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# k3sa
adamant-kite-43734
10/26/2023, 1:17 AMThis message was deleted.
c
creamy-pencil-82913
10/26/2023, 1:25 AMwhat exactly did you specify as the datastore endpoint?
creamy-pencil-82913
10/26/2023, 1:26 AMIt looks like you just put
localhost:4222<jetstream://localhost:4222>w
worried-book-58991
10/26/2023, 1:26 AMnohup $Exec $Cmds $Opts --datastore-endpoint=<jetstream://localhost:4222> &> /dev/null &c
creamy-pencil-82913
10/26/2023, 1:27 AMhuh I don’t think that’s even valid :/
creamy-pencil-82913
10/26/2023, 1:27 AMcreamy-pencil-82913
10/26/2023, 1:27 AMthe nats stuff has been wholly contributed by synadia, but I don’t think those docs work yet
w
worried-book-58991
10/26/2023, 1:29 AMAh ok, the reference guide is where I got the method they used. Maybe something was special for their setup of NATS:
Exploring NATS as a backend for k3s | NATS blog
Copy code
# Run in the background or in the foreground in a different shell.
nats-server -js &
# Point k3s to the default NATS address.
k3s server --datastore-endpoint=<jetstream://localhost:4222>c
creamy-pencil-82913
10/26/2023, 1:31 AM1.27.3 is also a little out of date. they changed the connection string a while back: https://github.com/k3s-io/kine/pull/184
w
worried-book-58991
10/26/2023, 1:31 AMI tried
--datastore-endpoint=<nats://localhost:4222>c
creamy-pencil-82913
10/26/2023, 1:32 AMalso keep in mind that this is still broken for multi-server clusters
😲 1
creamy-pencil-82913
10/26/2023, 1:32 AMw
worried-book-58991
10/26/2023, 1:33 AMOh ok, I’ll continue with my efforts with the embedded etcd then. I was also thinking of just bringing up a MySQL datastore in podman as another option for the external datastore.
l
late-needle-80860
10/31/2023, 10:11 AM@worried-book-58991 it’s the performance of NATS you where looking for or simply “just” trying out things?
late-needle-80860
10/31/2023, 10:12 AMAsking as we run etcd … and if we can get something that’a less IOPS sensitive it would be interesting
late-needle-80860
10/31/2023, 10:17 AMDO anyone know of blog posts or other write-ups on the potential performance gains of running NATS JetStream over etcd on a HA K3s cluster?
w
worried-book-58991
10/31/2023, 6:24 PMYes that’s correct wanted something that was more performant for an embedded environment. But also something that might be more stable, I’m not sure if that is the case or not with NATS.
worried-book-58991
10/31/2023, 6:26 PMI looked here: nats bench - NATS Docs but I’m sure you already saw that since it’s been done by NATS. But one can run that benchmark themselves too.
l
late-needle-80860
10/31/2023, 7:03 PMI find etcd super super stable… that haven’t been an issue …
late-needle-80860
10/31/2023, 7:04 PMand we’ve run K3s in production for 1.5 years and prepped for that 1.5 year up to production …
late-needle-80860
10/31/2023, 7:04 PMBut, yes for the performance reason NATS JetStream might be really interesting. IF it beats out etcd.
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