Which of the following options are suitable for MapReduce scenarios?

When Solr creates a Collection, the recommended routing algorithm is compositld Router, then the Collection can expand the shard.

ElasticSearch is strongly dependent on Zookeeper.

Which of the following options is correct about the meaning of Zookeeper reliability?

Big data requires a change in traditional industry thinking. Data collection and analysis should be regarded as an important part of business processes. The data end drives business process optimization, realizes intelligence and automation, and realizes cross-border expansion by relying on data assets.