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ha: refactor the schedule model #473

Merged
merged 125 commits into from
Feb 18, 2020
Merged

ha: refactor the schedule model #473

merged 125 commits into from
Feb 18, 2020

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csuzhangxc
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@csuzhangxc csuzhangxc commented Feb 10, 2020

What problem does this PR solve?

the HA model before this PR can't tolerate well, and can't support pause-relay/pause-task correctly.

What is changed and how it works?

rewrite the HA mode, see pkg/ha/doc.go.

Check List

Tests

  • Unit test
  • Integration test

Code changes

  • Has exported function/method change
  • Has exported variable/fields change
  • Has interface methods change
  • Has persistent data change

Side effects

  • Possible performance regression
  • Increased code complexity
  • Breaking backward compatibility

Related changes

  • Need to update the dm/dm-ansible
  • Need to be included in the release note

@csuzhangxc csuzhangxc added priority/important Major change, requires approval from ≥2 primary reviewers status/WIP This PR is still work in progress labels Feb 10, 2020
@csuzhangxc csuzhangxc changed the title ha: refactor the schedule mode ha: refactor the schedule model Feb 10, 2020
pkg/ha/doc.go Outdated Show resolved Hide resolved
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@WangXiangUSTC WangXiangUSTC left a comment

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LGTM

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@lichunzhu lichunzhu left a comment

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rest LGTM


// WatchSourceBound watches PUT & DELETE operations for the bound relationship of the specified DM-worker.
// For the DELETE operations, it returns an empty bound relationship.
func WatchSourceBound(ctx context.Context, cli *clientv3.Client,
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Shall we return error for retry?

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/run-all-tests tidb=release-3.0

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/run-all-tests tidb=release-3.0

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/run-all-tests tidb=release-3.0

@lichunzhu
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/run-all-tests tidb=release-3.0

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/run-all-tests tidb=release-3.0

lichunzhu and others added 4 commits February 18, 2020 23:07
# Conflicts:
#	_utils/terror_gen/errors_release.txt
#	dm/master/coordinator/coordinator.go
#	dm/master/election.go
#	dm/master/server.go
#	pkg/terror/error_list.go
#	tests/ha/run.sh
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/run-all-tests tidb=release-3.0

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/run-all-tests tidb=release-3.0

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/run-all-tests tidb=release-3.0

@csuzhangxc csuzhangxc merged commit 24c7693 into ha-dev Feb 18, 2020
@csuzhangxc csuzhangxc removed the status/WIP This PR is still work in progress label Feb 20, 2020
@csuzhangxc csuzhangxc deleted the ha-refactor branch February 21, 2020 08:09
lichunzhu pushed a commit to lichunzhu/dm that referenced this pull request Apr 6, 2020
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3 participants