Can we do real-time processing using spark sql?

293

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How sparksql is different from hql and sql?

471

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What is a parquet file?

265

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How to split single hdfs block into partitions rdd?

45

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How does data transfer happen from hdfs to hive?

145

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What is non-dfs used in hdfs web console

65

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

146

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How to use hdfs put command for data transfer from flume to hdfs?

52

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What are tools available to send the streaming data to hdfs?

33

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how does hdfs ensure data integrity of data blocks stored in hadoop hdfs?

37

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Compare hbase vs hdfs?

36

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Which classes are used by the hive to read and write hdfs files?

70

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Is the hdfs block size reduced to achieve faster query results?

36

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Why does hive not store metadata information in hdfs?

27

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When and how to create hadoop archive?

410

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