I uploaded about 4000 tags to my forum and I am now making some edits. The nearly 4000 tags comprise the totality of tags. I am running three droplets with a load balancer, each containing 4 gigs of ram. My CPU usage is near 0, my memory is averaging 38%, and I have no traffic at all (I am still configuring and testing). At this rate, I will be configuring for a very long time because Discourse is EXTREMELY slow whilst I edit tags. Every other page within the admin area is quite fast. I only have this problem with tags. Any thoughts?

@neil you know the tag system quite well, can you do a bit of testing on local with say 10k tags to see what cracks show up.

I’m following this description of the problem: [image] Destry_Hunt: I am using tag groups. Every tag is part of a group. Each group has about five to 50 tags within it, depending. Every tag group includes a required tag parent, too. What is taking so long is the process of adding the appropriate tag parent to each tag group I tested 3 cases. In all cases, the /tags page is pretty slow due to rendering. At 4000 tags, it takes about 1 second to load. Navigating away from that page is also slow, probably because Ember is unloading all the components. 10k tags, no tag groups: no problem with tag inputs that I could see. 4k tags, one tag group per 25 tags: no problems 4k tags, one tag group per 25 tags, each tag group has a parent tag: also no problems. Performance of tag inputs seems the same as if there were a low number of tags. [4000-tags-2019-03-25_16-33] I tested inputs 1 and 2 in above screenshot, and they were fast. @Destry_Hunt Am I testing your situation or is there something else you’re doing?

You are definitely testing my situation. Did you go back to your tag groups (maybe at least 15 minutes later) to see if all of the parent tags were still present?

The parent tags are gone! I don’t see a job that would delete only the parent tags… mysterious. But back on topic, I can’t reproduce the performance problem you’re seeing.

Well, as you stated in an earlier post, the page is slow. Maybe it just feels extra slow and frustrating to me because I had to create parent tags in child groups, save, remove, then call them in the parent field. Those are a lot of steps to take on a slow page. I figured out that if I uploaded the CSV with group names matching my desired parent tags, then the parent tags would already exist–no need to create them in child groups. That seemed to help me a lot.

You mentioned thay it’s three droplets with a load balancer, can you elaborate any further on the network side of the setup? I’m assuming you aren’t using anything like Cloudflare on top?

[image] awesomerobot: Is it when you’re clicking into the parent tag input? [image] Destry_Hunt: Yes, that is when. [image] Destry_Hunt: Well, as you stated in an earlier post, the page is slow. Maybe it just feels extra slow and frustrating to me because I had to create parent tags in child groups, save, remove, then call them in the parent field. Those are a lot of steps to take on a slow page. So “Yes, that is when” means “No, it’s the /tags page”? Would need to be solved with a redesign of the /tags page when there are a large number of tags. Maybe show X most popular tags, and a search field to find more.

I just noticed that there may have been a couple questions from a few days ago that I overlooked. Let me know if any of those questions still require an answer. Regarding the architecture, I am running three droplets with a load balancer. I am not running any “space” on Digital Ocean, and therefore I am not using their CDN service (nor am I using any other CDN). I plan on adding those later. I am, however, running DNS Made Easy, but I can’t imagine that affecting anything. Regarding the droplets, they are Ubuntu web servers with 4 gigs of RAM and 80 gigs of hard drive (each). I spun all three up at the same time with a snapshot (image) that I had previously created. All three show good health. Let me know if there was anything I didn’t cover.

You’re not using Cloudflare, correct? Their implementation of brotli has done some very strange stuff in the past.

Could you open the dev console while you are editing tags. In the dev console I would want to see the network panel (filtered by xhr). If you can take a screenshot of this panel after a few requests that might give us some info.

Editing tags on tags page extremely slow

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Easiest and most straightforward starting point is to enter safe mode and disable everything. yourwebsite.com/safe-mode

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Editing tags on tags page extremely slow

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