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 some drawbacks so please read about it. Sent from my iPhone On Jun 8, 2015, at 7:26 PM, 曹志富 cao.zh...@gmail.com wrote: 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
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 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 some drawbacks so please read about it. Sent from my iPhone On Jun 8, 2015, at 7:26 PM, 曹志富 cao.zh...@gmail.com wrote: 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
