In FusionInsight HD, which of the following source types does Flume support? (multiple choice)

What is the role of the setMapOutputCompressorClass class in the development of MapReduce applications?

A customer has the following scenario: indexing PB-level data requires real-time indexing performance of more than 2MB/s, and supports full-text retrieval, and requires query performance to reach a second-level response.
For the above scenarios, regarding the Solr collection design, which of the following design schemes are reasonable? (multiple choices)

The system time of the node where the HDFS client is located must be consistent with the system time of the FusionInsight HD cluster. If there is a time difference, the time difference should be less than a few minutes?

In Streaming application development, which interface does Bolt use to send Tuples?