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feat concurrent chunk data #1398

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@shaohk shaohk commented Mar 15, 2024

Description

This PR Supports concurrent copying of chunk blocks during each time slice of copying the existing data.

In case this PR introduced Go code changes:

  • contributed code is using same conventions as original code
  • script/cibuild returns with no formatting errors, build errors or unit test errors.

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shaohk commented Mar 19, 2024

MySQL insert ... select ... does not permit concurrent.

https://dev.mysql.com/doc/refman/5.7/en/insert-select.html

@shaohk shaohk closed this Mar 19, 2024
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shaohk commented Mar 20, 2024

When the unique index used for copying blocks includes an auto-increment column, concurrency is blocked on the auto-inc lock. If the unique index used does not include an auto-increment column, concurrency can proceed.

@shaohk shaohk reopened this Mar 20, 2024
@shaohk shaohk changed the title Feat parallel chunk data feat concurrent chunk data Mar 20, 2024
@ramshad-sha ramshad-sha mentioned this pull request Mar 25, 2024
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