Server is unstable, lag spikes and crashes

[MrGugel]

Hi guys.

I am playing FTB Direwolf20 1.16 1.7.0 on hosting (6Gb RAM, SSD, Linux)
I added OpenBackups 1.16.x - 1.1.0 (removed FTB Backups), BiomesOPlenty 1.16.4 - 13.0.0.431, Performat 1.16.2 - 4.3.30m

I am experiencing lag spikes on my server (lasting from 4-15sec) but I ignored it because I was too lazy to investigate, but I had enough. I downloaded spark and run the profiler but I don't understand it, I think that it has to do something with world compression ? I thought that FTB Backups might be causing it, because previously 1 backup with a size of around 600MB took max 1 min. but then out of nowhere, it took around 2 hours. So I changed it for OpenBackups mod but it's the same ... and I don't that backups should take that long, or am I wrong ?
Profiler link: https://spark.lucko.me/oL1cmEmFDS

But today, when I wanted to play, the server was offline. So I checked and it crashed due to a single server tick which lasted 60 sec.... Okay, I restarted it, joined the game, played for like a minute and another crash, now due to ticking entity... bruh. Okey another restart and another crash again due to a long tick.

Can you guys help me somehow, I m fed up with this

Here are the crash reports:

1. https://pastebin.com/DH9Vcx6m
2. https://pastebin.com/2wFWpCE5
3. https://pastebin.com/ac1KWyfG

If you need any more info, let me know. I can post debug and latest logs if needed.

 

[grandrolf]

Do you have these lag spikes on a non changed version of the pack?

If yes, please post logs and crash reports from those, please provide full logs - use https://paste.feed-the-beast.com if pastebin.com can't handle the log - if it's too large.

 

[MrGugel]

I don't know, I can't easily remove mods like BiomesOPlenty, but I can remove OpenBackups and Performat should make things better imo (and I think it did, because it was much worse without it)

 

[grandrolf]

We don't give support on altered packs, so best suggestion is to revert to default, try it out in a new world (then you can keep your old with progress), and if there's issues on that default one - we can help troubleshoot that.