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[HUDI-9364] Improve FileSystemView loading performance with large partitions#13247

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yihua merged 2 commits intoapache:masterfrom
the-other-tim-brown:HUDI-9364
May 2, 2025
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[HUDI-9364] Improve FileSystemView loading performance with large partitions#13247
yihua merged 2 commits intoapache:masterfrom
the-other-tim-brown:HUDI-9364

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@the-other-tim-brown the-other-tim-brown commented May 2, 2025

Change Logs

  • Reduce size of serialized File Group in FSView
  • Register the required classes for Kryo to reduce the size
  • Only compute valid instants once for MDT reader instead of per scanner

Impact

  • Reduces overhead of loading the FSView from the metadata table

Risk level (write none, low medium or high below)

Low

Documentation Update

Describe any necessary documentation update if there is any new feature, config, or user-facing change

  • The config description must be updated if new configs are added or the default value of the configs are changed
  • Any new feature or user-facing change requires updating the Hudi website. Please create a Jira ticket, attach the
    ticket number here and follow the instruction to make
    changes to the website.

Contributor's checklist

  • Read through contributor's guide
  • Change Logs and Impact were stated clearly
  • Adequate tests were added if applicable
  • CI passed

yihua
yihua reviewed May 2, 2025
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...common/src/test/java/org/apache/hudi/common/table/view/TestHoodieFileGroupSizeEstimator.java Outdated
// setup mocks
HoodieFileGroupId fileGroupId = new HoodieFileGroupId("path1", UUID.randomUUID().toString());
List<FileSlice> fileSlices = IntStream.range(1, 100).mapToObj(i -> new FileSlice(fileGroupId, "001",
new HoodieBaseFile("/tmp/" + FSUtils.makeBaseFileName("00" + i, "1-0-1", fileGroupId.getFileId())), Collections.emptyList())).collect(Collectors.toList());
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@yihua yihua May 2, 2025

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Looks like the API changes so it causes build failure.

@github-actions github-actions bot added the size:S PR with lines of changes in (10, 100] label May 2, 2025
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hudi-bot commented May 2, 2025

CI report:

Bot commands @hudi-bot supports the following commands:
  • @hudi-bot run azure re-run the last Azure build

yihua
yihua approved these changes May 2, 2025
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LGTM

@yihua yihua merged commit 6fd1463 into apache:master May 2, 2025
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@hudi-bot hudi-bot mentioned this pull request Dec 9, 2025
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