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                                            Athi2019rit

in memory issue and does block cache data has lifetime ?

> A block stays in block cache until evicted by LRU. So even the expired entries from sst files are removed during compaction. The cache still holds the value until...

in memory issue and does block cache data has lifetime ?

> SST file lookups are not particularly fast. You could try row cache to bypass SST file lookups. It'll use more memory though. Yes, but read happens from block cache...