After rebalance and cleanup I have leveled CF (SSTable size = 100MB) and a compaction Task that is going to process ~750GB:
> root@da1-node1:~# nodetool compactionstats pending tasks: 10556 compaction type keyspace column family completed total unit progress Compaction cafs_chunks chunks 41015024065 808740269082 bytes 5.07% I have no space for this operation, I have 300 Gb only. Is it possible to resolve this situation?