Assuming that HDFS only saves 2 copies when writing data. During the writing process, the HDFS Client first writes the data to DataNodel1 and then writes the data to DataNode2.
In the Fusioninsight HD system, if a Loader node in the cluster is abnormal and other services are not abnormal, the normal use of Loader service functions will not be affected.
The checkpoint mechanism in Flink continuously draws snapshots of streaming applications. The state snapshots of streaming applications can only be saved in the HDFS file system
Batch processing of high-value and highly aggregated information and knowledge is the main business requirement of the big data industry.
What storage formats does Hive support in the Fusioninsight HD system include? (Multiple choice)
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