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MemDB does not reuse free nodes #1375

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zyguan opened this issue Jul 2, 2024 · 1 comment
Open

MemDB does not reuse free nodes #1375

zyguan opened this issue Jul 2, 2024 · 1 comment
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affects-5.4 affects-6.1 affects-6.5 affects-7.1 affects-7.5 affects-8.1

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@zyguan
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zyguan commented Jul 2, 2024

MemDB cannot reuse free nodes, which may lead to mem leak in some cases. If a DML writes many keys and it has been retried multiple times due to pessimistic lock error, MemDB would re-alloc nodes for each try. Refer to the following demo code, the mem usage of allocator keeps growing.

2024-07-02_151659
@zyguan zyguan changed the title MemDB do not reuse free nodes MemDB does not reuse free nodes Jul 5, 2024
@seiya-annie
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/report customer

@you06 you06 mentioned this issue Sep 11, 2024
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