1. Jenkins와 Spring Batch 1) Jenkins의 스케쥴링 크론탭다중 잡의 병렬처리 : jar을 동일 포트에서 여러개 병렬로 돌린다면 포트 중복이 일어날텐데 ?Setting server.port=0 effectively disables the HTTP listener in Spring Boot, which is generally unnecessary for Spring Batch jobs that run independently without a web interface. • Since Spring Batch jobs typically don’t require an HTTP server, this is a safe way to avoid port collisions while runn..