10 months ago
Not a complaint or a problem, just a discussion.
If we take a look in the image here, I'm being charged for 728GB minutely GB of RAM? What does this mean? What is this a measure of? Why is this number so incredibly high? As well as CPU usage? My graphs don't look drastic whatsoever…
109 Replies
10 months ago
322ea2ee-d764-421d-9d11-77dde0980f62
10 months ago
This is what the observability page looks like for today

10 months ago
322ea2ee-d764-421d-9d11-77dde0980f62
10 months ago
It looks like mongodb is taking a giant chunk of this?

10 months ago
RAM is probably the most expensiveish resource on Railway (and most platforms), your application seems to use quite a bit -between 500mb and 1gb (specially mongo)- which is billed by the minute.
10 months ago
My stupid dependencies… is Mongo not one of your most popular databases? Is this really just hope much it uses?
10 months ago
Yeah, mongo is pretty popular
10 months ago
So nobody can sustain a mongo database under the $5 plan, lol?
10 months ago
Prob PostgreSQL, MySQL and Mongo
10 months ago
Seems to be using 250 and rising, consistently

10 months ago
You can enable serverless to scale it down to zero and then scale back up based on traffic
10 months ago
But yeah, mongo is know for being very mem intensive, together with mysql
10 months ago
I don't really see that being feasable with the amount of time a coldstart would take
10 months ago
Feels weird that nobody can host a very popular database on one of the two plans, especially because it's like, the entire point of this system
10 months ago
I always recommend postgresql if the user wants lower costs
10 months ago
Too late for that 😂
10 months ago
I mean, that's mongodbs fault
10 months ago
I suppose ¯_(ツ)_/¯
10 months ago
250mb is a lot
10 months ago
MongoDB took ~20 cents in one day, * 30 meaning it would be $6 for just one database
10 months ago
@Loudbook this is what i mean (from <#727689277219012669>)

10 months ago
7 cents of ram and 11 cents of cpu
10 months ago
thats from your screnshot
10 months ago
oh I am fairly blind aren’t I
10 months ago
do you run it in a metal region by any chance? when i moved mine to metal the cpu costs went wayyy down
10 months ago
here's the latest today

10 months ago
i'll check
10 months ago
I am not
10 months ago
I’m going to migrate to a closer data center that’s also on metal
10 months ago
yeah definitely give that a try
10 months ago
mongo seems to run better on metal cpus
10 months ago
Is all of this amd64?
10 months ago
yep
10 months ago
Why not arm?
10 months ago
That would be dirt cheap
10 months ago
idk ask railway
10 months ago
lol
10 months ago
🚂
10 months ago
but anyway you can see here on your observability graph, thats an insane amount of cpu for a small db

10 months ago
mine did nonsense like this too before i switched it to metal, i couldnt tell you why it behaved that way but metal cpu good
10 months ago
it now uses so little cpu it barely even registers on the graphs

10 months ago
damn
10 months ago
I’m using 0 now
10 months ago
and a fraction of the RAM too
10 months ago
the memory will creep back up as its used
10 months ago
nvm still most of the RAM as before
10 months ago
yeah
10 months ago
i added --wiredTigerEngineConfigString="cache_size=50M" to mine which stopped it from going above 300 randomly, but it still hovers around 300 and theres not really anything you can do about that
10 months ago
Well yeah, but I don't want every environment connecting to the same one
10 months ago
i switched to using one on railway when mongo killed my free cluster randomly 🥲
10 months ago
uh oh

10 months ago
had a good run tho, that cluster was alive for years
10 months ago
thats strange
10 months ago
nevermind we vibin

10 months ago
is your app using the db a lot?
10 months ago
bipolar db
10 months ago
nope
10 months ago
yeah!
10 months ago
i regularly do that now
10 months ago
railway pro is also
10 months ago
$20/m
10 months ago
i'll keep that in mind if my usage ever grows to $20 naturally
10 months ago
but i'm not paying just for the features
10 months ago
i fear
10 months ago
what are you hosting
10 months ago
do you not get constant random hangs, errors, and invulnerable volumes
10 months ago
and that costs you $110/m?
10 months ago
what the heck
10 months ago
that's a ton of money
10 months ago
you could get a full VPS with a decent CPU for $50/m
10 months ago
and host all of that
10 months ago
meanwhile I can't even deploy a template

10 months ago
due to
10 months ago
"unknown error"
10 months ago
tailscale subnet router
10 months ago
why 😭
10 months ago
:(
10 months ago
idk why they sobbed but looking at my bio may give a hint of why i sobbed
10 months ago
unknown error is weird tho
10 months ago
but maybe worth a separate thread if it persists
10 months ago
deployed that template now and it seems fine for me
10 months ago
you've likely hit the service count limit on the trial plan
10 months ago
Ah well
10 months ago
If I can get my mongodb usage down I’ll consider buying hobby
10 months ago
as a few people have said, that's unfortunately just the reality, mongo uses a lot of memory in comparison to Postgres
10 months ago
Yep I'm not upset
10 months ago
!s
Status changed to Solved brody • 10 months ago
