Slow Network After Installing Multiple Containers
reddit / selfhosted

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gc28 · 2023-12-05 23:01

Pretty new to docker/Linux.

**What was changed**

I have been playing around with a few software packages on my DS918+.

New Container additions: \*Arrs- Deluge- Overseerr (This was slow so
may run on a separate device) - CloudFlair Tunnels

Containers in place long term: Pi-Hole,Unifi (Wifi Controller),
HomeAssistant, Tautulli

**What happened**

Since doing this I’ve noticed a slowdown across the network, web
browsing & Plex buffering (remote & local)

I've now reverted and turned off the new containers and things look to
have improved.

I have been running Pihole for DNS for about a year with no issues.

**Why is this happening?**

[DS918+ Specs](https://imgur.com/JIyqtWl)

CPU/RAM usage has been pretty low maxed out at
[40%](https://imgur.com/LO728Wh) with 3 Plex transcodes ongoing.

I'm wondering what was to blame here:

The CloudFlair tunnels?

Or just the fact that the synology is running on SATA HDD's and it
just can't take all that disk activity?

**Solution?**

Perhaps the solution here is to get a NUC to move Plex out to?

A Raspberry Pi to run docker/containers or just an SSD Cahce for
docker?

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eroc1990 · 2023-12-05 23:33

Is Deluge actively downloading? If so, how much of your bandwidth is
it taking up? You should be able to limit how much bandwidth it uses
to free up your bandwidth.

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gc28 · 2023-12-05 23:44

Nice shout, unfortunately, Deluge was idle when these issues arose.

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thekrautboy · 2023-12-05 23:56

This is not a techsupport subreddit.

If you have issues with your Synology hardware the first place to ask
would be /r/Synology.

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eroc1990 · 2023-12-06 01:08

Stats on Pi-Hole? What are the average times for  your DNS responses?

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morbidpete84 · 2023-12-06 01:52

I would think you are beating the crap out of the array with all that
disk activity all at once. Just data spinning rust trying to run a
bunch of containers in what is pretty much a raid 5 (if using SHA)

That’s my first guess.

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gc28 · 2023-12-06 04:10

Thank you

I’ll boot everything up tomorrow then monitor the disk usage and see
what I get.

Happy to shift out the docker install to a Raspberry Pi should they I
see issues again.

I’ll also l limit each containers RAM just to see if that helps with
performance.

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lilolalu · 2023-12-06 08:51

Install Netdata and get some metric about your NIC's bandwidth usage.
Or, as a starter, install

"iftop"

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gc28 · 2023-12-06 12:26

Thank you

I installed netdata last night so hopefully it helps pinpoint any
issues 🙂

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liveyourdreamsmax · 2023-12-06 12:35

Pi hole resolving dns slowly? Doesn’t sound like a hdd/data bottleneck
if you’re hitting slowness on all network devices. Just initial
slowness or download speeds are slow the whole time?

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devilsproud666 · 2023-12-06 12:41

Typical German

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thekrautboy · 2023-12-06 13:42

Awww :(

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kmisterk · 2023-12-06 17:24

## Post Removed

Hey, gc28!

Thanks for your submission on selfhosted.

Your post has been removed due to a violation of the purpose of the
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