In the Spark SQL table, 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, which seriously affects performance.

• A.False
• B.True

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Which of the following components is included in the platform architecture of Huawei's big data solution? (Multiple choice)

• A.Hadoop layer
• B.GaussDB 200
• C.Datafarm layer
• D.Fusiolnght Manager

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Multiple channels can be configured in the properties.protertises configuration file of Flumef to transmit data

• A.True
• B.False

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When using the configuration planning tool to plan the Fusioninsight HD V100R002C50 cluster, you can use the configuration planning tool of the V100R2002C60 version to plan.

• A.False
• B.True

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Regarding Hive log collection on the Fusioninsight HD Manager interface, which option is incorrect?

• A.Log collection can be performed in a specified time period, for example, only logs from 2016-1-1 to 2016-140 are collected
• B.Specific users can be designated for log collection, for example, only logs generated by userA can be downloaded
• C.You can specify an instance for log collection, for example, specify a separate collection of MetaStore logs
• D.You can specify the node IP for log collection, for example, only download the log of a certain IP

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