RedisofLISTData structure, suitable for which of the following scenarios? (multiple choice)
FusionInsight HDofHiveIn the application, there are the following scenarios:? ? ?Storage files have higher? ?efficiency, and most
Minute? ?Only a part of the letter is involved in the file, this scenario is suitable for using a column file (ORC F??)storage.
FusionInsight HDWhich of the following belong toOozieofMapReduce Actionconfiguration item? (multiple choice)
FusionInsight HDofHive, user-definedUDFcan andHiveBuilt-inUDFduplicate name, in this case,
will use user-definedUDF.
FusionInsight HDmiddle,OozieBefore submitting the job, you need to upload the configuration files andjarpackage toHDFS
existKafkamiddle,ProducerThis can be done by configuring the synchronization parameters (producer.type) to ensure that data is sent in order.
existKafkamiddle,ConsumerIt can support offline message and online message consumption at the same time, but consume data sequentially
of.
useFusionInsight HDofHiveQuery data, when the amount of data in the intermediate results of the query is large, you can choose to compress the intermediate data
Structured data for better performance.
Which of the following areHiveRelevant parameters for intermediate result compression? (multiple choice)
existFusionInsight HDmiddle,SparkBy defaultYARNAs a cluster resource management system.
when aMapReduceWhen the application is executed, which of the following actions ismapoccurred before the stage?
existSparkin, becauseDataFramethanRDDThe higher-level interface will have more calling levels. because
Therefore, all based onDataFrameThe performance of the developed program will be higher than that based onRDDThe developed program has poor performance.
existHBaseWhich of the following interfaces or classes does not need to be involved in the implementation of business logic for writing data?
FusionInsight HDmiddle,LoaderThe sequence of transformation steps for a job is input, transformation, and output.
For multiple business sharingrowkey, What are the countermeasures for situations that lead to conflicting data access?
(multiple choice)
existMapReduceIn application development of , which of the followingJAVAThe class is responsible for managing and running a Counting tasks?
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