Hey everyone. I need to sync a stagenet node in userspace on limited RAM (<2GB) on a machine with 192 GB of RAM. I set 'ulimit -v 1572864' as it looks like DEFAULT_MAPSIZE is 1GB (lmdb/db_lmdb.h). Even syncing with '--max-concurrency 1' though results in allocation errors: 'Exception at [add_new_block], what=std::bad_alloc'. Is it just not possible to sync on this ram size, or is this something about the system resources being autodetect

ed and ulimit not being respected?

/msg NickServ VERIFY REGISTER ruien Y8Cfz7COFPRL31SH

oops

ooops

LMDB will need loads of virtual memory. Don't constrain it.

At least as much as the db size, so... 128 GB or so ?

That makes sense. Actually I don't want/need to constrain virtual memory; I really just want to constrain RSS. Something like "operate as if this machine had 2GB or 4GB instead of 192 GB". But maybe this is not feasible at all.

Maybe look into cgroups.

yes, I think cgroup v2 has something for this, but I was hoping to do it entirely in userspace. Guess not.

Thanks for the response though - i appreciate it.

There are options to tell lmdb to flush often. --db-sync-mode IIRC. It'll slow things down though.

But it *should* cut down on RSS a bit I think. YMMV.

Slow is no problem here, so I'll look into that as well.

Running in docker/podman might also add some easy to use memory constraints.

'--db-sync-mode fastest:sync:20blocks' is looking really good

funny. I've never seen my own ping timeout before: (15:13:57) hyc left the room (quit: Ping timeout: 240 seconds).

That happens when someone sees you ping out, quickly joins with your nick and says something outrageous quick before you come back.

uhhhhh. ok. would def have to be quick

So... you're not really planning on a patch to use leveldb in monerod then ?

There was something in that which I found a bit odd, but I couldn't quite put my finger on it...

gag.....

where can I find raw historical data for monero v bitcoin prices? I can google "price monero bitcoin" and get nice charts. but where does the data originate?

coingecko lets you download CSVs of their data

saunders: It must ultimately come from exchnage services.

s/hage/ange/

my monero node synced up to within like 100 blocks of being fully synced, but it's kind of stuck here. sometimes it's 70 blocks behind, then 100, then 80...anyone experience that?

it's been hanging out like this for a few days now

maybe that's normal, I don't know

noex, try exiting the daemon and restarting it

Mochi102: is ctrl-c safe?

oh wait i detacted it

detached*

can i just kill it?

going to run it in tmux and not detach this time

SIGTERM should be safe, alternatively you can try `monerod exit`

(SIGTERM is the default when you kill with no specific signal)

don't kill -9

it wasn't happy about exit

what happened?

Error: Daemon did not stop-- rpc_request:

i just tried it and it worked as expected

interesting. maybe your default RPC port is restricted? does that ring a bell?

oh yeah, i did set that

that would do it

i'm trying to run a public node

and i have no idea what i'm doing lol

so then just kill <pid>, no other arguments

alright that worked

maybe i should share my config as a sanity check

i might be doing something really stupid

i suppose i could also use a configuration file, at least I think...but I ran it like this

Wow, I screwed up my regex earlier.

I came back to this window *just* in time to notice.

noex: looks mostly ok

i think rate limits are in KB, so unless i'm mistaken yours are both set to 1GByte/sec

so the only reason I added that is because some page somewhere mentioned that the default limits were really low

but I guess I can just try running without that

a couple of the other options are superfluous, since the values are the same as the defaults

yeah, i was trying to be explicit...probably no point really though.

i think the defaults are 2048KB/s

the ports and bind ips i think are defaults

if you prefer to have them explicit, that's fine. just pointing it out

i'm not sure if --rpc-login makes sense in conjunction with --public-node and/or --restricted-rpc?

sure, i appreciate it. i might just get rid of them now that i kinda know what the ports are anyway

yeah that part confused me a bit

if you want anyone to be able to use your node's RPC, you wouldn't want --rpc-login

lol

that...makes a bit of sense

but if you don't, you wouldn't want to set --public-node at all, and probably not --restricted-rpc either since it's secured by the login

i definitely wanted a public node

also note that the bandwidth limits apply only to P2P, not RPC, last i checked

RPC is always unlimited, i think, and can use quite a lot depending on clients

i just got rid of those limits. some blog or something said to add it but I guess if it's not broken there's no sense in preemtively fixing it

looks like the defaults are 1MB/s, not 2 like i said earlier

but again, that only applies to P2P i'm pretty sure

the documentation in one place says CPU mining is fine and somewhere else says people use GPUs and not CPUs

GPUs are not useful for mining Monero, only (some) CPUs

that's what i thought

if something says use GPUs, it's probably outdated, from before 2019 (when a different PoW was used)

ohh. yeah it says "Be advised though that real mining happens in pools and with high-end GPU-s instead of CPU-s."

i was hoping to CPU mine on another machine as well

is it actually not hopeless like every other crypto? lol

well, that depends on your CPU :)

my ryzen 3600 recently became unprofitable, like within the past couple of months

3900X is still in the green i would imagine

i have a xeon w-11955m

--public-node is enabled, but RPC server 127.0.0.1:18081 may be unreachable from outside, please check RPC server bind address

^ this message is confusing

How is it confusing?

i don't get why it needs a bind address other than localhost

hm, i guess you need to specify --rpc-bind-ip

seems like it should be implied with --public-node

well, if it's only reachable from localhost, that's not very public now is it? :)

isn't that the purpose of port forwarding?

port forwarding from where? your router?

yeah

that won't work unless your router is on the local host

What if you have multiple IP addresses?

in which case... you don't need forwarding, heh

I don't recall my specific Ryzen CPU model.

Probably want to bind to one.

if you have multiple IP addresses, you can pick one to bind to, or you can bind to 0.0.0.0 which means all of them

^^

all...local ips?

ndorf: Whether a 3900 is still profitable depends (in part) on the price of electricity where you live.

well yeah.

In Denmark, it's probably not profitable.

i don't get the difference between binding to the local ip and using 127.0.0.1

That's my guess, anyway.

if you bind to 127.0.0.1, it's only reachable from the same host.

your router won't be able to reach it.

it wouldn't be able to reach it anyway if i didn't forward the port to it

the router can't forward ports to it because it can't reach it

how can my router not reach a local machine on my network

because it's not listening on the network, it's only listening on localhost.

so i just have to hardcode the machine's IP address?

you can do that, or you can use 0.0.0.0 which means listen on all its IP addresses

or like ip link | grep | cut ?

okay

so by default it won't listen to anything but itself

correct

this is 100x better in interactive mode. i didn't realize it had a cli interface.

yeah, you can run that in tmux or something

it seems to block and awful lot of hosts

yup

why does that happen?

it's a dangerous world out there

just malicous stuff in the wild

yep

ndorf: 3900X makes around £0.50 a day in current network conditions. think it costs me around £0.60 in electricity to run at full load for a day though :$

oof.

i might have killed it. i typed "check_blockchain_pruning" just experimenting and it's been frozen ever since.

the kernel is using a bunch of CPU but not monerod. what have I done?

i don't actually know what that command does but if it's reading the whole blockchain, that could explain it (kernel is doing the I/O)

it also is ignoring SIGTERM

i dug my grave, and now i will lay in it

s/lay/lie/

Lay should be used as a transitive verb.

When you need the intransitive, use lie.

i find it's easier to just lie all the time.

i dug my grave, now i'm going to lay in it and tell lies

"bitcoin cash is the real bitcoin"

noex: you tell 'em

kidding. also i kind of wish it was at this point.

bitcoin is such a bizarre phenomenon

i've kind of given up on at at least for what it was designed for. i feel like monero is closer in line with the original vision.

ah pruning check done. it says it's all good. nice

bitcoin is a deflationary asset while monero is inflationary. don't ask me to explain that, because I don't quite know what means. I can say that bitcoin is analogous to "e-gold" because of the finite number of coins.

i don't think that is what satoshi intended at all, but you are definitely right. i think the fact that it is slow/expensive to use compounds the problem.

like i no longer feel okay buying normal things with bitcoin

i don't know if other coins now level the playing field with the algorithm (ASIC-resistant) but i feel like that is definitely the right choice.

saunders: Whether Monero is inflationary or deflationary actually depends on how much of it will get lost.

noex: Monero basically solves all the biggest problems BTC has as a currency.

I don't recally refer to "Bitcoin" any longer. Doing so means taking sides in the split. I just refer to BTC as BTC, and BCH as BCH or Bitcoin Cash.

. . . though if I had to pick one to survive, it'd probably have to be BCH.

i thought that too. if you think about it logically, how can this be sustainable? it makes no sense.

I guess I sometimes refer to "Bitcoin" when what I mean is what Satoshi made, no longer than after the final Great Vanishing.

Yeah, BTC seems to be trying to make itself suck as a currency and "solve" the problem by coming up with excuses meant to sway people who stopped believing.

what satoshi wrote and what we have now are just so at odds with each other it's comical

LN isn't a solution: it's an excuse.

noex: Speak for yourself. I'm using Monero.

That's pretty close.

Well, in theory I'm using Monero. I seem to have lost mine on a recent oceanic vacation.

it is way closer and even improves on it imo. i don't think anyone had the foresight to predict something like Bitmain

I've gotta go do some writing. Ta.

looking at what crypto has become is crazy. dogecoin? it's just like a big meme at this point. my buddy bought a bunch of SHIB hoping to "get rich".

it's more like a lottery. i wish i had stumbled across monero sooner because it just seems like what we actually wanted in the first place.

dpaste.com/C337UAW4Z same problem. i'm falling further behind while syncing

it synced fine up to ~100 blocks behind but once I got here it's been stuck for a couple days