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https://issues.apache.org/jira/browse/CXF-7641?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18127903#comment-18127903
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Colm O hEigeartaigh commented on CXF-7641:
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Adding a patch to buffer the response like we do for requests to solve this
problem. It's enough of a breaking change to warrant only going in CXF 4.3.0.
When CXF has to buffer an outbound message (for example, when schema validation
of responses is enabled), {{CachingXmlEventWriter}} used to create a new
namespace context and map for every XML element, even though almost no elements
declare namespaces. The patch creates one only when an element actually
declares a namespace, which cuts total allocation by about 19% for large
messages and reduces garbage-collection work. Namespace scoping is unchanged,
and a test covers it.
This is only a partial improvement for this issue. The buffered message is
still stored in memory as one object per XML node, so very large or concurrent
responses can still exhaust the heap. A complete fix would buffer the response
as bytes (spilling to disk) instead. Until then, the workaround is to disable
schema validation of responses and make sure
{{org.apache.cxf.output.buffering}} is not enabled.
> BareOutInterceptor seems to be taking lot of time
> --------------------------------------------------
>
> Key: CXF-7641
> URL: https://issues.apache.org/jira/browse/CXF-7641
> Project: CXF
> Issue Type: Bug
> Components: Core
> Affects Versions: 2.7.6
> Reporter: ANURAG SHRIVASTAVA
> Assignee: Colm O hEigeartaigh
> Priority: Major
> Fix For: 4.3.0
>
> Attachments: CXF-7641-buffer-bytes-for-validation.patch
>
>
> Team,
>
> we are using Apache CXF 2.7.6 and we are seeing when SOAP Payload is big then
> BareOutInterceptor is taking almost 5 seconds.
>
> Line 71870: *09:56:33.131* [http-bio-8110-exec-1] DEBUG
> o.a.cxf.phase.PhaseInterceptorChain - Invoking handleMessage on interceptor
> org.apache.cxf.interceptor.*BareOutInterceptor*@658b9781
> Line 71873: *09:56:38.532* [http-bio-8110-exec-1] DEBUG
> o.a.cxf.phase.PhaseInterceptorChain - Invoking handleMessage on interceptor
> org.apache.cxf.binding.soap.interceptor.SoapOutInterceptor$SoapOutEndingInterceptor@9dde9a4
> Line 71874: 09:56:38.532 [http-bio-8110-exec-1] DEBUG
> o.a.cxf.phase.PhaseInterceptorChain - Invoking handleMessage on interceptor
> org.apache.cxf.interceptor.AttachmentOutInterceptor$AttachmentOutEndingInterceptor@73543007
> Line 71875: 09:56:39.954 [http-bio-8110-exec-1] DEBUG
> o.a.cxf.phase.PhaseInterceptorChain - Invoking handleMessage on interceptor
> org.apache.cxf.interceptor.StaxOutEndingInterceptor@43b91daa
> Line 71876: 09:56:39.954 [http-bio-8110-exec-1] DEBUG
> o.a.cxf.phase.PhaseInterceptorChain - Invoking handleMessage on interceptor
> org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor@3ac8c8db
>
>
>
> Please suggest can which scenario it can take this much of time
>
> Anurag
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