adplus-dvertising
frame-decoration

Question

__________ is a generalization of the facility provided by the MapReduce framework to collect data output by the Mapper or the Reducer.

a.

Partitioner

b.

OutputCollector

c.

Reporter

d.

All of the mentioned

Posted under Hadoop

Answer: (b).OutputCollector

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. __________ is a generalization of the facility provided by the MapReduce framework to collect data output by the Mapper or the Reducer.

Similar Questions

Discover Related MCQs

Q. _________ is the primary interface for a user to describe a MapReduce job to the Hadoop framework for execution.

Q. ________ systems are scale-out file-based (HDD) systems moving to more uses of memory in the nodes.

Q. Hadoop data is not sequenced and is in 64MB to 256MB block sizes of delimited record values with schema applied on read based on ____________

Q. __________ are highly resilient and eliminate the single-point-of-failure risk with traditional Hadoop deployments.

Q. HDFS and NoSQL file systems focus almost exclusively on adding nodes to ____________

Q. Which is the most popular NoSQL database for scalable big data store with Hadoop?

Q. The ___________ can also be used to distribute both jars and native libraries for use in the map and/or reduce tasks.

Q. HBase provides ___________ like capabilities on top of Hadoop and HDFS.

Q. __________ refers to incremental costs with no major impact on solution design, performance and complexity.

Q. Streaming supports streaming command options as well as _________ command options.

Q. Which of the following Hadoop streaming command option parameter is required?

Q. To set an environment variable in a streaming command use ____________

Q. The ________ option allows you to copy jars locally to the current working directory of tasks and automatically unjar the files.

Q. ______________ class allows the Map/Reduce framework to partition the map outputs based on certain key fields, not the whole keys.

Q. Which of the following class provides a subset of features provided by the Unix/GNU Sort?

Q. Which of the following class is provided by the Aggregate package?

Q. Hadoop has a library class, org.apache.hadoop.mapred.lib.FieldSelectionMapReduce, that effectively allows you to process text data like the unix ______ utility.

Q. ___________ generates keys of type LongWritable and values of type Text.

Q. In _____________ the default job is similar, but not identical, to the Java equivalent.

Q. An input _________ is a chunk of the input that is processed by a single map.