diff --git a/src/main/resources/application.yml b/src/main/resources/application.yml
index 16bcccc..8936685 100644
--- a/src/main/resources/application.yml
+++ b/src/main/resources/application.yml
@@ -20,9 +20,10 @@ spring:
       max-request-size: 12MB
 
   # ===== SQL 초기화 ===== 기동 시 member 테이블 자동 생성(IF NOT EXISTS 라 멱등)
+  # 로컬: never (원격 DB에 매번 DDL 실행 시 기동 지연). 운영: always (배포서버 환경변수로 덮어씀)
   sql:
     init:
-      mode: always
+      mode: ${SQL_INIT_MODE:never}
       schema-locations: classpath:db/member.sql,classpath:db/board.sql,classpath:db/account.sql,classpath:db/dev-seed.sql
       continue-on-error: true
 
@@ -85,7 +86,7 @@ logging:
     name: logs/app.log
   logback:
     rollingpolicy:
-      file-name-pattern: logs/app.%d{yyyy-MM-dd}.log
+      file-name-pattern: logs/app.%d{yyyy-MM-dd}.%i.log
       max-history: 30
   level:
     root: INFO