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What are 'slaves' and 'masters' in Hadoop?
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How to do ‘map’ and ‘reduce’ works?
What is the procedure for namenode recovery?
What the information segments utilized by hadoop are?
Explain some important features of hadoop?
Why cloudera is used?
Doesn’t google have its very own version of dfs?
How is the splitting of file invoked in Hadoop ?
What daemons run on master nodes?
Web-ui shows that half of the datanodes are in decommissioning mode. What does that mean? Is it safe to remove those nodes from the network?
How would you restart NameNode?
What happens if one hadoop client renames a file or a directory containing this file while another client is still writing into it?
What are the tools used in big data?
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Apache Hadoop (394) - MapReduce (354)
- Apache Hive (345)
- Apache Pig (225)
- Apache Spark (991)
- Apache HBase (164)
- Apache Flume (95)
- Apache Impala (72)
- Apache Cassandra (392)
- Apache Mahout (35)
- Apache Sqoop (82)
- Apache ZooKeeper (65)
- Apache Ambari (93)
- Apache HCatalog (34)
- Apache HDFS Hadoop Distributed File System (214)
- Apache Kafka (189)
- Apache Avro (26)
- Apache Presto (15)
- Apache Tajo (26)
- Hadoop General (407)
