2 months ago
Please help me!!
I'm running a simple app with just a Spring Boot backend and MySQL. The site has been live for about 5 days.
Tonight, I've been getting spammed with emails saying my backend service is out of memory (7-8 times in 5 hours). I checked the frontend, backend, and DB logs but found absolutely nothing. The only thing in the logs is the backend restarting at the exact time Railway emailed me.
Because of this, I have no idea what's going on.
15 Replies
2 months ago
Did the deployment restart or redeploy because of a crash?
2 months ago
Any error log on the crashed deployment?
2 months ago
maybe a mem leak
2 months ago
are metrics looking fine? do you have any JVM flags set?
Thank you very much. I'm new to JVM and didnt set any JVM flags. After I did that, the metrics look fine.
2 months ago
what flags did you set?
During the issue, memory reached and stayed at 1000MB, after I set the flag -Xmx512m, it is stable at ~400MB
2 months ago
That's a tight utilization if before setting the flags it used 1GB, if your app has a mem leak it will hit it quicker than before.
2 months ago
keep monitoring it
Right now, I have 0 active users, but I'm expecting about 300 active users after branding. What kind of limit do you think I should set?
I think there are a few other things at play here. Let me look into my system first
2 months ago
Yep, it's a bit more complicated than just setting the min/max mem, if you have a mem leak it will still eventually crash (and charge for the used mem)
Status changed to Solved medim • about 2 months ago