On Wed, Oct 1, 2014 at 6:17 AM, Ken Hancock <ken.hanc...@schange.com> wrote:
> Major compaction is bad if you're using size-tiered, especially if you're > already having capacity issues. Once you have one huge table, with default > settings, you'll need 4x that huge table worth of storage in order for it > to compact again to ever reclaim your TTL'd data. > I agree that OP likely cannot major compact. But if he could, he could do so and then run sstablesplit (most safely, with the node down) on the One Big SSTable to avoid the problem you describe. If the OP actually has SSTables full of TTLed garbage, he should use JMX to run UserDefinedCompaction on them, one at a time. He should also probably reconsider whether a database with immutable datafiles is the ideal solution for his data he wants to keep for 7 days. ;D =Rob
