RedisIn cluster mode, useJAVAWhich of the following is a best practice for application development?

• A.useredisClusterobject connectionRedis Server,transferJedisClusterofset.getother business operations interface for data manipulation; in multithreaded applications, multiple threads share oneJedisClusterobject.
• B.useJedisClusterobject connectionRedis Server,transferJedisClusterofset,getother business operations interfacet.
  In multithreaded applications, each thread creates aJedisClusterobject.
• C.useJedisobject connectionRedis Server,transferJedisofset.qetWaiting for business operation interface to process data operate.
• D.useJedisPoolobject createdJedisObject pool, each business operation starts fromJedisPoolget one Jedisobject, then call,Jedisofset.getWait for the business operation interface to perform data operations.

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HDFSThe system time of the node where the client is located is the same as theFusionInsight HDThe system time of the cluster should be consistent, if there is time difference, then the time difference should be less than a few minutes?

• A.30
• B.10
• C.20
• D.5

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Flumesupport real-time data collectionsourceWhich is the type?

• A.JMS
• B.taildir
• C.Log
• D.Thrift

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YarnWhich role is to manage individual node resources (CPU/Memory)of?

• A.NameNode
• B.Data Node
• C.NodeManager
• D.Resource Manager

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YARNIn the service, if you want to give the queueQueueAset capacity to30%, which parameter should be configured?

• A.yarm.scheduler.capacity.rot.QueueA. user-limit-factor
• B.yam.scheduler.capacity.root.QueueA. minimum-userlimit-percent
• C.yarm.scheduler.capacity.root.QueueA. capacity yarm.scheduler.capacity.rot.QueueA

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