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https://issues.apache.org/jira/browse/CAMEL-21162?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Claus Ibsen reassigned CAMEL-21162:
-----------------------------------
Assignee: Claus Ibsen
> Cannot reset StreamCache when the spool file has been deleted
> -------------------------------------------------------------
>
> Key: CAMEL-21162
> URL: https://issues.apache.org/jira/browse/CAMEL-21162
> Project: Camel
> Issue Type: Bug
> Components: camel-core
> Affects Versions: 4.4.0, 4.5.0, 4.6.0, 4.7.0
> Environment: Camel Version: > 4.3.0
>
> Reporter: Cristian
> Assignee: Claus Ibsen
> Priority: Major
> Fix For: 4.8.0
>
> Attachments: streamcaching_store_deletion.tar.gz
>
>
> During a migration path that will take us from Camel 3.x to Camel 4.x we
> encountered a problem with one of our Routes.
> Our Route tries to save the body of an http request to disk.
> The raised error preventing the correct execution of the route is the
> following: "{*}Cannot reset stream from file
> /tmp/camel-cache/cos7703786668416470635.tmp{*}".
> After debugging to understand the reason, I noticed that the execution flow
> compared to version 3 has changed with the introduction of the change that
> leads the _WrappedInputStream_ class to implement the _StreamCache_ -> {*}Var
> headers interface (#12960){*}.
> In fact, a downgrade to version 4.3.0, the version prior to the introduction
> of the change, solved our problem and the route started working again.
> The problem, which occurs when streamcaching spools to disk, is due to the
> fact that in the convertToStreamCache method of the StreamCachingHelper class
> the body of the message enters the else because it is an instance of
> StreamCache and does not continue towards the tryStreamCache method as in
> previous versions.
> In our case, when we save the body of the http request to disk, the temp file
> used for spooling is deleted (FileInputStreamCache.cleanUpTempFile) before
> all StreamCache resets are performed (StreamCachingAdvice.after).
> At that point, during the StreamCache reset, the code finds that the temp
> file has been deleted and raises the reported RuntimeCamelException exception.
> I attached an example that reproduces the problem.
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