what happens when namenode goes down during file read operation in hadoop?
No Answer is Posted For this Question
Be the First to Post Answer
Why do we need Hadoop Archives? How is it created?
Explain what is a sequence file in hadoop?
Did you ever ran into a lop sided job that resulted in out of memory error, if yes then how did you handled it ?
What are the network requirements for hadoop?
How will you write a custom partitioner for a Hadoop job?
How job tracker schedules an assignment?
How to handle bad records during parsing?
Define a sequence file in hadoop?
What is namenode?
What type of data we should put in distributed cache? When to put the data in dc? How much volume we should put in?
What is difference between secondary namenode, checkpoint namenode & backupnode?
Is nosql follow relational db model?
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)