Chapter 6. Troubleshooting Performance and Reliability Issues

This chapter focuses on troubleshooting common performance and reliability issues for Elasticsearch using case studies with real-world examples.

This chapter will help answer the following questions:

  • How do I configure my Elasticsearch cluster to optimize performance?
  • How do I prevent OutOfMemoryError exceptions?
  • How does my data-indexing strategy affect cluster resources?
  • Why are my queries running slow?
  • How can I keep query performance strong when indexing a large amount of data?
  • How can I configure indices to use less disk space?

System configuration

Elasticsearch configuration may lead to a number of performance and reliability issues, as mentioned in Chapter 2, Installation and the Requirements ...

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