- 전체
- Sample DB
- database modeling
- [표준 SQL] Standard SQL
- G-SQL
- 10-Min
- ORACLE
- MS SQLserver
- MySQL
- SQLite
- postgreSQL
- 데이터아키텍처전문가 - 국가공인자격
- 데이터 분석 전문가 [ADP]
- [국가공인] SQL 개발자/전문가
- NoSQL
- hadoop
- hadoop eco system
- big data (빅데이터)
- stat(통계) R 언어
- XML DB & XQuery
- spark
- DataBase Tool
- 데이터분석 & 데이터사이언스
- Engineer Quality Management
- [기계학습] machine learning
- 데이터 수집 및 전처리
- 국가기술자격 빅데이터분석기사
- 암호화폐 (비트코인, cryptocurrency, bitcoin)
NoSQL [mongodb] Error: network error while attempting to run command 'isMaster' on host '127.0.0.1:27017'
2020.12.16 18:09
[mongodb] Error: network error while attempting to run command 'isMaster' on host '127.0.0.1:27017'
[Question]
.> mongo
MongoDB shell version v3.6.5 connecting to: mongodb://127.0.0.1:27017 2018-06-26T17:37:13.313+0530 I NETWORK [thread1] Socket recv() An established connection was aborted by the software in your host machine. 127.0.0.1:27017 2018-06-26T17:37:13.313+0530 I NETWORK [thread1] SocketException: remote: (NONE):0 error: SocketException socket exception [RECV_ERROR] server [127.0.0.1:27017] 2018-06-26T17:37:13.313+0530 E QUERY [thread1] Error: network error while attempting to run command 'isMaster' on host '127.0.0.1:27017' : connect@src/mongo/shell/mongo.js:251:13 @(connect):1:6 exception: connect failed
[Answer]
See Mongod logs to find the root cause. For me it was leaking connections from one of the clients, this is what I found in logs: NETWORK [listener] connection refused because too many open connections:
광고 클릭에서 발생하는 수익금은 모두 웹사이트 서버의 유지 및 관리, 그리고 기술 콘텐츠 향상을 위해 쓰여집니다.
