For about 6TB of total data size with a replication factor of 2 (6TB x 2) on a five node cluster, I see about 4.6 TB on one machine (due to potential past problems with other machines). The machine has a disk of 6TB.
The data folder on this machine has 59,289 files totally 4.6 TB. The files are the data, filter and indexes. I see that anti-compaction is running. I applied a recent patch which does not do anti-compaction if disk space is limited. I still see it happening. I have also called nodetool loadbalance on this machine. Seems like it will run out of disk space anyway. The machine diskspace consumed are: (Each machine has a 6TB hard-drive on RAID). Machine Space Consumed M1 4.47 TB M2 2.93 TB M3 1.83 GB M4 56.19 GB M5 398.01 GB How can I force M1 to immediately move its load to M3 and M4 for instance (or any other machine). The nodetool move command moves all data, is there a way instead to force move 50% of data to M3 and the remaining 50% to M4 and resume anti-compaction after the move? Thanks, Shiv