Explain how can you debug hadoop code?

462

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Explain how can you check whether namenode is working beside using the jps command?

428

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Explain what is webdav in hadoop?

508

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Mention what job does the conf class do?

420

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For using hadoop list the network requirements?

471

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Explain deletion in hbase? Mention what are the three types of tombstone markers in hbase?

141

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What are the main key structures of hbase?

167

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What is the use of hbase hmaster?

149

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Which technique can you use in hbase to access hfile directly without the help of hbase?

173

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Explain what is wal and hlog in hbase?

312

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How many operational commands in hbase?

167

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why use hcolumndescriptor class?

153

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What is the row key?

157

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Tell me about the types of hbase operations?

175

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How does hbase actually delete a row?

192

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