Understanding Garbage Collection

Realize my question was a bit misguided.

It looks like the compactors are running in the background, however, compaction only runs if the LSM tree needs compaction. Our application sees many duplicate writes to keys growing the value log, however, the LSM tree looks to be staying within the non-compact size. Is there a way to get discard stats updated even if the LSM tree does not need to be compacted?

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