hadoop Interview Questions

What is a heartbeat in HDFS?

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What is the communication channel between client and namenode/datanode?

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What is the best hardware configuration to run Hadoop?

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What is compute and Storage nodes?

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What happens to job tracker when namenode is down?

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Name the examples of some companies that are using hadoop structure?

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What is the difference between Apache Hadoop and RDBMS?

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Is hadoop obsolete?

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What is difference between secondary namenode, checkpoint namenode & backupnod secondary namenode, a poorly named component of hadoop?

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Explain the shuffle?

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How many instances of tasktracker run on a hadoop cluster?

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How to use Apache Zookeeper command line interface?

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