Hi Discourse Community! Recently I have been trying to improve the performance of my Discourse installation and clean up a little since my site has been growing exponentially lately. I have identified two issues, searched about them here but I don’t see a clear answer for some specifics, so I hop…

Mini-Update: Tried to tweak around the Unicorn Runners Settings but I don’t really know if there is a core-per-worker relation or is like a shared CPU kind of thing like CPU % x Second, is there a best practice for this? Also, have been reading about PostgreSQL to know how to get around that size b…

[圖片] Iceman: As a note we do have quite some topics with more than 10k answers , so that may be a correlation between DB Size and Performance issues? (Throwing it out, not sure). I also have some 10k+ topics, and am also seeing this message every now and then when the site is really busy.

I strongly advise you to not override the Discourse defaults, which auto-close topics with more than 10k replies. There’s a reason we have this setting on by default. :scream: Beyond that, this problem of massive post_timings table is on our radar :satellite_antenna: and we are currently brainstorm…

[圖片] codinghorror: There’s a reason we have this setting on by default. I feel like it needs a triple-confirm with the final OK button reading “I'm ok with bad things happening”. Is anyone making megatopics really work?

We have around 80 megatopics pumping the whole time (128k posts on the largest one). [圖片] FórumSCP A comunidade dos Sportinguistas dedicada ao Sporting Clube de Portugal onde se aborda o futebol, as modalidades e outros temas da actualidade leonina. Some 502 …

[圖片] Paracelsus: We have around 80 megatopics pumping the whole time (128k posts on the largest one). This is a profoundly bad idea and you should shut those topics down in favor of smaller yearly or seasonal ones. See [圖片] The MEGATOPIC: public good, or public menace…

I’ve got a site with a handful of >100K post mega topics. I told them that it was a mistake, but they wanted them anyway. They are complaining about performance issues. I’m hoping that I’ll soon be able to change the value back to the 10K default. It did cause me to learn some stuff about database …

[圖片] codinghorror: [圖片] Paracelsus: We have around 80 megatopics pumping the whole time (128k posts on the largest one). This is a profoundly bad idea and you should shut those topics down in favor of smaller yearly or seasonal ones. See The MEGATOPIC: public good, or public menace? I…

[圖片] Paracelsus: Imagine a topic about Trump in general or one about the United States in general. Imagine a category about Trump in general or the United States in general. No one is going to read >10000 posts in a topic straight through. They just aren’t. At some point, you can just take a…

[圖片] Paracelsus: Sure, it’s not impossible, but quite impracticable. OK, but my answer to this is [圖片] .. you are opting into causing yourself considerable pain here for “reasons”.

提升实例性能（热门话题、数据库大小和极端负载）

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codinghorror (Jeff Atwood) 2020年三月19日 15:34 8

这是一个非常糟糕的主意，你们应该关闭这些话题，转而采用按年度或季节划分的更小型话题。请参阅

話題		回覆	觀看
The MEGATOPIC: public good, or public menace? Community Building	41	16735	2021年四月4日
Real-time updating of topics freezes under high activity Support	89	8666	2022年二月26日
Performance improvements on long topics? Support	29	5748	2018年七月12日
Discourse installation has been getting slower and slower and slower Self-hosting server-resources	36	2048	2023年四月15日
PostgreSQL runaway IO Self-hosting	35	3542	2021年三月3日

提升实例性能（热门话题、数据库大小和极端负载）

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