ElasticSearch is strongly dependent on Zookeeper.

Question

Options

• ATrue
• BFalse

• A
  82% (18)
• B
  18% (4)

Explanation

Heads up: the stated correct answer appears to be wrong. The correct answer is actually B. False - Elasticsearch does not depend on Zookeeper.

Why B (False) is correct:

Elasticsearch manages its own cluster coordination internally. Originally it used a built-in mechanism called Zen Discovery; since version 7.x it uses a dedicated Cluster Coordination subsystem (based on a Raft-like consensus algorithm). Zookeeper is never involved. Elasticsearch was specifically designed to be self-contained, avoiding external coordination dependencies.

Why A (True) is wrong:

You may be thinking of Apache Solr (SolrCloud mode), which does rely on Zookeeper for distributed coordination - this is a common source of confusion between the two Lucene-based search engines. Other systems like Apache Kafka and HBase also use Zookeeper, but Elasticsearch never has.

Memory tip:

"Elasticsearch Eliminates External coordinators"** - the three E's. Solr needs a Zookeeper; Elasticsearch needs Zero external dependencies for coordination.

I'd recommend verifying this against your course materials - if this came from an official exam bank or instructor, it may contain an error worth flagging.

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