pan3793 opened a new pull request, #3208:
URL: https://github.com/apache/parquet-java/pull/3208

   <!--
   Thanks for opening a pull request!
   
   If you're new to Parquet-Java, information on how to contribute can be found 
here: https://parquet.apache.org/docs/contribution-guidelines/contributing
   
   Please open a GitHub issue for this pull request: 
https://github.com/apache/parquet-java/issues/new/choose
   and format pull request title as below:
   
       GH-${GITHUB_ISSUE_ID}: ${SUMMARY}
   
   or simply use the title below if it is a minor issue:
   
       MINOR: ${SUMMARY}
   
   -->
   
   ### Rationale for this change
   
   This allows the caller to reuse the `SeekableInputStream` but avoid leaking 
other resources held by `ParquetFileReader`, for example, in Spark Parquet 
vectorized reading code path, it opens two times for each Parquet file:
   
   1. the first time opens and reads the footer, do some pruning and push down 
stuff.
   2. the second time opens and reads the row groups
   
   it's possible to reuse the `SeekableInputStream` to reduce the NameNode RPC
   
   ### What changes are included in this PR?
   
   Providing an additional `close` method for `ParquetFileReader` that accepts 
`boolean closeFileInputStream`.
   
   ### Are these changes tested?
   
   N/A
   
   ### Are there any user-facing changes?
   
   No.
   
   <!-- Please uncomment the line below and replace ${GITHUB_ISSUE_ID} with the 
actual Github issue id. -->
   Closes #3207
   


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: [email protected]

For queries about this service, please contact Infrastructure at:
[email protected]


---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]

Reply via email to