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etcd/client(ticdc): add retry operation for etcd transaction api (#4248) (#4474) #4531

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merged 2 commits into from
Feb 25, 2022
Merged

etcd/client(ticdc): add retry operation for etcd transaction api (#4248) (#4474) #4531

merged 2 commits into from
Feb 25, 2022

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This is an automated cherry-pick of #4474

What problem does this PR solve?

Issue Number: close #4248

What is changed and how it works?

  1. Add retry strategy for etcd transaction, which uniformly handles errors related to etcd transactions and only throws errors that are not retryable, such as context.Canceled, context.DeadlineExceeded, errors.ErrReachMaxTry.
  2. Catch all of the EtcdError in the etcd_worker and retry the Txn operation again to prevent the cdc process from exiting abnormally.
  3. When the connection between cdc and etcd is abnormal, session will be responsible for disconnecting and throwing ErrEtcdSessionDone error, which causes the capture to automatically recover after suicide.

Check List

Tests

  • Unit test

Code changes

  • Has exported function/method change
  • Has exported variable/fields change

Side effects

  • Possible performance regression
  • Increased code complexity

Related changes

  • Need to cherry-pick to the release branch

Release note 

Fix a bug that owner exits abnormally when PD leader is killed

@ti-chi-bot ti-chi-bot added do-not-merge/cherry-pick-not-approved release-note Denotes a PR that will be considered when it comes time to generate release notes. component/owner Owner component. size/L Denotes a PR that changes 100-499 lines, ignoring generated files. status/LGT2 Indicates that a PR has LGTM 2. type/bugfix This PR fixes a bug. type/cherry-pick-for-release-5.2 This PR is cherry-picked to release-5.2 from a source PR. labels Feb 8, 2022
@ti-chi-bot ti-chi-bot mentioned this pull request Feb 8, 2022
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[REVIEW NOTIFICATION]

This pull request has not been approved.

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@ti-chi-bot ti-chi-bot added size/XXL Denotes a PR that changes 1000+ lines, ignoring generated files. and removed size/L Denotes a PR that changes 100-499 lines, ignoring generated files. labels Feb 8, 2022
@overvenus overvenus added this to the v5.2.4 milestone Feb 23, 2022
@VelocityLight VelocityLight added cherry-pick-approved Cherry pick PR approved by release team. and removed do-not-merge/cherry-pick-not-approved labels Feb 23, 2022
@ti-chi-bot ti-chi-bot added size/XL Denotes a PR that changes 500-999 lines, ignoring generated files. and removed size/XXL Denotes a PR that changes 1000+ lines, ignoring generated files. labels Feb 24, 2022
@CharlesCheung96
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/run-all-tests

@CharlesCheung96
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/run-all-tests

@CharlesCheung96
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/run-all-tests

@amyangfei
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/merge

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

Commit hash: 74ba68b

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Feb 25, 2022
@CharlesCheung96
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/run-kafka-integration-tests
/run-integration-tests

@ti-chi-bot ti-chi-bot merged commit 3441303 into pingcap:release-5.2 Feb 25, 2022
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cherry-pick-approved Cherry pick PR approved by release team. component/owner Owner component. release-note Denotes a PR that will be considered when it comes time to generate release notes. size/XL Denotes a PR that changes 500-999 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. type/bugfix This PR fixes a bug. type/cherry-pick-for-release-5.2 This PR is cherry-picked to release-5.2 from a source PR.
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