Performance degradation in attachment logic in CXF 2.2.4
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Key: CXF-2544
URL: https://issues.apache.org/jira/browse/CXF-2544
Project: CXF
Issue Type: Bug
Affects Versions: 2.2.4
Reporter: aaron pieper
AttachmentDeserializer attaches a DelegatingInputStream to the message, which
contains the attachment body. The performance of this InputStream has been
significantly degraded from CXF 2.2.2 to CXF 2.2.4. For example, a 55 megabyte
file used to take around three seconds to parse - now it takes over one minute.
I've attached a performance test which demonstrates the issue, using an 8
megabyte file. In CXF v2.2.2, this test takes a fraction of a second to run. In
CXF v2.2.4, this test takes about 10 seconds on my machine.
I tried to track down the cause of the degradation. AttachmentDeserializer
line 206 calls "new InternetHeaders(stream)" which takes a long time to
complete. Since CXF v2.2.2 and CXF v2.2.4 use the same version of this
InternetHeaders class, I believe it must be a change in the way the stream is
being put together.
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