The backend of the company website is written in Java. When accessing it, I get 502 Bad Gateway. What is the reason? Only I am visiting

Question

I am the only Java technician in the company, and Party B has not yet delivered the project, so I cannot see all the data in the background

Answer 1

All I can say is that something must have gone wrong. . . . .

JAVA backend? Niginx proxy?

Answer 2

Look at the nginx log

Answer 3

Can’t you Google it first and think about it yourself before asking questions? You're really delaying others from browsing important information! shame on you

Answer 4

No information at all. . . How to judge

Answer 5

The background may have been down

Answer 6

The Java background monitored by nginx is not started, or the background hangs.

Answer 7

Brother, it’s obviously 502

Answer 8

They are all pushed to Google Now. If needed, I can help you fix Java and Nginx for many years

Answer 9

Look directly at your background output log

Answer 10

This can only mean that your background is down