Disk usage problem after delete mutation

[Lyiang]

My usage scenario is to store a large amount of data every day, and then find some of the data, about 99%, and execute delete

but after executing the deletion mutation, the disk usage is still increasing.

So what should I do so that the data that needs to be deleted is actually deleted from the disk?

[vnium]

Deletion of data happens during the compaction of LSM tree levels. If you are not writing enough data to trigger a level compaction, the data won’t be deleted on disk. Check out these links for further information:

• Understanding Garbage Collection - #2 by jkuki
• What triggers compactions of LSM trees in badgerDB?