On Fri, Nov 25, 2022 at 11:09 AM Michael Rambichler <mich...@rambichler.at>
wrote:

> Hi Claus, Bakab
>
> Thanks for your feedback.
> The argument with the explicit decision is valid. But on the other hand
> IMHO its better that the route fails immediately then running uncontrolled
> OOM later in production.
>
> If you agree with me I will make the JIRA/Pull Request for setting the
> default to true.
>
> @Claus. We have some routes with more then 1MB XML messages which has to be
> streamed and parsed.
>
> BR
>  Michael
>
> Am Do., 24. Nov. 2022 um 17:11 Uhr schrieb Babak Vahdat
> <babak.vah...@swissonline.ch.invalid>:
>
> >
> >
> > > On 24 Nov 2022, at 16:48, Claus Ibsen <claus.ib...@gmail.com> wrote:
> > >
> > > On Thu, Nov 24, 2022 at 3:27 PM Babak Vahdat
> > > <babak.vah...@swissonline.ch.invalid> wrote:
> > >
> > >> Hi
> > >>
> > >> I remember there was a rational behind that:
> > >>
> >
> > Sorry I made a tiny typo above, I meant “rationale” and not “rational”.
> >
> > Babak
> >
> > >> https://issues.apache.org/jira/browse/CAMEL-18098 <
> > >> https://issues.apache.org/jira/browse/CAMEL-18098>
> > >>
> > >> "As spooling to disk requires that the volume have space and the user
> > has
> > >> permission to write to disk etc. For container workloads this is not
> > always
> > >> the case."
> > >>
> > >> So better would be to explicitly enable if *really* required for large
> > >> data streams which is not always the case?
> > >>
> > > Babak
> > >>
> > >
> > >
> > > Ah yeah, good point Babak. Users that work with large streams needs to
> > > configure for such use-cases.
> > > You may also want to configure which temporary directory to use for
> > > spooling, and what byte limit to overflow etc.
> > >
> > >
> > >
> > >>
> > >>> On 24 Nov 2022, at 14:59, Claus Ibsen <claus.ib...@gmail.com> wrote:
> > >>>
> > >>> Hi
> > >>>
> > >>> Yeah that is a good idea to overflow to disk.
> > >>> You are welcome to create a JIRA and send a PR against main branch.
> > >>>
> > >>> How big streams are you processing btw ?
> > >>>
> > >>> On Thu, Nov 24, 2022 at 2:37 PM Michael Rambichler <
> > >> mich...@rambichler.at>
> > >>> wrote:
> > >>>
> > >>>> Hi all,
> > >>>>
> > >>>> with camel 3.18. stream caching is enabled by default. That's good.
> > >>>>
> > >>>> But we have realized that spooling is disabled by default.
> > >>>> IMHO this can lead to unwanted OOM situations. Because from now on
> (>=
> > >>>> 3.18.x) a big stream will be cached by default in memory.
> > >>>> Or am I wrong?
> > >>>>
> > >>>> I would strongly suggest that we set the default of spoolEnabled
> also
> > to
> > >>>> true.
> > >>>>
> > >>>> What do you think?
> > >>>>
> > >>>> BR
> > >>>> Michael
> > >>>>
> > >>>
> > >>>
> > >>> --
> > >>> Claus Ibsen
> > >>> -----------------
> > >>> @davsclaus
> > >>> Camel in Action 2: https://www.manning.com/ibsen2
> > >>
> > >>
> > >
> > > --
> > > Claus Ibsen
> > > -----------------
> > > @davsclaus
> > > Camel in Action 2: https://www.manning.com/ibsen2
> >
> >
>

Hi all

Not to hijack the thread but to point out that there's possible problems
with streamcaching and spooling, related to InOut-routes.
When UnitOfWork ends, the spooled file will be deleted and that happens
before the Out-response is created, leading to
FileNotFoundException. So defaulting spooling enabled might lead to
unexpected problems elsewhere.

-- 
Simo Hakanen

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