my chief architect means G1GC is awesome and works better then default GC. He mentioned, https://www.elastic.co/guide/en/elasticsearch/guide/current/_don_8217_t_touch_these_settings.html is outdated. We run Elasticsearch with oracle java 8 with "-Xms28g -Xmx28g -XX:+UseG1GC -XX:+UseCompressedOops -XX:+AlwaysPreTouch ....". I feel, that the original settings works better
Does anyone know of reasons why default GC is better? Sorry for stupid question, but I'm not professional with GC tuning. I need a few reasons to convince my chief architect....