Graylog JVM Heap Optimization
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What Changed # Pinned Graylog’s JVM heap to 1GB by adding explicit GRAYLOG_SERVER_JAVA_OPTS to docker-compose.yml:
1 GRAYLOG_SERVER_JAVA_OPTS: "-Xms1g -Xmx1g -XX:NewRatio=1 -server -XX:+UseG1GC" Why # Noticed high memory usage on the Graylog VM. JVM ergonomics was auto-allocating ~2GB for Graylog, leaving insufficient RAM for OS filesystem cache. OpenSearch query performance suffers without cache headroom.