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Summary: This PR adds user property collector factory `CompactForTieringCollectorFactory` to support observe SST file and mark it as need compaction for fast tracking data to the proper tier. A triggering ratio `compaction_trigger_ratio_` can be configured to achieve the following: 1) Setting the ratio to be equal to or smaller than 0 disables this collector 2) Setting the ratio to be within (0, 1] will write the number of observed eligible entries into a user property and marks a file as need-compaction when aforementioned condition is met. 3) Setting the ratio to be higher than 1 can be used to just writes the user table property, and not mark any file as need compaction. For a column family that does not enable tiering feature, even if an effective configuration is provided, this collector is still disabled. For a file that is already on the last level, this collector is also disabled. Pull Request resolved: https://github.com/facebook/rocksdb/pull/12760 Test Plan: Added unit tests Reviewed By: pdillinger Differential Revision: D58734976 Pulled By: jowlyzhang fbshipit-source-id: 6daab2c4f62b5c6689c3c03e3b3907bbbe6b7a81 |
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| .. | ||
| compact_for_tiering_collector.cc | ||
| compact_for_tiering_collector.h | ||
| compact_for_tiering_collector_test.cc | ||
| compact_on_deletion_collector.cc | ||
| compact_on_deletion_collector.h | ||
| compact_on_deletion_collector_test.cc | ||