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config: adding [tidb] max-allowed-packet config #248

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merged 1 commit into from
Nov 20, 2019
Merged

config: adding [tidb] max-allowed-packet config #248

merged 1 commit into from
Nov 20, 2019

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kennytm
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@kennytm kennytm commented Nov 19, 2019

this allows sending rows > 4 MiB when using TiDB backend

What problem does this PR solve?

Expose the maxAllowedPacket DSN parameter to tidb-lightning.toml (perhaps we should just accept arbitrary DSNs 🤷‍♂)

What is changed and how it works?

  • Accept the [tidb] max-allowed-packet = 67_108_864 config.
  • When constructing the DSN to TiDB, include this value into the parameters.

Check List

Tests

  • Unit test

Side effects

Related changes

  • Need to update the documentation (document the new config)
  • Need to update the tidb-ansible repository (add the new config to the templates)
  • Need to be included in the release note (?)

@kennytm kennytm added Should Update Docs Should update docs after this PR is merged. Remove this label once the docs are updated Should Update Ansible The config in TiDB-Ansible should be updated labels Nov 19, 2019
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config: adding [tidb] max-allowed-packet config
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this allows sending rows > 4 MiB when using TiDB backend
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kennytm commented Nov 19, 2019

/run-all-tests

@kennytm kennytm added status/PTAL This PR is ready for review. Add this label back after committing new changes type/enhancement Performance improvement or refactoring labels Nov 19, 2019
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kennytm commented Nov 19, 2019

PTAL @3pointer @GregoryIan

@kennytm kennytm added status/LGT1 One reviewer already commented LGTM (LGTM1) and removed status/PTAL This PR is ready for review. Add this label back after committing new changes labels Nov 19, 2019
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LGTM

@WangXiangUSTC WangXiangUSTC added status/LGT2 Two reviewers already commented LGTM, ready for merge (LGTM2) and removed status/LGT1 One reviewer already commented LGTM (LGTM1) labels Nov 20, 2019
@kennytm kennytm merged commit 605760d into master Nov 20, 2019
@kennytm kennytm deleted the kennytm/max-allowed-packets branch November 20, 2019 08:25
@kennytm kennytm removed the Should Update Docs Should update docs after this PR is merged. Remove this label once the docs are updated label Dec 7, 2019
@kennytm kennytm mentioned this pull request Dec 7, 2019
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@anotherrachel anotherrachel mentioned this pull request Jan 14, 2020
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@3pointer 3pointer 3pointer approved these changes

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Should Update Ansible The config in TiDB-Ansible should be updated status/LGT2 Two reviewers already commented LGTM, ready for merge (LGTM2) type/enhancement Performance improvement or refactoring
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@kennytm @WangXiangUSTC @3pointer