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

1230

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

1735

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

361

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

1173

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What is the Job interface in MapReduce framework?

910

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What is the problem with HDFS and streaming data like logs

1022

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What is the Use of SSH in Hadoop ?

960

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

1006

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

1076

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What is Schema on Read and Schema on Write?

916

---

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

1092

---

Write a Pig UDF Example ?

776

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What is the difference between traditional RDBMS and Hadoop?

1174

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What is the main purpose of HDFS fsck command?

1792

---

What is safe mode in Hadoop?

961

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