Adjusting Flush Intervals
Flushing makes indexed documents searchable but can impact performance if done too frequently. The default refresh_interval is set to 1 second, but increasing this interval can significantly enhance indexing throughput. Balance the need for real-time data availability with indexing performance to find an optimal refresh rate. For example, setting the refresh_interval to 30 seconds or more can substantially improve indexing speed during bulk operations.
Elasticsearch Performance Tuning
As your Elasticsearch cluster grows and your usage evolves, you might notice a decline in performance. This can stem from various factors, including changes in data volume, query complexity, and how the cluster is utilized. To maintain optimal performance, it’s crucial to set up monitoring and alerting systems that can preemptively highlight issues, allowing you to manage maintenance effectively.
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