add recommendations options to mydumper (#828) #844
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yahonda
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Dec 27, 2021
* en, zh: bump tidb version to 4.0.8 * fix versions accidentally upgraded Co-authored-by: Ran <[email protected]>
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cherry-pick #828 to release-1.0
What problem does this PR solve?
add recommendations options to
mydumper:https://pingcap.com/docs/v3.0/how-to/maintain/backup-and-restore/#best-practices-of-full-backup-and-restoration-using-mydumper-loader
-t 16: means 16 threads are used to export the data.-F 64: means a table is partitioned into chunks and one chunk is 64MB.--skip-tz-utc: the purpose of adding this parameter is to ignore the inconsistency of time zone setting between MySQL and the data exporting machine and to disable automatic conversion.What is changed and how does it work?
Check List
Tests
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Does this PR introduce a user-facing change?: