H13-711_V3.0-ENU試験無料問題集「Huawei HCIA-Big Data V3.0 認定」
Fusioninsight is Huawei's unified platform for enterprise-level big data storage, query, and analysis. It can help enterprises quickly build massive data information processing systems, and discover new value points and business opportunities through real-time and non-real-time analysis and mining of massive information data.
正解:A
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FusionlnsightHD uses the HBase client to write 10 pieces of data in batches. A Regionserver node contains 2 Regions of the table, A and B, respectively. Two of the 10 pieces of data belong to A.
4 belong to B.
Clearly write How many RPC requests do I need to send to the Regionserver to enter these 10 pieces of data?
4 belong to B.
Clearly write How many RPC requests do I need to send to the Regionserver to enter these 10 pieces of data?
正解:B
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In Spark SQL tables, there are often many small files (the size is much smaller than the HDFS block size). In this case, Spark will start more Tasks to process these small files. When there is a Shuffle operation in the SQL logic, it will Greatly increase the number of hash buckets. This seriously affects performance.
正解:B
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