A.False

B.True

A.True

B.False

A.Limit Redis memory size

B.Turn off persistence

C.Reduced key-values

D.slowlog configuration

A.Proucer connects to any normal Broker instance to generate data

B.As a message producer, Proucer can write data directly to Zookeeper

C.Proucer is responsible for producing data, Consumer is responsible for consuming data, and a connection needs to be established between Producer and Consumer.

D.Proucer can not only send data to Broker, but also send data to Consumer

A.Does not check the validity of the data

B.Blocks on a DataNode. can be the same

C.Blocks stored in different DataNodes must be different

D.Periodically send the block-related information of this node to the NameNode