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config: fix schedulers maybe lost after restarting #2154

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merged 2 commits into from
Feb 27, 2020

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@rleungx rleungx commented Feb 25, 2020

What problem does this PR solve?

When we enable dynamic config, if we use pd-ctl to add a scheduler, it won't update the config manager and it will be lost after restarting. It should be reviewed after #2153 is merged.

What is changed and how it works?

This PR adds a callback function to update the config manager to solve the above problem.

Check List

Tests

  • Manual test
  1. start PD
  2. add a scheduler via pd-ctl
  3. restart PD
  4. use pd-ctl config show to check

@rleungx rleungx added type/bug The issue is confirmed as a bug. component/config Configuration logic. labels Feb 25, 2020
@rleungx rleungx added this to the v4.0.0-rc milestone Feb 25, 2020
Signed-off-by: Ryan Leung <rleungx@gmail.com>
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Codecov Report

Merging #2154 into master will increase coverage by 0.22%.
The diff coverage is 67.74%.

Impacted file tree graph

@@            Coverage Diff             @@
##           master    #2154      +/-   ##
==========================================
+ Coverage   76.01%   76.24%   +0.22%     
==========================================
  Files         195      195              
  Lines       20603    20626      +23     
==========================================
+ Hits        15662    15726      +64     
+ Misses       3743     3713      -30     
+ Partials     1198     1187      -11
Impacted Files Coverage Δ
server/cluster/cluster.go 81.62% <100%> (+0.47%) ⬆️
server/cluster/coordinator.go 78.39% <100%> (+0.12%) ⬆️
server/grpc_service.go 58.15% <33.33%> (+1.07%) ⬆️
server/server.go 79.12% <62.5%> (+0.63%) ⬆️
server/config_manager/config_manager.go 79.05% <71.42%> (+2.41%) ⬆️
server/schedulers/random_merge.go 60.71% <0%> (-3.58%) ⬇️
pkg/mock/mockhbstream/mockhbstream.go 89.23% <0%> (-1.54%) ⬇️
server/config/option.go 90.04% <0%> (+0.86%) ⬆️
... and 7 more

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@shafreeck shafreeck left a comment

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LGTM

@disksing disksing removed their request for review February 27, 2020 04:18
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@overvenus overvenus left a comment

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LGTM, better to add a test though

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rleungx commented Feb 27, 2020

/run-all-tests

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rleungx commented Feb 27, 2020

/merge

@sre-bot sre-bot added the status/can-merge Indicates a PR has been approved by a committer. label Feb 27, 2020
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sre-bot commented Feb 27, 2020

/run-all-tests

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sre-bot commented Feb 27, 2020

@rleungx merge failed.

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rleungx commented Feb 27, 2020

/run-all-tests

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rleungx commented Feb 27, 2020

/build

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claassistantio commented Feb 27, 2020

CLA assistant check
All committers have signed the CLA.

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rleungx commented Feb 27, 2020

/run-all-tests

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rleungx commented Feb 27, 2020

/merge

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sre-bot commented Feb 27, 2020

/run-all-tests

@sre-bot sre-bot merged commit 0247a5d into tikv:master Feb 27, 2020
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7 participants