Re: Cassandra 3.11.0 compaction attempting impossible to complete compactions

[kurt greaves]

I believe that's the decompressed data size, so if your data is heavily
compressed it might be perfectly logical for you to be doing such large
compactions. Worth checking what SSTables are included in the compaction.
If you've been running STCS for a while you probably just have a few very
large SSTables being compacted together.​