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lightning: refine progress for compress files import #39219

Merged
merged 12 commits into from
Dec 2, 2022
Merged

lightning: refine progress for compress files import #39219

merged 12 commits into from
Dec 2, 2022

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lichunzhu
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What problem does this PR solve?

Issue Number: ref #38514

Problem Summary:

What is changed and how it works?

Currently lightning's progress is not accurate for compress files import. This PR uses reader's posistion to calculate progress for compressed files.

Check List

Tests

  • Manual test (add detailed scripts or steps below)
    check whether lightning progress is correct when importing compressed files.

Side effects

  • Performance regression: Consumes more CPU
  • Performance regression: Consumes more Memory
  • Breaking backward compatibility

Documentation

  • None

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

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ti-chi-bot commented Nov 18, 2022 •
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[REVIEW NOTIFICATION]

This pull request has been approved by:

  • buchuitoudegou
  • dsdashun

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. release-note-none Denotes a PR that doesn't merit a release note. size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels Nov 18, 2022
@ti-chi-bot ti-chi-bot added size/L Denotes a PR that changes 100-499 lines, ignoring generated files. and removed size/M Denotes a PR that changes 30-99 lines, ignoring generated files. labels Nov 29, 2022
@lichunzhu lichunzhu marked this pull request as ready for review November 29, 2022 09:31
@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 29, 2022
@lichunzhu lichunzhu added the component/lightning This issue is related to Lightning of TiDB. label Nov 29, 2022
buchuitoudegou
buchuitoudegou reviewed Dec 1, 2022
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br/pkg/lightning/mydump/region.go Outdated
@@ -302,7 +302,7 @@ func MakeSourceFileRegion(
// set fileSize to INF to make sure compressed files can be read until EOF. Because we can't get the exact size of the compressed files.
// TODO: update progress bar calculation for compressed files.
if fi.FileMeta.Compression != CompressionNone {
rowIDMax = fileSize * 100 / divisor // FIXME: this is not accurate. Need more tests and fix solution.
rowIDMax = fileSize * 500 / divisor // FIXME: this is not accurate. Need more tests and fix solution.
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Does 500 represent the compress ratio? Maybe leave a comment here to illustrate the number.

@ti-chi-bot ti-chi-bot added the status/LGT1 Indicates that a PR has LGTM 1. label Dec 1, 2022
dsdashun
dsdashun reviewed Dec 1, 2022
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rest LGTM

br/pkg/lightning/restore/restore.go
outLoop:
for !canDeliver {
readDurStart := time.Now()
err = cr.parser.ReadRow()
columnNames := cr.parser.Columns()
newOffset, rowID = cr.parser.Pos()
if cr.chunk.FileMeta.Compression != mydump.CompressionNone {
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If not compressed, the realOffset is not assigned and 0 is used. Is this the expected behavior ?

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Yes. Not compressed file won't use realOffset.

br/pkg/lightning/restore/restore.go Outdated
@@ -2299,6 +2299,8 @@ type deliveredKVs struct {
columns []string
offset int64
rowID int64

realOffset int64
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Maybe add some comment, indicating that realOffset is only used in compressed file scenarios.

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addressed in 32071ed

dsdashun
dsdashun approved these changes Dec 2, 2022
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LGTM

@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 Dec 2, 2022
@lichunzhu
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/merge

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

Commit hash: 32071ed

@ti-chi-bot ti-chi-bot added the status/can-merge Indicates a PR has been approved by a committer. label Dec 2, 2022
@ti-chi-bot ti-chi-bot merged commit 10b3bc7 into pingcap:master Dec 2, 2022
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sre-bot commented Dec 2, 2022

TiDB MergeCI notify

✅ Well Done! New fixed [1] after this pr merged.

CI Name Result Duration Compare with Parent commit
idc-jenkins-ci/integration-cdc-test 🔴 failed 2, success 38, total 40 24 min Existing failure
idc-jenkins-ci-tidb/common-test 🔴 failed 1, success 10, total 11 9 min 35 sec Existing failure
idc-jenkins-ci-tidb/integration-common-test ✅ all 17 tests passed 15 min Fixed
idc-jenkins-ci-tidb/tics-test 🟢 all 1 tests passed 5 min 43 sec Existing passed
idc-jenkins-ci-tidb/integration-ddl-test 🟢 all 6 tests passed 5 min 43 sec Existing passed
idc-jenkins-ci-tidb/sqllogic-test-2 🟢 all 28 tests passed 5 min 24 sec Existing passed
idc-jenkins-ci-tidb/sqllogic-test-1 🟢 all 26 tests passed 5 min 5 sec Existing passed
idc-jenkins-ci-tidb/mybatis-test 🟢 all 1 tests passed 3 min 37 sec Existing passed
idc-jenkins-ci-tidb/integration-compatibility-test 🟢 all 1 tests passed 2 min 47 sec Existing passed
idc-jenkins-ci-tidb/plugin-test 🟢 build success, plugin test success 4min Existing passed

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@buchuitoudegou buchuitoudegou buchuitoudegou approved these changes

@dsdashun dsdashun dsdashun approved these changes

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component/lightning This issue is related to Lightning of TiDB. release-note-none Denotes a PR that doesn't merit a release note. size/L Denotes a PR that changes 100-499 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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@lichunzhu @ti-chi-bot @sre-bot @dsdashun @buchuitoudegou