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Posted to dev@synapse.apache.org by "Andreas Veithen (JIRA)" <ji...@apache.org> on 2008/08/24 13:59:45 UTC
[jira] Resolved: (SYNAPSE-408) Improve Synapse Memory Footprint
under HTTP 1.0
[ https://issues.apache.org/jira/browse/SYNAPSE-408?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andreas Veithen resolved SYNAPSE-408.
-------------------------------------
Resolution: Fixed
Fix Version/s: 1.3
Changed Axis2HttpRequest to use TemporaryData instead of ByteArrayOutputStream.
> Improve Synapse Memory Footprint under HTTP 1.0
> -----------------------------------------------
>
> Key: SYNAPSE-408
> URL: https://issues.apache.org/jira/browse/SYNAPSE-408
> Project: Synapse
> Issue Type: Improvement
> Reporter: Saliya Ekanayake
> Assignee: Andreas Veithen
> Priority: Minor
> Fix For: 1.3
>
>
> Synapse serializes the SOAP envelope in order to calculate the content length of the message under HTTP 1.0. This serialization is done inside the class Axis2HttpRequest which is inside the transports module. The serialized bytes are then stored in the message context for future use by the streamMessageContents() method inside the same class.
> Thus, the entire content of the SOAP envelope is stored inside the memory leading to a possible out of memory situation when the XML data is large. A solution to this would be to write some of the data to a permanent storage (like hard disk) based on a threshold value. The TemporaryData class inside the core module is a good solution to this kind of work. It would, however, incur a cyclic dependency if used inside the Axis2HttpRequest class.
> If we can resolve this issue (probably by moving the TemporaryData class to a utility module and then making the core too depend on that) it will of great use in improving the memory footprint of Synapse.
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