[jira] [Commented] (PDFBOX-2200) Memory leak with org.apache.pdfbox.pdmodel.font.PDFont#cmapObjects

["John Hewson (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PDFBOX-2200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14057562#comment-14057562 ] 

John Hewson commented on PDFBOX-2200:
-------------------------------------

Yep, clearResources() is the workaround for now. I'm planning to remove cmapObjects as part of PDFBOX-2149.

> Memory leak with org.apache.pdfbox.pdmodel.font.PDFont#cmapObjects
> ------------------------------------------------------------------
>
>                 Key: PDFBOX-2200
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-2200
>             Project: PDFBox
>          Issue Type: Bug
>          Components: PDModel
>    Affects Versions: 1.8.6
>            Reporter: Matthew Buckett
>
> We use Tika to extract text from a large number (10,000+) of PDFs in a long running JVM, after doing this for a while we started running short of heap space. A heap dump shows that about 717MB of heap is retained through org.apache.pdfbox.pdmodel.font.PDFont#cmapObjects and the hashmap has 18001 entries.
> PDFBOX-1009 looked to partially address this but it appears the symptons are still present. As a workaround I'm going to manually call             PDFont.clearResources() after indexing each document to prevent this happening, but it would be better if I didn't have to.



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