# Two questions/issues

**URL:** https://forums.plex.tv/t/two-questions-issues/939110
**Category:** Plex Media Server
**Tags:** server-mac
**Created:** [May 24, 2026, 10:43am UTC](https://forums.plex.tv/t/two-questions-issues/939110 "2026-05-24T10:43:31Z")
**Posts on this page:** 2
**Page:** 1

<div class="post-metadata">

### Author: ![serv2707](https://avatars.discourse-cdn.com/v4/letter/s/ea5d25/32.png) [@serv2707](https://forums.plex.tv/u/serv2707)
#### Post date: [May 24, 2026, 10:43am UTC](https://forums.plex.tv/t/two-questions-issues/939110/1 "2026-05-24T10:43:31Z")

</div>

Server Version#: 1.43.2.10687

Two questions/issues: What is the optimal size for the database cache (currently around 320,000 songs in my case)? And why does Plex miscategorize some artists—even when the ID3 tags are correct? For instance, songs by “Laster Flat” are consistently filed under “Mac Wiseman” (across all three Plex servers running here), no matter what I do.

 ![Screenshot_20260524_122842_Plexamp](https://global.discourse-cdn.com/plex/original/4X/8/7/4/874d9207f26ccdc5946edd2bc7fa2e48bef1b637.jpeg)

---

<div class="post-metadata">

### Author: ![OttoKerner](https://sea1.discourse-cdn.com/plex/user_avatar/forums.plex.tv/ottokerner/32/10079_2.png) [@OttoKerner](https://forums.plex.tv/u/OttoKerner)
#### Post date: [May 24, 2026, 3:47pm UTC](https://forums.plex.tv/t/two-questions-issues/939110/2 "2026-05-24T15:47:32Z")

</div>

> [@serv2707](#):
>
> What is the optimal size for the database cache

Start with the default (20MB), and only increment in steps of 20MB.  
And stop incrementing if the speed of the database is not improving.  
Under no circumstances should you assign Gigabytes.

See [Albums appearing with incorrect artist and unable to change it - #2 by OttoKerner](https://forums.plex.tv/t/albums-appearing-with-incorrect-artist-and-unable-to-change-it/937387/2)