https://jinlog.dev/categories/postgresql/Recent content in PostgreSQL on Jin's 블로그Hugoko-krSat, 26 Sep 2026 19:56:00 +0900https://jinlog.dev/posts/postgresql/patroni-01-architecture/Sat, 26 Sep 2026 08:00:00 +0900https://jinlog.dev/posts/postgresql/patroni-01-architecture/DCS와 leader key, HA loop, failover 판단https://jinlog.dev/posts/postgresql-ops/01-diagnostic-toolkit/Sat, 26 Sep 2026 08:00:00 +0900https://jinlog.dev/posts/postgresql-ops/01-diagnostic-toolkit/미리 켜 둘 로그 설정, pg_stat_activity와 wait event, pg_stat_statements, pg_stat_iohttps://jinlog.dev/posts/postgresql/01-process-architecture/Thu, 24 Sep 2026 00:00:00 +0000https://jinlog.dev/posts/postgresql/01-process-architecture/postmaster, backend, 백그라운드 프로세스들의 역할https://jinlog.dev/posts/postgresql-ops/02-blocked-sessions/Sat, 26 Sep 2026 18:00:00 +0900https://jinlog.dev/posts/postgresql-ops/02-blocked-sessions/락 대기, DDL이 만드는 락 큐, deadlock, lock_timeouthttps://jinlog.dev/posts/postgresql/patroni-02-setup/Sat, 26 Sep 2026 08:00:00 +0900https://jinlog.dev/posts/postgresql/patroni-02-setup/etcd, patroni.yml, HAProxy, switchover와 failoverhttps://jinlog.dev/posts/postgresql/02-memory-architecture/Thu, 24 Sep 2026 00:00:00 +0000https://jinlog.dev/posts/postgresql/02-memory-architecture/shared buffers, work_mem, WAL buffershttps://jinlog.dev/posts/postgresql-ops/03-sudden-slow-query/Sat, 26 Sep 2026 19:00:00 +0900https://jinlog.dev/posts/postgresql-ops/03-sudden-slow-query/plan 변경, 통계, generic plan, auto_explainhttps://jinlog.dev/posts/postgresql/patroni-03-operations/Sat, 26 Sep 2026 08:00:00 +0900https://jinlog.dev/posts/postgresql/patroni-03-operations/설정 변경, DCS 장애, 데이터 유실, split-brain, slothttps://jinlog.dev/posts/postgresql/03-storage-layout/Thu, 24 Sep 2026 00:00:00 +0000https://jinlog.dev/posts/postgresql/03-storage-layout/페이지 레이아웃, 튜플 구조, TOASThttps://jinlog.dev/posts/postgresql-ops/04-long-transactions/Sat, 26 Sep 2026 19:05:00 +0900https://jinlog.dev/posts/postgresql-ops/04-long-transactions/xmin horizon이 멈추는 원인과 찾는 법https://jinlog.dev/posts/postgresql/04-mvcc/Thu, 24 Sep 2026 00:00:00 +0000https://jinlog.dev/posts/postgresql/04-mvcc/xmin/xmax, 스냅샷, 튜플 가시성 판단https://jinlog.dev/posts/postgresql-ops/05-table-bloat/Sat, 26 Sep 2026 19:20:00 +0900https://jinlog.dev/posts/postgresql-ops/05-table-bloat/bloat 측정, autovacuum 튜닝, REINDEX CONCURRENTLYhttps://jinlog.dev/posts/postgresql/05-vacuum/Thu, 24 Sep 2026 00:00:00 +0000https://jinlog.dev/posts/postgresql/05-vacuum/dead tuple, FSM, Visibility Maphttps://jinlog.dev/posts/postgresql-ops/06-disk-full/Sat, 26 Sep 2026 19:24:00 +0900https://jinlog.dev/posts/postgresql-ops/06-disk-full/pg_wal 증가, temp file, 디스크가 가득 찼을 때의 동작https://jinlog.dev/posts/postgresql/06-xid-wraparound/Thu, 24 Sep 2026 00:00:00 +0000https://jinlog.dev/posts/postgresql/06-xid-wraparound/왜 생기고 어떻게 막는가https://jinlog.dev/posts/postgresql-ops/07-wraparound-warning/Sat, 26 Sep 2026 19:31:00 +0900https://jinlog.dev/posts/postgresql-ops/07-wraparound-warning/경고 단계와 쓰기 거부, 강제 VACUUM 대응https://jinlog.dev/posts/postgresql/07-wal/Thu, 24 Sep 2026 00:00:00 +0000https://jinlog.dev/posts/postgresql/07-wal/LSN, full page writes, WAL 레코드 구조https://jinlog.dev/posts/postgresql-ops/08-standby-lag/Sat, 26 Sep 2026 19:35:00 +0900https://jinlog.dev/posts/postgresql-ops/08-standby-lag/write/flush/replay lag, hot standby 충돌https://jinlog.dev/posts/postgresql/08-checkpoint-and-recovery/Thu, 24 Sep 2026 00:00:00 +0000https://jinlog.dev/posts/postgresql/08-checkpoint-and-recovery/체크포인트가 하는 일과 장애 후 복구가 진행되는 순서, PITR의 원리https://jinlog.dev/posts/postgresql-ops/09-connection-failures/Sat, 26 Sep 2026 19:39:00 +0900https://jinlog.dev/posts/postgresql-ops/09-connection-failures/too many clients, 예약 슬롯, 인증 실패https://jinlog.dev/posts/postgresql/09-streaming-replication/Thu, 24 Sep 2026 00:00:00 +0000https://jinlog.dev/posts/postgresql/09-streaming-replication/walsender와 walreceiver, 동기 복제, hot standby 충돌, replication slothttps://jinlog.dev/posts/postgresql-ops/10-checkpoint-io/Sat, 26 Sep 2026 19:45:00 +0900https://jinlog.dev/posts/postgresql-ops/10-checkpoint-io/잦은 체크포인트, pg_stat_checkpointer, bgwriterhttps://jinlog.dev/posts/postgresql/10-query-processing/Thu, 24 Sep 2026 00:00:00 +0000https://jinlog.dev/posts/postgresql/10-query-processing/파서, 분석기, 리라이터, 플래너, 실행기와 통계 정보https://jinlog.dev/posts/postgresql-ops/11-out-of-memory/Sat, 26 Sep 2026 19:53:00 +0900https://jinlog.dev/posts/postgresql-ops/11-out-of-memory/work_mem, OOM으로 backend가 죽을 때의 크래시 재시작https://jinlog.dev/posts/postgresql-ops/12-data-corruption/Sat, 26 Sep 2026 19:56:00 +0900https://jinlog.dev/posts/postgresql-ops/12-data-corruption/checksum 오류, amcheck, 손상 범위 파악https://jinlog.dev/posts/postgresql/extension-internals/Fri, 25 Sep 2026 00:00:00 +0000https://jinlog.dev/posts/postgresql/extension-internals/공유 라이브러리와 fork 같은 OS 배경지식부터 CREATE EXTENSION, 라이브러리 로드, hook, shared_preload_libraries, 업그레이드까지