710e2ec308
Scheduler uses requests (not limits) for placement. Previous 1Gi requests per pod caused Insufficient memory even with plenty of physical RAM. New requests: master 256Mi, workers 256Mi, history-server 128Mi. Limits unchanged. SPARK_WORKER_MEMORY reduced to 512m to match worker budget. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>