Phenomenon: Using other programs to add 10000 users and then deleting… #221
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… them, there are still users in the cache after deletion, and these users can never be deleted!, His ID was lost in rdnIdx, but the value of parentIdAndRdn. getNbChild() did not decrease. Problem discovered: In order to balance the tree, there will be multiple left and right rotations, resulting in multiple threads executing methods and confusing assignment, leading to ID loss.
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You are damn right !!! This part of the code is absolutely going to be used in a multi-threaded env, and needs some synchronisation. |
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… them, there are still users in the cache after deletion, and these users can never be deleted!, His ID was lost in rdnIdx, but the value of parentIdAndRdn. getNbChild() did not decrease.
Problem discovered: In order to balance the tree, there will be multiple left and right rotations, resulting in multiple threads executing methods and confusing assignment, leading to ID loss.