Answer / Manish Chandra Yadav

Data or files are written into Hadoop HDFS using the command 'hadoop fs -put' followed by the source file path and destination HDFS path. For example: hadoop fs -put /local/input /user/username/output

If the source data gets updated every now and then, how will you synchronize the data in hdfs that is imported by sqoop?

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How data or file is written into Hadoop HDFS?

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Explain the hdfs architecture and list the various hdfs daemons in hdfs cluster?

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How to read file in HDFS?

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Does HDFS allow a client to read a file which is already opened for writing in hadoop?

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Why HDFS stores data using commodity hardware despite the higher chance of failures in hadoop?

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What happens when two clients try to access the same file on HDFS?

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How does hdfs get a good throughput?

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How one can format Hadoop HDFS?

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What is throughput in HDFS?

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Does HDFS allow a client to read a file which is already opened for writing?

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How to copy a file into HDFS with a different block size to that of existing block size configuration?

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