Did you ever ran into a lop sided job that resulted in out of memory error

1209

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

1730

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What are the different operational commands in HBase at record level and table level?

359

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What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?

1166

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What is the Job interface in MapReduce framework?

903

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What is the problem with HDFS and streaming data like logs

1014

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What is the Use of SSH in Hadoop ?

957

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What infrastructure do we need to process 100 TB data using Hadoop?

996

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What is the difference between a Hadoop and Relational Database and Nosql?

1072

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What is Schema on Read and Schema on Write?

914

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How to overwrite an existing output file during execution of mapreduce jobs?

1083

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Write a Pig UDF Example ?

767

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What is the difference between traditional RDBMS and Hadoop?

1163

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What is the main purpose of HDFS fsck command?

1788

---

What is safe mode in Hadoop?

953

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