______________ is percentage of memory relative to the maximum heap si – McqOptions

MCQOPTIONS

1.	______________ is percentage of memory relative to the maximum heap size in which map outputs may be retained during the reduce.
A.	mapred.job.shuffle.merge.percent
B.	mapred.job.reduce.input.buffer.percen
C.	mapred.inmem.merge.threshold
D.	io.sort.factor
Answer» C. mapred.inmem.merge.threshold

Discussion

No Comment Found

Related MCQs

The framework groups Reducer inputs by key in _________ stage.
The Hadoop MapReduce framework spawns one map task for each __________ generated by the InputFormat for the job.
The output of the reduce task is typically written to the FileSystem via _____________
Applications can use the ____________ to report progress and set application-level status messages
Users can control which keys (and hence records) go to which Reducer by implementing a custom :
The number of reduces for the job is set by the user via :
The right level of parallelism for maps seems to be around _________ maps per-node
The Mapper implementation processes one line at a time via _________ method.
Map output larger than ___ percent of the memory allocated to copying map outputs.
______________ is percentage of memory relative to the maximum heap size in which map outputs may be retained during the reduce.