PostgreSQL 08003 오류 원인과 해결 방법 완벽 가이드
The article discusses the PostgreSQL error code 08003, which occurs when a client attempts to execute commands through a non-existent database connection. This error is often seen in connection pool environments and during two-phase commit processes. Solutions include validating connections in the pool, monitoring prepared transactions, and implementing TCP keepalive settings.
- ▪PostgreSQL error code 08003 indicates that a client is trying to use a database connection that has already been terminated.
- ▪Common causes include reusing idle connections from connection pools and referencing invalid transaction IDs during two-phase commits.
- ▪To resolve the issue, it's important to set up connection validation queries and monitor prepared transactions regularly.
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| Original publisher | DEV.to (Top) |
| Canonical URL | https://dev.to/dbmserror/postgresql-08003-oryu-weoningwa-haegyeol-bangbeob-wanbyeog-gaideu-361i |
| Publication time | Sat, 30 May 2026 06:02:39 +0000 |
| Retrieval time | 2026-05-30T06:42:07.233Z |
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Opening excerpt (first ~120 words) tap to expand
try { if(localStorage) { let currentUser = localStorage.getItem('current_user'); if (currentUser) { currentUser = JSON.parse(currentUser); if (currentUser.id === 3943064) { document.getElementById('article-show-container').classList.add('current-user-is-article-author'); } } } } catch (e) { console.error(e); } umzzil nng Posted on May 30 • Originally published at oraerror.com PostgreSQL 08003 오류 원인과 해결 방법 완벽 가이드 #postgres #database #dba #sql 08003 connection does not exist 는? PostgreSQL 에러 코드 08003은 클라이언트가 이미 존재하지 않는 데이터베이스 연결을 통해 쿼리나 트랜잭션 명령을 실행하려 할 때 발생합니다. 쉽게 말해, 연결이 서버 측에서 이미 종료되었거나 끊어진 상태인데 클라이언트는 그 사실을 인지하지 못한 채 해당 연결을 계속 사용하려는 상황입니다. 주로 커넥션 풀 환경, 장시간 유휴 상태의 연결, 또는 PREPARE TRANSACTION과 관련된 2단계 커밋(Two-Phase Commit) 흐름에서 자주 목격되는 에러입니다. 주요 발생 원인 1.
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