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https://issues.apache.org/jira/browse/AXIS2-2743?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12504773
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Tammy Dugan commented on AXIS2-2743:
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I experimented changing the following values in axis2.xml:
<parameter name="enableMTOM" locked="false">true</parameter>
<parameter name="enableSwA" locked="false">false</parameter>
If either parameter is true, I get the OutOfMemory exception. If both are
false, the 171 MB xml body transfers just fine. It looks like the attachment
handling code is buffering the xml. I need MTOM enabled and to send large xml
soap bodies.
> OutOfMemory error returning large xml
> -------------------------------------
>
> Key: AXIS2-2743
> URL: https://issues.apache.org/jira/browse/AXIS2-2743
> Project: Axis 2.0 (Axis2)
> Issue Type: Bug
> Affects Versions: 1.2
> Environment: Windows XP
> Reporter: Tammy Dugan
> Assignee: Davanum Srinivas
> Attachments: services.xml, TestAxis2ReturnDataset.java
>
>
> When I try to return 270 MB of xml from an axis2 service, I get an
> OutOfMemory error. I wrote my own CustomDataSource and the error occurs in
> the following serialize method:
> public void serialize(XMLStreamWriter xmlWriter) throws XMLStreamException
> {
> XMLStreamReader reader = null;
> StreamingOMSerializer serializer = new StreamingOMSerializer();
> reader = getReader();
> System.out.println("before out of memory error");
> serializer.serialize(reader, xmlWriter);// OutOfMemory error
> here
> System.out.println("after out of memory error");
> xmlWriter.flush();
> }
> If I run the serialize locally and create my own xmlWriter, there is no
> error. However, if the serialize gets called from an axis2 service, an
> OutOfMemory error occurs. Because of this, I really think that axis2 is using
> a writer as input to XMLStreamWriter that is buffering all the data. It
> shouldn't be doing that.
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