B+Tree Index Concurrency Control and Latch Crabbing
Concurrency Strategy in B+Trees
Implementing thread safety in a B+Tree index requires protecting both the internal data of nodes and the structural integrity during split and merge operations. The standard protocol for this is Latch Crabbing, where a thread acquires a latch on a child node and only releases the latch on the parent if the child ...
Posted on Wed, 13 May 2026 03:39:59 +0000 by CUatTHEFINISH