@kjlab
Students
221
Reviews
16
Course Rating
4.8
평범한 SRE 입니다.
제가 가진 지식을 다른 사람에게 공유하는 것을 좋아합니다.
smathj9975
·
It seems like this was the only course on Inflearn that taught about Grafana through various different cases. Thank you so much !!!
swjudepark9049
Good
hobbitcoder
Your slow, step-by-step explanations help me understand.
yesnoing6903
Thank you for letting me know about the class I was interested in. You explained it slowly and well, so I think it's very helpful.
sark718371832025
While working as a backend developer, I use Grafana along with Kubernetes, but since there wasn't much material on Grafana, I decided to take this course! They explained everything by showing examples one by one, and it was hard to figure out what was what when I first went into Grafana, but after watching the course, I feel like I'm starting to get a sense of where to look in Grafana to see the data I want 😊😊 I think it's great for people who are new to Grafana, and also good for those who have only roughly accessed it and used familiar functions, and want to learn a bit more about Grafana!
Q&A
postgres 수업중 case 함수 스크립트 자료
SELECT DATE_TRUNC(CASE WHEN '${__interval}' = '1s' THEN 'second' WHEN '${__interval}' = '1m' THEN 'minute' WHEN '${__interval}' = '1h' THEN 'hour' WHEN '${__interval}' = '1d' THEN 'day' ELSE 'hour' END, updated_at) AS time, -- query 옵션에서 interval 값보고 조절 SUM(temperature) AS total_value FROM environment_data WHERE updated_at BETWEEN $__timeFrom() AND $__timeTo() GROUP BY time ORDER BY time;
posgresSQL 설치시 에러 내용
안녕하세요. 5432 포트가 이미 사용중인것 같습니다. linux, mac의 경우 lsof -i :5432 명령어로 사용중인지 여부를 알수 있습니다.혹은, docker ps 실행해보시면 PORTS 열에서, 이미 postgres를 설치했거나 다른 container가 5432 포트를 사용중인지 알수 있습니다. docker container 를 지우고 싶다면 docker rm -f 컨데이너ID 로 삭제하실 수 있고,lsof 명령어에서 PID를 확인하셨다면 kill -9 프로세스ID 로 종료가능합니다.
