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Balance #3394

Merged
merged 7 commits into from
Dec 29, 2021
Merged

Balance #3394

merged 7 commits into from
Dec 29, 2021

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liwenhui-soul
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@liwenhui-soul liwenhui-soul commented Dec 2, 2021

What type of PR is this?

  • bug
  • feature
  • enhancement

What does this PR do?

Which issue(s)/PR(s) this PR relates to?

#3169
#3432

Special notes for your reviewer, ex. impact of this fix, etc:

Additional context:

Checklist:

  • Documentation affected (Please add the label if documentation needs to be modified.)
    https://confluence.nebula-graph.io/pages/viewpage.action?pageId=10729589
  • Incompatible (If it is incompatible, please describe it and add corresponding label.)
  • Need to cherry-pick (If need to cherry-pick to some branches, please label the destination version(s).)
  • Performance impacted: Consumes more CPU/Memory

Release notes:

Please confirm whether to reflect in release notes and how to describe:

                                                            `

@wenhaocs
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Can you put description of this PR at the beginning?
As a general rule, we may put:

  • Problem
  • Steps to solve this problem
  • What this PR achieves (in the steps above)

A clear description is as important as code.

Thank you

@liwenhui-soul liwenhui-soul added doc affected PR: improvements or additions to documentation incompatible PR: incompatible with the recently released version labels Dec 15, 2021
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codecov-commenter commented Dec 15, 2021

Codecov Report

Merging #3394 (9277195) into master (99f1f7a) will decrease coverage by 0.06%.
The diff coverage is 81.75%.

Impacted file tree graph

@@            Coverage Diff             @@
##           master    #3394      +/-   ##
==========================================
- Coverage   85.19%   85.13%   -0.07%     
==========================================
  Files        1304     1315      +11     
  Lines      121308   121302       -6     
==========================================
- Hits       103352   103265      -87     
- Misses      17956    18037      +81     
Impacted Files Coverage Δ
src/clients/meta/MetaClient.h 95.65% <ø> (ø)
src/clients/storage/StorageClient.h 100.00% <ø> (ø)
src/clients/storage/StorageClientBase-inl.h 74.09% <ø> (+1.41%) ⬆️
src/graph/executor/Executor.cpp 83.23% <0.00%> (-0.51%) ⬇️
src/graph/executor/admin/SpaceExecutor.cpp 80.57% <0.00%> (-5.94%) ⬇️
src/graph/executor/admin/SpaceExecutor.h 85.71% <0.00%> (-14.29%) ⬇️
src/graph/planner/plan/Admin.h 65.01% <0.00%> (-1.66%) ⬇️
src/graph/planner/plan/PlanNode.cpp 82.30% <0.00%> (-0.47%) ⬇️
src/graph/planner/plan/PlanNode.h 81.25% <ø> (ø)
src/graph/service/PermissionCheck.cpp 78.72% <ø> (ø)
... and 85 more

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Half is done so far. Could you add more essential comments across files to help facilitate review and future reading from peers? Thank you!

src/meta/processors/job/BalanceJobExecutor.cpp Outdated Show resolved Hide resolved
src/meta/processors/job/BalanceJobExecutor.cpp Outdated Show resolved Hide resolved
src/meta/processors/job/BalanceJobExecutor.cpp Outdated Show resolved Hide resolved
src/meta/processors/job/BalanceJobExecutor.cpp Outdated Show resolved Hide resolved
src/meta/processors/job/BalanceJobExecutor.cpp Outdated Show resolved Hide resolved
src/meta/processors/job/BalanceJobExecutor.cpp Outdated Show resolved Hide resolved
src/meta/processors/job/BalanceJobExecutor.cpp Outdated Show resolved Hide resolved
sortedHosts.front()->parts_.emplace(partId);
zone->partNum_++;
HostAddr ha = sortedHosts.front()->ha_;
for (size_t i = 0; i < sortedHosts.size() - 1; i++) {
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Why don't you loop the sorted hosts and find the first host which meets:
sortedHosts[i]->parts_.size() < sortedHosts[i + 1]
to avoid swap?

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Why don't you loop the sorted hosts and find the first host which meets: sortedHosts[i]->parts_.size() < sortedHosts[i + 1] to avoid swap?

swap pointers is not performance sensitive and it's easy to understand

for (; newLeftIndex < leftEnd - 1; newLeftIndex++) {
if (sortedActiveZones[newLeftIndex]->partNum_ >
sortedActiveZones[newLeftIndex + 1]->partNum_) {
std::swap(sortedActiveZones[newLeftIndex], sortedActiveZones[newLeftIndex + 1]);
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the same, why not pick the right zone to insert to avoid swap?

src/meta/processors/job/BalanceJobExecutor.cpp Outdated Show resolved Hide resolved
critical27
critical27 previously approved these changes Dec 24, 2021
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LGTM now, great work~

wenhaocs
wenhaocs previously approved these changes Dec 24, 2021
critical27
critical27 previously approved these changes Dec 27, 2021
critical27
critical27 previously approved these changes Dec 28, 2021
src/meta/processors/job/BalanceJobExecutor.h Show resolved Hide resolved
src/meta/processors/job/BalancePlan.cpp Show resolved Hide resolved
nebula::kvstore::KVStore* kvStore_{nullptr};
AdminClient* adminClient_{nullptr};

std::mutex muReportFinish_;
std::mutex muJobFinished_;
std::atomic<JbmgrStatus> status_ = JbmgrStatus::NOT_START;
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good job


/* first, move the lostZones' parts to the active zones
* second, make balance for the active zones */
Status ZoneBalanceJobExecutor::buildBalancePlan() {
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Good to see comments added!

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@pengweisong pengweisong left a comment

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LGTM

@CPWstatic CPWstatic merged commit 62d8787 into vesoft-inc:master Dec 29, 2021
@cooper-lzy cooper-lzy self-requested a review January 5, 2022 03:03
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9 participants