Fix the issue that checkpoint can't parse large audit log

[lucklove]

Fix #1258

[codecov-io]

Codecov Report

Merging #1259 (2cd086e) into master (9049356) will increase coverage by 22.85%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##           master    #1259       +/-   ##
===========================================
+ Coverage   26.21%   49.06%   +22.85%     
===========================================
  Files         263      289       +26     
  Lines       18898    20852     +1954     
===========================================
+ Hits         4954    10232     +5278     
+ Misses      13172     8984     -4188     
- Partials      772     1636      +864     

Flag	Coverage Δ
cluster	38.29% <0.00%> (?)
dm	26.67% <0.00%> (?)
integrate	43.41% <0.00%> (+26.89%)	⬆️
playground	3.10% <ø> (?)
tiup	16.52% <0.00%> (-0.01%)	⬇️
unittest	22.74% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
pkg/checkpoint/checkpoint.go	72.50% <100.00%> (+20.60%)	⬆️
pkg/cluster/operation/action.go	59.31% <0.00%> (ø)
pkg/cluster/operation/check.go	0.00% <0.00%> (ø)
pkg/cluster/operation/telemetry.go	0.00% <0.00%> (ø)
components/dm/task/update_dm_meta.go	85.29% <0.00%> (ø)
components/playground/instance/tidb.go	0.00% <0.00%> (ø)
components/playground/instance/tikv_config.go	0.00% <0.00%> (ø)
pkg/cluster/operation/destroy.go	51.86% <0.00%> (ø)
components/playground/instance/tiflash.go	0.00% <0.00%> (ø)
components/playground/instance/instance.go	0.00% <0.00%> (ø)
... and 181 more

---

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[ti-chi-bot]

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• AstroProfundis

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[AstroProfundis]

/merge

[ti-chi-bot]

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

Commit hash: aeebb50