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https://issues.apache.org/jira/browse/XERCESC-2019?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13818089#comment-13818089
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Alberto Massari commented on XERCESC-2019:
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There is the limitation of the memory required to keep the data in memory;
there is the overhead of the DOM nodes, and the data of the XML is kept in
Unicode format, so assuming your XML is almost entirely a single text node, at
a certain point you could have allocated the 179Mb*sizeof(XMLCh) of the
previous buffer plus a 2*179Mb*sizeof(XMLCh) new buffer, that is more than 1Gb
of memory
> Error in memory allocation for even small messages.
> ---------------------------------------------------
>
> Key: XERCESC-2019
> URL: https://issues.apache.org/jira/browse/XERCESC-2019
> Project: Xerces-C++
> Issue Type: Bug
> Components: DOM
> Affects Versions: 3.1.1
> Environment: windows XP vc9, linux and solaris
> Reporter: mahalakshmi
> Assignee: Alberto Massari
> Labels: patch
> Fix For: 3.2.0
>
> Attachments: zippedfiles.zip
>
>
> I have my xsd schema using which i have created my standard xml.
> After creating the xml i fill the values for each tag in my xml.
> I get memory allocation error when i try to traverse through the xml and set
> the values for each tag in my xml.
> I get allocation error when my program calls the setTextcontent() of
> xerces.It is crashing in DOMDocumentImpl.cpp allocate(size).(2nd if condition
> in that function)
> Is there any setting that needs to be done for memory allocation? How much is
> the maximum size of xml that xerces can parse?how do we manage the memory
> allocation and deallocation in DOM?
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