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feat: localCheckpoints + docs #662

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SemyonSinchenko
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What changes were proposed in this pull request?

  • optional configuration to use localCheckpoint instead of checkpoint or parquet
  • updated tests
  • new documentation page with GraphFrames configurations
  • small updates and fixes in docs

Why are the changes needed?

Close #651

P.S. I will be honest, that I used AI-agent to generate configurations.md but I checked it manually and it looks OK for me.

@SemyonSinchenko
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I'm thinking about using local checkpoints as defaults starting from 1.0 release to avoid problems with Spark Connect, k8s, etc. where using persistent storage is not always possible or may be hard to configure.

…point

# Conflicts:
#	core/src/test/scala/org/graphframes/lib/PregelSuite.scala
@SemyonSinchenko SemyonSinchenko merged commit 431e7ac into graphframes:master Jul 21, 2025
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@SemyonSinchenko SemyonSinchenko deleted the 651-localCheckpoint branch July 21, 2025 17:34
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feat: use localCheckpoint in iterative algorithms
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