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https://issues.apache.org/jira/browse/PARQUET-2373?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17782921#comment-17782921
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ASF GitHub Bot commented on PARQUET-2373:
-----------------------------------------
zhangjiashen opened a new pull request, #1184:
URL: https://github.com/apache/parquet-mr/pull/1184
Make sure you have checked _all_ steps below.
### Jira
- [ ] My PR addresses the following [Parquet
Jira](https://issues.apache.org/jira/browse/PARQUET/) issues and references
them in the PR title. For example, "PARQUET-1234: My Parquet PR"
- https://issues.apache.org/jira/browse/PARQUET-2373
- relates to: https://issues.apache.org/jira/browse/PARQUET-2257
### Tests
- [ ] Unit tests and existing tests in TestParquetFileWriter,
TestParquetMetadataConverter, ParquetRewriterTest etc.
### Commits
- [ ] My commits all reference Jira issues in their subject lines. In
addition, my commits follow the guidelines from "[How to write a good git
commit message](http://chris.beams.io/posts/git-commit/)":
1. Subject is separated from body by a blank line
1. Subject is limited to 50 characters (not including Jira issue reference)
1. Subject does not end with a period
1. Subject uses the imperative mood ("add", not "adding")
1. Body wraps at 72 characters
1. Body explains "what" and "why", not "how"
### Documentation
- [ ] In case of new functionality, my PR adds documentation that describes
how to use it.
- All the public functions and the classes in the PR contain Javadoc that
explain what it does
> Improve performance with bloom_filter_length
> --------------------------------------------
>
> Key: PARQUET-2373
> URL: https://issues.apache.org/jira/browse/PARQUET-2373
> Project: Parquet
> Issue Type: Improvement
> Reporter: Jiashen Zhang
> Priority: Minor
>
> The spec *PARQUET-2257* has added bloom_filter_length for reader to load the
> bloom filter in a single shot.
> This implementation is to utilize bloom_filter_length field to read bloom
> filter (header + bitset) to facilitate I/O scheduling.
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