auto clear data with ttl

I have C* 2.1.5,store some data with ttl.Reduce the gc_grace_seconds to zero. But it seems has no effect. Did I miss something? -- Ranger Tsao

Re: auto clear data with ttl

So gc_grace zero will remove tombstones without any delay after compaction. So it's possible that tombstones containing SSTs still need to be compacted. So either you can wait for compaction to happen or do a manual compaction depending on your compaction strategy. Manual compaction does have

Re: auto clear data with ttl

Thank You. I have change unchecked_tombstone_compaction to true . Major compaction will cause a big sstable ，I think is a lot good choice -- Ranger Tsao 2015-06-09 11:16 GMT+08:00 Aiman Parvaiz ai...@flipagram.com: So gc_grace zero will remove tombstones