Monday, July 21, 2025

Spotlight Indexing Running Wild

Jenny Zeng (via John Gordon):

Several users have reported a bug on macOS Sequoia regarding Spotlight indexing writing a huge amount of data. Consequently, they are experiencing a large System Data on Mac and rapid SSD wear.

She recommends deleting /.Spotlight-V100 and ~/Library/Metadata/CoreSpotlight. I’ve always use mdutil to reset Spotlight, but I’ve now seen several people recommend that deleting the folders works better.

To prevent Spotlight runs wild on indexing again, you can stop it from indexing your internal disk with the following steps.

Previously:

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I found where it just stops showing applications. It's as if the index breaks. I don't understand searching for application is one of those common things, how can this even break?


My understanding is that some Time Machine processes at least require Spotlight to be enabled on the internal drive, meaning that users who disable Spotlight wholesale might get more than they bargained for.

Old notes of mine state that disabling Spotlight on the internal drive while using Time Machine may result in Spotlight being forced back on by macOS for its own purposes, but that may be complete nonsense.

Does anyone have any insights on how Time Machine and Spotlight interact?

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