a year 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
a year ago
322ea2ee-d764-421d-9d11-77dde0980f62
a year ago
This is what the observability page looks like for today

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

a year 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.
a year ago
My stupid dependencies… is Mongo not one of your most popular databases? Is this really just hope much it uses?
a year ago
Yeah, mongo is pretty popular
a year ago
So nobody can sustain a mongo database under the $5 plan, lol?
a year ago
Prob PostgreSQL, MySQL and Mongo
a year ago
Seems to be using 250 and rising, consistently

a year ago
You can enable serverless to scale it down to zero and then scale back up based on traffic
a year ago
But yeah, mongo is know for being very mem intensive, together with mysql
a year ago
I don't really see that being feasable with the amount of time a coldstart would take
a year 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
a year ago
I always recommend postgresql if the user wants lower costs
a year ago
Too late for that 😂
a year ago
I mean, that's mongodbs fault
a year ago
I suppose ¯_(ツ)_/¯
a year ago
250mb is a lot
a year ago
MongoDB took ~20 cents in one day, * 30 meaning it would be $6 for just one database
a year ago
@Loudbook this is what i mean (from <#727689277219012669>)

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

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

a year 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
a year ago
it now uses so little cpu it barely even registers on the graphs

a year ago
damn
a year ago
I’m using 0 now
a year ago
and a fraction of the RAM too
a year ago
the memory will creep back up as its used
a year ago
nvm still most of the RAM as before
a year ago
yeah
a year 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
a year ago
Well yeah, but I don't want every environment connecting to the same one
a year ago
i switched to using one on railway when mongo killed my free cluster randomly 🥲
a year ago
uh oh

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

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

a year ago
due to
a year ago
"unknown error"
a year ago
tailscale subnet router
a year ago
why 😭
a year ago
:(
a year ago
idk why they sobbed but looking at my bio may give a hint of why i sobbed
a year ago
unknown error is weird tho
a year ago
but maybe worth a separate thread if it persists
a year ago
deployed that template now and it seems fine for me
a year ago
you've likely hit the service count limit on the trial plan
a year ago
Ah well
a year ago
If I can get my mongodb usage down I’ll consider buying hobby
a year ago
as a few people have said, that's unfortunately just the reality, mongo uses a lot of memory in comparison to Postgres
a year ago
Yep I'm not upset
a year ago
!s
Status changed to Solved brody • 11 months ago
