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Add optional page row count limit for parquet WriterProperties (#2941)#2942

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tustvold merged 2 commits intoapache:masterfrom
tustvold:add-parquet-row-count-limit
Oct 27, 2022
Merged

Add optional page row count limit for parquet WriterProperties (#2941)#2942
tustvold merged 2 commits intoapache:masterfrom
tustvold:add-parquet-row-count-limit

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@tustvold
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@tustvold tustvold commented Oct 26, 2022

Which issue does this PR close?

Closes #2941

Rationale for this change

What changes are included in this PR?

Are there any user-facing changes?

@github-actions github-actions bot added the parquet Changes to the parquet crate label Oct 26, 2022
@alamb alamb changed the title Add page row count limit (#2941) Add optional page row count limit for parquet WriterProperties (#2941) Oct 27, 2022
alamb
alamb approved these changes Oct 27, 2022
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Looks great -- thank you @tustvold

parquet/tests/arrow_writer_layout.rs
columns: vec![ColumnChunk {
pages: (0..20)
.map(|_| Page {
rows: 100,
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@alamb alamb Oct 27, 2022

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Not bad!

@tustvold tustvold merged commit 880c4d9 into apache:master Oct 27, 2022
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ursabot commented Oct 27, 2022

Benchmark runs are scheduled for baseline = 66ea66b and contender = 880c4d9. 880c4d9 is a master commit associated with this PR. Results will be available as each benchmark for each run completes.
Conbench compare runs links:
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ec2-t3-xlarge-us-east-2] ec2-t3-xlarge-us-east-2
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on test-mac-arm] test-mac-arm
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ursa-i9-9960x] ursa-i9-9960x
[Skipped ⚠️ Benchmarking of arrow-rs-commits is not supported on ursa-thinkcentre-m75q] ursa-thinkcentre-m75q
Buildkite builds:
Supported benchmarks:
ec2-t3-xlarge-us-east-2: Supported benchmark langs: Python, R. Runs only benchmarks with cloud = True
test-mac-arm: Supported benchmark langs: C++, Python, R
ursa-i9-9960x: Supported benchmark langs: Python, R, JavaScript
ursa-thinkcentre-m75q: Supported benchmark langs: C++, Java

Ted-Jiang
Ted-Jiang reviewed Nov 4, 2022
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parquet/src/column/writer/mod.rs
// In such a scenario the dictionary decoder may return an estimated encoded
// size in excess of the page size limit, even when there are no buffered values
if self.encoder.num_values() == 0 {
if self.page_metrics.num_buffered_values == 0 {
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@Ted-Jiang Ted-Jiang Nov 4, 2022

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I think this fix the should_add_data_page bug

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@alamb alamb Nov 4, 2022

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I am not quite sure what bug you are referring to

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@alamb alamb alamb approved these changes

@Ted-Jiang Ted-Jiang Ted-Jiang left review comments

@viirya viirya viirya approved these changes

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Add Page Row Count Limit

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@tustvold @ursabot @viirya @alamb @Ted-Jiang