Improvements for issues found during Performance and Load testing
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Key: SYNAPSE-342
URL: https://issues.apache.org/jira/browse/SYNAPSE-342
Project: Synapse
Issue Type: Bug
Reporter: Asankha C. Perera
Assignee: Asankha C. Perera
During load testing, I encountered an error for about once in 300,000 to
400,000 requests of 1K, iterating 1000 messages at 80 user concurrency. The
issue resulted in a 'Transfer-Encoding header already present' error, but the
cause was the Axis2FlexibleMEPClient.send()'s last two lines, which needs to
switch the request to skip the 202 accepted message with the
mepclient.execute() which could take time even with async NIO sender
On performance front, I came across a few places where we used Axiom's
serialize() method instead of serializeAndConsume() - which was due to a bad
merge from the 1.1 codebase
I am also adding a connection.isStale() check before returning a keepalive
connection for reuse to improve stability
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