# A simple case of read compaction, 2 files in different levels with overlapping ranges define L5 a.SET.55:a b.SET.5:b L6 a.SET.54:a b.SET.4:b ---- 5: 000004:[a#55,SET-b#5,SET] 6: 000005:[a#54,SET-b#4,SET] add-read-compaction 5: a-b 000004 ---- show-read-compactions ---- (level: 5, start: a, end: b) maybe-compact ---- [JOB 100] compacted(read) L5 [000004] (784B) Score=0.00 + L6 [000005] (784B) Score=0.00 -> L6 [000006] (778B), in 1.0s (2.0s total), output rate 778B/s show-read-compactions ---- (none) version ---- 6: 000006:[a#0,SET-b#0,SET] # Check to make sure another compaction will not take place maybe-compact ---- (none) # Case where there is an in-progress flush. No compaction should occur while flushing is true. define L5 a.SET.55:a b.SET.5:b L6 a.SET.54:a b.SET.4:b ---- 5: 000004:[a#55,SET-b#5,SET] 6: 000005:[a#54,SET-b#4,SET] add-read-compaction flushing=true 5: a-b 000004 ---- show-read-compactions ---- (level: 5, start: a, end: b) maybe-compact ---- (none) show-read-compactions ---- (level: 5, start: a, end: b) version ---- 5: 000004:[a#55,SET-b#5,SET] 6: 000005:[a#54,SET-b#4,SET] add-read-compaction flushing=false ---- show-read-compactions ---- (level: 5, start: a, end: b) maybe-compact ---- [JOB 100] compacted(read) L5 [000004] (784B) Score=0.00 + L6 [000005] (784B) Score=0.00 -> L6 [000006] (778B), in 1.0s (2.0s total), output rate 778B/s show-read-compactions ---- (none) version ---- 6: 000006:[a#0,SET-b#0,SET] # Test case where there is mismatch in the level of chosen read compaction and current version. # In this case, we skip the compaction. define L5 a.SET.55:a b.SET.5:b L6 a.SET.55:a b.SET.5:b ---- 5: 000004:[a#55,SET-b#5,SET] 6: 000005:[a#55,SET-b#5,SET] add-read-compaction 4: a-b 000004 ---- show-read-compactions ---- (level: 4, start: a, end: b) maybe-compact ---- (none) show-read-compactions ---- (none) version ---- 5: 000004:[a#55,SET-b#5,SET] 6: 000005:[a#55,SET-b#5,SET] # The read compaction range overlaps with the appropriate level, but # the file number is different. # So, we skip the compaction. define L5 a.SET.55:a b.SET.5:b L6 a.SET.55:a b.SET.5:b ---- 5: 000004:[a#55,SET-b#5,SET] 6: 000005:[a#55,SET-b#5,SET] add-read-compaction 5: a-b 000003 ---- show-read-compactions ---- (level: 5, start: a, end: b) maybe-compact ---- (none) show-read-compactions ---- (none) version ---- 5: 000004:[a#55,SET-b#5,SET] 6: 000005:[a#55,SET-b#5,SET]