ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,411,828, issued on Sept. 9, was assigned to Redis Ltd. (Tel-Aviv, Israel).
"LSM hybrid compaction" was invented by Yechiel Yochai (Kohav Yair, Israel).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method for log-structured merge (LSM) tree compaction, the method includes (i) performing partial compaction processes. Each partial compaction process is associated with a target layer. Different partial compaction processes that are associated with a same target layer are allocated to different non-overlapping key ranges of the target layer. Some of the partial compaction processes are associated with a target layer that is a last layer of the LSM tree."...