How does job tracker schedule a job for the task tracker?
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In which directory hadoop is installed?
Which database is used in hadoop?
What are the side effects of not running a secondary name node?
How can you set an arbitrary number of mappers to be created for a job in Hadoop?
What are the most common OutputFormat in Hadoop?
What is difference between secondary namenode, checkpoint namenode & backupnode?
List Hadoop’s three configuration files?
Name the most common Input Formats defined in Hadoop? Which one is default?
What is Small File Problem in Hadoop? How can it be resolved?
What daemons run on master nodes?
How does job tracker schedule a job for the task tracker?
Give a brief overview of Hadoop history?
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)