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dm-relay: create binlog reader from relay, refactor relay #3327

Merged
merged 37 commits into from
Nov 15, 2021
Merged

dm-relay: create binlog reader from relay, refactor relay #3327

merged 37 commits into from
Nov 15, 2021

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D3Hunter
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@D3Hunter D3Hunter commented Nov 8, 2021 •
edited by lance6716
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What problem does this PR solve?

part 2 of subtask 4 in #2214 of DM

i ever thought to split this pr, but it's too late after fixing all the test cases.

What is changed and how it works?

  • relay writer shouldn't be used concurrently and it's not a service, so remove unnecessary lock(except some status) and stage state
  • remove unnecessary stage in binlog writer; reuse the same binlog writer in relay writer
  • reuse relay writer in relay
  • move recover logic from relay writer to relay
  • remove unnecessary connection kill logic(already resolved in this pr, and current used version contains it)
  • binlog reader created using relay; register listeners implicitly
  • remove the transformer entity, make it a method in relay

Check List

Tests

  • Unit test
  • Integration test

Release note 

`None`.

D3Hunter added 18 commits November 5, 2021 18:22
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ti-chi-bot commented Nov 8, 2021 •
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[REVIEW NOTIFICATION]

This pull request has been approved by:

  • lance6716
  • lichunzhu

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

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@ti-chi-bot ti-chi-bot added do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. do-not-merge/release-note-label-needed Indicates that a PR should not merge because it's missing one of the release note labels. contribution This PR is from a community contributor. size/XXL Denotes a PR that changes 1000+ lines, ignoring generated files. labels Nov 8, 2021
@D3Hunter D3Hunter marked this pull request as ready for review November 8, 2021 07:03
@ti-chi-bot ti-chi-bot removed the do-not-merge/work-in-progress Indicates that a PR should not merge because it is a work in progress. label Nov 8, 2021
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D3Hunter commented Nov 8, 2021

/cc @lichunzhu

@ti-chi-bot ti-chi-bot requested a review from lichunzhu November 8, 2021 07:03
@lichunzhu lichunzhu added the area/dm Issues or PRs related to DM. label Nov 8, 2021
@ti-chi-bot ti-chi-bot added the release-note-none Denotes a PR that doesn't merit a release note. label Nov 10, 2021
lichunzhu
lichunzhu approved these changes Nov 11, 2021
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lgtm

@ti-chi-bot ti-chi-bot added the status/LGT1 Indicates that a PR has LGTM 1. label Nov 11, 2021
lance6716
lance6716 reviewed Nov 12, 2021
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rest lgtm, please address existing comments

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@lance6716 PTAL

@ti-chi-bot ti-chi-bot added status/LGT2 Indicates that a PR has LGTM 2. and removed status/LGT1 Indicates that a PR has LGTM 1. labels Nov 15, 2021
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/merge

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This pull request has been accepted and is ready to merge.

Commit hash: c617888

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Nov 15, 2021
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/run-kafka-integration-test

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/run-kafka-integration-test

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/run-kafka-integration-test

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/run-leak-test

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/run-dm-compatibility-test
/run-dm-integration-test
/run-kafka-integration-test

@ti-chi-bot ti-chi-bot merged commit c1a8fa2 into pingcap:master Nov 15, 2021
@D3Hunter D3Hunter deleted the refactor-relay branch November 16, 2021 02:09
@D3Hunter D3Hunter added this to the v5.4.0 milestone Jan 13, 2022
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@lance6716 lance6716 lance6716 approved these changes

@lichunzhu lichunzhu lichunzhu approved these changes

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area/dm Issues or PRs related to DM. contribution This PR is from a community contributor. release-note-none Denotes a PR that doesn't merit a release note. size/XXL Denotes a PR that changes 1000+ lines, ignoring generated files. status/can-merge Indicates a PR has been approved by a committer. status/LGT2 Indicates that a PR has LGTM 2.
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