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jdbc rangeSplitStrategy extension #914

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Paddy0523 opened this issue Jun 6, 2022 · 1 comment
Closed

jdbc rangeSplitStrategy extension #914

Paddy0523 opened this issue Jun 6, 2022 · 1 comment
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feature-request this is a feature requests on the product

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@Paddy0523
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Range slices can be read sequentially on disk if splitPk is incremented in the table. It can improve performance to some extent
1.incremental mode with parallelism >1 ,support range splitStrategy
image

2.polling mode support range splitStrategy

  • JdbcInputSplit Added splitStrategy and isPolling attributes
  • Get minValue and maxValue from splitPk in the database table, slice these data using rangeSplitStrategy first
  • Set maxValue as startLocation and start polling according to the modSplitStrategy
@Paddy0523 Paddy0523 added the feature-request this is a feature requests on the product label Jun 6, 2022
Paddy0523 added a commit to Paddy0523/chunjun that referenced this issue Jun 6, 2022
@Paddy0523
[hotfix-DTStack#914][jdbcSplit]1.incremental mode with parallelism >1…
c8636cb 
… ,support range splitStrategy 2.polling mode support range splitStrategy
Paddy0523 added a commit to Paddy0523/chunjun that referenced this issue Jun 6, 2022
@Paddy0523
[feat-DTStack#914][jdbcSplit]1.incremental mode with parallelism >1 ,…
36c8825 
…support range splitStrategy 2.polling mode support range splitStrategy
@Paddy0523 Paddy0523 mentioned this issue Jun 6, 2022
Merged
FlechazoW pushed a commit that referenced this issue Jun 6, 2022
@Paddy0523 @FlechazoW
[feat-#914][jdbcSplit]1.incremental mode with parallelism >1 ,support…
1f83cc9 
… range splitStrategy 2.polling mode support range splitStrategy
@FlechazoW
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PR merged.

yanghuaiGit pushed a commit to yanghuaiGit/chunjun that referenced this issue Jun 24, 2022
@Paddy0523
[feat-DTStack#914][jdbcSplit]1.incremental mode with parallelism >1 ,…
8856cc5 
…support range splitStrategy 2.polling mode support range splitStrategy
yanghuaiGit pushed a commit that referenced this issue Jun 24, 2022
@Paddy0523
[feat-#914][jdbcSplit]1.incremental mode with parallelism >1 ,support…
2f36a10 
… range splitStrategy 2.polling mode support range splitStrategy
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@FlechazoW @Paddy0523