⚠️ These docs have been old, I have added official docs links to each section for reference, so readers be aware of it!
Elasticsearch Configuration Overview
👉 This writeup is part of “Elasticsearch Deploy Docs” series. Important Elasticsearch Configuration 📄 Official Docs Mainly 3 configuration files elasticsearch.yml - Elasticsearch config jvm.options - Elasticsearch JVM settings config log4j2.properties - Elasticsearch logging config Environment Variables export the ES_PATH_CONF etc/default/elasticsearch (Sourced environment variables from. Recommended) Settings 📄 Official Docs Before going to production, it is recommended go through be below elasticsearch configs. Refer sample_config directory for configuration Configuration Description Configuration Reference Path settings Log and data config Refer here Cluster name Cluster name Refer here Node name Node name Refer here Network host IP address that elasticsearch bind on Refer here Discovery settings Cluster discovery and initial master config Refer here Heap size JVM heap memory configuration Recommended heap size should be half of system memory. Make sure min and max heap memory same value. Refer here Heap dump path Heap dump location path config Default config is sufficient. Refer here GC logging Garbage collection logging configuration Default config is sufficient. Refer here Temp directory Configure private temporary directory that Elasticsearch uses is excluded from periodic cleanup Important System Configuration 📄 Offical Docs ...