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Backup: Inefficient memory usage in the RangeTree, when there are millions of tables. #58587

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3pointer opened this issue Dec 27, 2024 · 1 comment · Fixed by #58591
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Backup: Inefficient memory usage in the RangeTree, when there are millions of tables. #58587

3pointer opened this issue Dec 27, 2024 · 1 comment · Fixed by #58591
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affects-8.1 This bug affects the 8.1.x(LTS) versions. affects-8.5 This bug affects the 8.5.x(LTS) versions. severity/major type/bug The issue is confirmed as a bug.

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@3pointer
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Bug Report

Please answer these questions before submitting your issue. Thanks!

1. Minimal reproduce step (Required)

When using BR to back up millions of tables and statistics, memory usage becomes excessive. A significant memory spike occurs at the start of the stats dump process.
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2. What did you expect to see? (Required)

meaningful memory usage.

3. What did you see instead (Required)

Inefficient memory usage

4. What is your TiDB version? (Required)

v8.5
@3pointer 3pointer added the type/bug The issue is confirmed as a bug. label Dec 27, 2024
@3pointer
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ref to #51573.

@3pointer 3pointer mentioned this issue Dec 27, 2024
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@3pointer 3pointer added affects-8.1 This bug affects the 8.1.x(LTS) versions. affects-8.5 This bug affects the 8.5.x(LTS) versions. severity/major labels Dec 27, 2024
@ti-chi-bot ti-chi-bot bot closed this as completed in 3ac2b49 Dec 30, 2024
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affects-8.1 This bug affects the 8.1.x(LTS) versions. affects-8.5 This bug affects the 8.5.x(LTS) versions. severity/major type/bug The issue is confirmed as a bug.
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Backup: remove improper memory usage during full backup 3pointer/tidb
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@3pointer