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ddl: fix create hash partition table makes tidb OOM (#16194) #16219

Merged
merged 1 commit into from
Apr 9, 2020
Merged

ddl: fix create hash partition table makes tidb OOM (#16194) #16219

merged 1 commit into from
Apr 9, 2020

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@sre-bot sre-bot commented Apr 9, 2020

cherry-pick #16194 to release-3.1

What problem does this PR solve?

Problem Summary:

CREATE TABLE employees (
    id INT NOT NULL,
    fname VARCHAR(30),
    lname VARCHAR(30),
    hired DATE NOT NULL DEFAULT '1970-01-01',
    separated DATE NOT NULL DEFAULT '9999-12-31',
    job_code INT,
    store_id INT
)

PARTITION BY HASH(store_id)
PARTITIONS 102400000000;

TiDB OOM

What is changed and how it works?

Check the partition count before create the slice.

Related changes

  • Need to cherry-pick to the release branch

Check List

Tests

  • Unit test

Release note

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sre-bot commented Apr 9, 2020

/run-all-tests

@sre-bot sre-bot mentioned this pull request Apr 9, 2020
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@sre-bot sre-bot added sig/sql-infra SIG: SQL Infra type/3.1-cherry-pick type/bugfix This PR fixes a bug. labels Apr 9, 2020
crazycs520
crazycs520 reviewed Apr 9, 2020
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LGTM

jackysp
jackysp approved these changes Apr 9, 2020
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LGTM

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jackysp commented Apr 9, 2020

/merge

@sre-bot sre-bot added the status/can-merge Indicates a PR has been approved by a committer. label Apr 9, 2020
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sre-bot commented Apr 9, 2020

/run-all-tests

@sre-bot sre-bot merged commit b210564 into pingcap:release-3.1 Apr 9, 2020
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@sre-bot @jackysp @crazycs520 @tiancaiamao