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Requirement Request: Record More Execution Information in Statement #562

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crazycs520 opened this issue May 28, 2020 · 1 comment
Closed

Requirement Request: Record More Execution Information in Statement #562

crazycs520 opened this issue May 28, 2020 · 1 comment
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status/discussion type/feature-request

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@crazycs520
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crazycs520 commented May 28, 2020 •
edited by breezewish
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Description

Related projects: TiDB, TiKV

Record more execution information, such as:

  • The execution time and # of iterations of each TiDB & TiKV executor (with quantiles)
  • RocksDB internal scanned keys, skipped keys
  • RocksDB # of block-cache read
  • RocksDB # of block read
  • RocksDB block read bytes

Category

  • Feature
  • Usability

Value

According to our experience internal RocksDB metrics and per-executor metrics are very helpful in diagnosing problems, which is missing now.

  • Score: 4

Workload Estimation

15 Person Day
@crazycs520 crazycs520 changed the title record more information in slow log record more execution information in slow log May 28, 2020
@crazycs520 crazycs520 changed the title record more execution information in slow log record more execution information in statement May 28, 2020
@breezewish breezewish changed the title record more execution information in statement Requirement Request: record more execution information in statement May 28, 2020
@breezewish breezewish changed the title Requirement Request: record more execution information in statement Requirement Request: Record More Execution Information in Statement May 28, 2020
@crazycs520 crazycs520 mentioned this issue May 28, 2020
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@breezewish
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Related: pingcap/tidb#17689

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@breezewish @crazycs520