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Posted to dev@poi.apache.org by bu...@apache.org on 2016/12/19 15:40:39 UTC

[Bug 60498] New: [PATCH] XSSFImportFromXML Performance for large XML

https://bz.apache.org/bugzilla/show_bug.cgi?id=60498

            Bug ID: 60498
           Summary: [PATCH] XSSFImportFromXML Performance for large XML
           Product: POI
           Version: 3.14-FINAL
          Hardware: PC
            Status: NEW
          Severity: normal
          Priority: P2
         Component: XSSF
          Assignee: dev@poi.apache.org
          Reporter: misc.daniel@stucki.me
  Target Milestone: ---

Created attachment 34535
  --> https://bz.apache.org/bugzilla/attachment.cgi?id=34535&action=edit
Patch that solves a performance issue when Importing large xml

When using XSSFImportFromXML to import a large XML (several 1000 data entries)
into tables, the Duration of this Operation increases exponential.

The reason for that is a Performance issue in the Evaluation of xpath. (Read
more here:
http://stackoverflow.com/questions/3782618/xpath-evaluate-performance-slows-down-absurdly-over-multiple-calls

Find attached Patch.

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[Bug 60498] [PATCH] XSSFImportFromXML Performance for large XML

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=60498

Daniel <mi...@stucki.me> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |misc.daniel@stucki.me
                 OS|                            |All

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[Bug 60498] [PATCH] XSSFImportFromXML Performance for large XML

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=60498

Javen O'Neal <on...@apache.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Severity|normal                      |enhancement

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[Bug 60498] [PATCH] XSSFImportFromXML Performance for large XML

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=60498

Dominik Stadler <do...@gmx.at> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |PatchAvailable

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[Bug 60498] [PATCH] XSSFImportFromXML Performance for large XML

Posted by bu...@apache.org.
https://bz.apache.org/bugzilla/show_bug.cgi?id=60498

David North <dt...@corefiling.co.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |FIXED

--- Comment #1 from David North <dt...@corefiling.co.uk> ---
Thanks, patch and test look good to me.

Fixed in SVN r1777146

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