Performance impact

How to achieve refresh in elasticsearch without performance impact.?

how to achieve Number of threads running and refresh elastic search without any performance impact.?

A refresh results in Lucene segments being generated, which allows the data to be searched. This is an expensive operation, and will affect performance if done frequently. If there was a way to do this without performance impact I bet it would be done more frequently by default.

how to achieve Number of threads running and refresh elastic search without any performance impact.?

Issuing refreshes frequently in Elasticsearch will have an impact on performance. There is no way to avoid that.

If this does not answer your question, please clarify your question.

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