Implement partitioning of LSMTree TreeSnapshot to prevent compaction

• Type: Improvement
• Resolution: Fixed
• Priority: Major
• Fix Version/s: 7.2.0
• Affects Version/s: None
• Component/s: storage-engine
• Labels:

  • approved-for-7.2.0
  • magma
  • request-dev-verify

For Gerrit Dashboard: MB-54547
#	Subject	Branch	Project	Status	CR	V
186114,2	MB-54547 magma: Validate seqno in sequence iterator history mode	neo	magma	Status: NEW	0	-1
183791,1	MB-54547 Magma: Reorganize LSMTree TreeSnapshot funtions	neo	magma	Status: ABANDONED	0	+1
183894,22	MB-54547 magma: Store timestamp extracted from meta in sstable	neo	magma	Status: MERGED	+2	+1
184028,27	MB-54547 magma: Introduce new History table state	neo	magma	Status: ABANDONED	-1	-1
184375,17	MB-54547 magma: Add history time and size window configs	neo	magma	Status: MERGED	+2	+1
184395,29	MB-54547 magma: Add history to Magma SeqIterator	neo	magma	Status: MERGED	+2	+1
184397,15	MB-54547 magma: Add GetOldestHistorySeqno to return oldest seqno with history	neo	magma	Status: ABANDONED	0	-1
185007,9	MB-54547 magma: Add GetOldestHistorySeqno to return oldest seqno with history	neo	magma	Status: MERGED	+2	+1
185377,12	MB-54547 magma: Introduce new History table state	neo	magma	Status: MERGED	+2	+1
185378,14	MB-54547 magma: Allow for retention of history based on size or time	neo	magma	Status: MERGED	+2	+1
185768,7	MB-54547 magma: Fix incorrect retention in case of history toggle	neo	magma	Status: MERGED	+2	+1
185928,3	MB-54547 magma: Rename historyStartSeqno to historyEnabledSeqno	neo	magma	Status: MERGED	+2	+1
185935,5	MB-54547 magma: Move all compaction size and trigger related functions to compaction_util.cc	neo	magma	Status: MERGED	+2	+1
185936,13	MB-54547 magma: Account for history in compaction computations	neo	magma	Status: MERGED	+2	+1
186083,7	MB-54547 magma: Add defaults for get history time callback config	neo	magma	Status: MERGED	+2	+1
186178,6	MB-54547 magma: Use isLSDDataLevel and isLSDDeltaLevel functions uniformly	neo	magma	Status: MERGED	+2	+1
186536,1	MB-54547 magma: Deprecate SeqIterator::Seek API	neo	magma	Status: ABANDONED	0	-1
186754,7	MB-55568 magma: Fix incorrect computation of level target size	neo	magma	Status: MERGED	+2	+1
187103,1	Revert "MB-54547 magma: Use isLSDDataLevel and isLSDDeltaLevel functions uniformly"	neo	magma	Status: ABANDONED	0	-1