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Restore should scatter new created empty tables #57596

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3pointer opened this issue Nov 21, 2024 · 0 comments · May be fixed by #57715
Open

Restore should scatter new created empty tables #57596

3pointer opened this issue Nov 21, 2024 · 0 comments · May be fixed by #57715
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affects-6.5 This bug affects the 6.5.x(LTS) versions. component/br This issue is related to BR of TiDB. report/customer Customers have encountered this bug. type/enhancement The issue or PR belongs to an enhancement.

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@3pointer
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Enhancement

Context: #55184

Starting from TiDB v8.4, the tidb_scatter_region variable supports global scope region scattering. To take advantage of this feature, BR should set this variable to global before creating tables.

Without this configuration, empty tables will not be scattered across the cluster and may instead concentrate on a few TiKV nodes. This uneven distribution increases the likelihood of triggering hotspot issues.
@3pointer 3pointer added type/enhancement The issue or PR belongs to an enhancement. component/br This issue is related to BR of TiDB. labels Nov 21, 2024
@3pointer 3pointer linked a pull request Nov 26, 2024 that will close this issue
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@ti-chi-bot ti-chi-bot bot added affects-6.5 This bug affects the 6.5.x(LTS) versions. report/customer Customers have encountered this bug. labels Nov 27, 2024
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affects-6.5 This bug affects the 6.5.x(LTS) versions. component/br This issue is related to BR of TiDB. report/customer Customers have encountered this bug. type/enhancement The issue or PR belongs to an enhancement.
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restore: set tidb_scatter_region to global before tables creation 3pointer/tidb
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