Which of the following descriptions about the characteristics of Kafka Partition replicas is correct?

Huawei has extensive experience in big data solutions in finance, public security, railways, government affairs and other industries.

What processes are included in the HBase service of Fusioninsight HD? (Multiple choice)

In many small file scenarios, Spark will start a lot of tasks. When there is a Shuffle operation in the SQL logic, it will greatly increase the number of hash buckets, which will seriously affect performance. In Fusioninsight, for small file scenarios, the () operator is usually used to merge the partitions generated by the small files in the Table to reduce the number of partitions, to avoid generating too many hash buckets during shuffle and improve performance?

Which of the followingOSWhich version is recommended for building a Fusioninsight V1R2C60 cluster?