When the scale of the Hadoop cluster is large, the distribution of data will be very critical. Users need to decide whether the cluster is to be expanded and whether the data needs to be balanced according to the data distribution. Which of the following statements about Fusioninsight resource distribution monitoring are correct? (Multiple choice)

• A.Through the DashBoard interface, you can view the distribution of host resources. For example, a list of hosts with a memory occupancy rate of 50-75%, and link redirection is provided
• B.Help users quickly find the node with the highest resource consumption and adopt appropriate measures
• C.Through the resource distribution viewing interface of each service homepage, you can view the distribution of key resources
• D.Can help users quickly gather on the most critical resource consumption

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According to the way of data acquisition in Flue, Source can be divided into driven Sourcet and( )Source.

• A.polling

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Which fields can ElasticSearchl's balancing algorithm be applied to?

• A.volume reduction
• B.Import Data
• C.Expansion
• D.export data

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The driving source is that flume periodically actively acquires data.

• A.True
• B.False

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In what scenarios is the MapReduce component of Hadoop good at handling computing tasks?

• A.Streaming computing
• B.Iterative calculation
• C.Offline calculation
• D.Real-time interactive computing

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