Explicitly set Elasticsearch heap size during CI and local development #86513
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* master: (48 commits) Fix request with disabled aggregation (elastic#85696) [Security Solution][Detections][Threshold Rules] Threshold Rule Bug Fixes (elastic#84918) Removed a possibility to define two different names for Alert types on API and UI level. (elastic#86236) Bump Node.js from version 14.15.2 to 14.15.3 (elastic#86593) [index patterns] Fleep app - Keep saved object field list until field caps provides fields (elastic#85370) [Security Solutions] fix timeline tabs + layout (elastic#86581) Upgrade to hapi version 20 (elastic#85406) App Services: Remove remaining uiActions, expressions, data, embeddable circular dependencies. (elastic#82791) Rename chartLibrary setting to legacyChartsLibrary (elastic#86529) [CI] TeamCity updates (elastic#85843) [Maps] Use Json for mvt-tests (elastic#86492) [Rollup Jobs] Added autofocus to cron editor (elastic#86324) [Monitoring][Alerting] CCR read exceptions alert (elastic#85908) [CI] Bump memory for main CI workers (elastic#86541) Explicitly set Elasticsearch heap size during CI and local development (elastic#86513) [App Search] Updates to results on the documents view (elastic#86181) [Discover] Change default sort handling (elastic#85561) [App Search] Convert DocumentCreationModal to DocumentCreationFlyout (elastic#86508) [App Search] Sample Engines should have access to the Crawler (elastic#86502) Fixed duplication of create new modal (elastic#86489) ...
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See elastic/elasticsearch#65905 and elastic/elasticsearch#66567
Elasticsearch is now, by default, setting the min heap size to 50% of the machines memory. This causes a problem in CI, because we are running 10+ instances of ES on the same machine, and each one tries to allocate 50%. It will also allocate way more than is necessary for local dev.
This quick fix should explicitly set the heap size to the old default (1g). Let me know if there's a better place/way to do it. If the heap size ever needs to be set for specific suites, we may want to consider moving it to a separate option. For now, I didn't see any instances of it being explicitly set anywhere.
This should also allow us to scale the machine size back down for ES snapshot jobs, and should allow snapshots to be verified again.