A company uses Amazon OpenSearch Service (Amazon Elasticsearch Service) to store and analyze its website clickstream data. The company ingests 1 TB of data daily using Amazon Kinesis Data Firehose and stores one day’s worth of data in an Amazon ES cluster. The company has very slow query performance on the Amazon ES index and occasionally sees errors from Kinesis Data Firehose when attempting to write to the index. The Amazon ES cluster has 10 nodes running a single index and 3 dedicated master nodes. Each data node has 1.5 TB of Amazon EBS storage attached and the cluster is configured with 1,000 shards. Occasionally, JVMMemoryPressure errors are found in the cluster logs. Which solution will improve the performance of Amazon ES?

Topic #: - All AWS Certified Data Analytics - Specialty Questions

A. Increase the memory of the Amazon ES master nodes.
B. Decrease the number of Amazon ES data nodes.
C. Decrease the number of Amazon ES shards for the index. Most Voted
D. Increase the number of Amazon ES shards for the index.

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