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From "Saliya Ekanayake (JIRA)" <j...@apache.org>
Subject [jira] Created: (SYNAPSE-408) Improve Synapse Memory Footprint under HTTP 1.0
Date Mon, 28 Jul 2008 06:05:31 GMT
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


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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