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https://issues.apache.org/jira/browse/CXF-6219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15955711#comment-15955711
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Abel Salgado Romero commented on CXF-6219:
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No problem at all. Luckily not many people uses B64 nowadays and the
alternatives work perfectly.
> Handling concurrent Base64 files causes memory overflow
> -------------------------------------------------------
>
> Key: CXF-6219
> URL: https://issues.apache.org/jira/browse/CXF-6219
> Project: CXF
> Issue Type: Improvement
> Components: Soap Binding, WS-* Components
> Affects Versions: 2.7.4
> Environment: Production
> Reporter: Abel Salgado Romero
> Labels: documentation
> Fix For: Invalid
>
>
> In a previous issue (https://issues.apache.org/jira/browse/CXF-5912) we were
> advised to update CXF version to avoid OOM errors.
> We did so (to 2.74) and the problem was fixed, we also applied a size limit
> of 20MB using the `org.apache.cxf.stax.maxTextLength` property.
> However, the memory consumption in the server is extremely higher than the
> actual data sent, having 1GB of Heap we get OOM sending just 6 concurrent
> requests of 20 MB.
> Reviewing some documents and other JIRA issues, we understand that Base64 is
> not optimized and not recomended. Can you confirm if this is the case or if
> there is a way to optimize how Base64 attachments are processed.
> Otoh, MTOM works like a charm ;)
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