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Posted to users@tomcat.apache.org by Jamie Jackson <ja...@gmail.com> on 2015/10/01 19:22:11 UTC
maxFileSize
Hi Folks,
My question has a few facets:
1. How do you get the active maxFileSize value from Tomcat? (Is it
possible in, say, jConsole?)
2. Is the default value's ("-1"
<https://tomcat.apache.org/tomcat-7.0-doc/servletapi/javax/servlet/annotation/MultipartConfig.html#maxFileSize()>)
meaning
documented anywhere? My guess is that it means "unlimited," but that's just
a guess. (If it's not documented, I think it should be.)
3. How do people know how to translate these API items to XML (in
web.xml)? I know I can find the answer for maxFileSize on StackOverflow,
but it seems like there should be general guidance on how to make that leap
(if there isn't specific guidance for those configurations in the official
documentation).
Thanks,
Jamie
Re: maxFileSize
Posted by Jamie Jackson <ja...@gmail.com>.
That answers my questions (and more) perfectly. Thanks a lot.
On Sat, Oct 3, 2015 at 10:23 AM, Christopher Schultz <
chris@christopherschultz.net> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
>
> Jamie,
>
> On 10/2/15 11:23 AM, Jamie Jackson wrote:
> > On Thu, Oct 1, 2015 at 5:25 PM, Christopher Schultz <
> >> Are you trying to get this value from application code using
> >> standard APIs, or are you trying to locate the value from within
> >> something like a Valve, which is Tomcat-specific?
> >
> > *Anywhere* is fine with me.
> >
> > I'm having some trouble with file uploads in an app. I'm asking
> > about it in the language's (Lucee's) forums, and people seem to be
> > hung up on the idea that it's a Tomcat setting (specifically this
> > maxFileSize setting) -- they're claiming it's got a default of 50MB
> > that I need to increase, but I'm seeing no evidence of such a
> > default. (There are apps in the wild, including the manager app,
> > which have a 50MB limit *specified in web.xml*, but I can find no
> > evidence that Tomcat, itself, has such a default.)
>
> Tomcat has a couple of defaults, but only one of them is Tomcat-specific
> :
>
> <Connector> maxPostSize - default is 2MiB
> http://tomcat.apache.org/tomcat-7.0-doc/config/http.html
> http://tomcat.apache.org/tomcat-7.0-doc/config/ajp.html
>
> If you are using Java Servlet 3.0 multipart upload, then your file
> limits may be specified in web.xml like this:
>
> <servlet>
> ...
> <multipart-config>
> <location>/tmp</location>
> <max-file-size>20848820</max-file-size>
> <max-request-size>418018841</max-request-size>
> <file-size-threshold>1048576</file-size-threshold>
> </multipart-config>
> </servlet>
> https://docs.oracle.com/javaee/6/tutorial/doc/gmhal.html
>
> The spec-defined limits for the max-file-size and max-request-size are
> both "unlimited" and the default for file-size-threshold is 0 bytes
> (always store the file on disk).
>
> You can also define these limits using an @MultipartConfig annotation
> on the code.
>
> I'm not sure which "wins" if these two are in conflict, but I would
> hope that the web.xml-defined values would win, since that doesn't
> require a re-compile of the source to modify them.
>
> Lastly, you may have some application-defined limits. Of course, we
> know nothing about those.
>
> But Tomcat has no magical 50MiB limit on anything. (Except for
> file-uploads specifically for the manager application.)
>
> - -chris
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> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
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>
>
Re: maxFileSize
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Jamie,
On 10/2/15 11:23 AM, Jamie Jackson wrote:
> On Thu, Oct 1, 2015 at 5:25 PM, Christopher Schultz <
>> Are you trying to get this value from application code using
>> standard APIs, or are you trying to locate the value from within
>> something like a Valve, which is Tomcat-specific?
>
> *Anywhere* is fine with me.
>
> I'm having some trouble with file uploads in an app. I'm asking
> about it in the language's (Lucee's) forums, and people seem to be
> hung up on the idea that it's a Tomcat setting (specifically this
> maxFileSize setting) -- they're claiming it's got a default of 50MB
> that I need to increase, but I'm seeing no evidence of such a
> default. (There are apps in the wild, including the manager app,
> which have a 50MB limit *specified in web.xml*, but I can find no
> evidence that Tomcat, itself, has such a default.)
Tomcat has a couple of defaults, but only one of them is Tomcat-specific
:
<Connector> maxPostSize - default is 2MiB
http://tomcat.apache.org/tomcat-7.0-doc/config/http.html
http://tomcat.apache.org/tomcat-7.0-doc/config/ajp.html
If you are using Java Servlet 3.0 multipart upload, then your file
limits may be specified in web.xml like this:
<servlet>
...
<multipart-config>
<location>/tmp</location>
<max-file-size>20848820</max-file-size>
<max-request-size>418018841</max-request-size>
<file-size-threshold>1048576</file-size-threshold>
</multipart-config>
</servlet>
https://docs.oracle.com/javaee/6/tutorial/doc/gmhal.html
The spec-defined limits for the max-file-size and max-request-size are
both "unlimited" and the default for file-size-threshold is 0 bytes
(always store the file on disk).
You can also define these limits using an @MultipartConfig annotation
on the code.
I'm not sure which "wins" if these two are in conflict, but I would
hope that the web.xml-defined values would win, since that doesn't
require a re-compile of the source to modify them.
Lastly, you may have some application-defined limits. Of course, we
know nothing about those.
But Tomcat has no magical 50MiB limit on anything. (Except for
file-uploads specifically for the manager application.)
- -chris
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To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
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Re: maxFileSize
Posted by Jamie Jackson <ja...@gmail.com>.
On Thu, Oct 1, 2015 at 5:25 PM, Christopher Schultz <
chris@christopherschultz.net> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
>
> Jamie,
>
> On 10/1/15 4:47 PM, Jamie Jackson wrote:
> > Point taken, Christopher. I did just discover that I'm actually
> > running 7.0.59, which isn't as egregious as 7.0.20. (I had got the
> > version information from an unreliable source before, apparently.)
>
> That version is *much* better than 7.0.20. But always nice to upgrade
> to latest if you can afford the (minimal) time to do it.
>
> As for your original question...
>
> >>>> On Thu, Oct 1, 2015 at 1:22 PM, Jamie Jackson
> >>>> <ja...@gmail.com> wrote:
> >>>>
> >>>>> Hi Folks,
> >>>>>
> >>>>> My question has a few facets:
> >>>>>
> >>>>>
> >>>>> 1. How do you get the active maxFileSize value from Tomcat?
> >>>>> (Is it possible in, say, jConsole?) 2. Is the default
> >>>>> value's ("-1"
> >>>>> <https://tomcat.apache.org/tomcat-7.0-doc/servletapi/javax/servlet
> /an
> >
> >>>>>
> notation/MultipartConfig.html#maxFileSize()>)
> >>>>> meaning documented anywhere? My guess is that it means
> >>>>> "unlimited," but that's just a guess. (If it's not
> >>>>> documented, I think it should be.) 3. How do people know
> >>>>> how to translate these API items to XML (in web.xml)? I
> >>>>> know I can find the answer for maxFileSize on
> >>>>> StackOverflow, but it seems like there should be general
> >>>>> guidance on how to make that leap (if there isn't specific
> >>>>> guidance for those configurations in the official
> >>>>> documentation).
>
> Are you trying to get this value from application code using standard
> APIs, or are you trying to locate the value from within something like
> a Valve, which is Tomcat-specific?
>
*Anywhere* is fine with me.
I'm having some trouble with file uploads in an app. I'm asking about it in
the language's (Lucee's) forums, and people seem to be hung up on the idea
that it's a Tomcat setting (specifically this maxFileSize setting) --
they're claiming it's got a default of 50MB that I need to increase, but
I'm seeing no evidence of such a default. (There are apps in the wild,
including the manager app, which have a 50MB limit *specified in web.xml*,
but I can find no evidence that Tomcat, itself, has such a default.)
>
> - -chris
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> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>
Re: maxFileSize
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Jamie,
On 10/1/15 4:47 PM, Jamie Jackson wrote:
> Point taken, Christopher. I did just discover that I'm actually
> running 7.0.59, which isn't as egregious as 7.0.20. (I had got the
> version information from an unreliable source before, apparently.)
That version is *much* better than 7.0.20. But always nice to upgrade
to latest if you can afford the (minimal) time to do it.
As for your original question...
>>>> On Thu, Oct 1, 2015 at 1:22 PM, Jamie Jackson
>>>> <ja...@gmail.com> wrote:
>>>>
>>>>> Hi Folks,
>>>>>
>>>>> My question has a few facets:
>>>>>
>>>>>
>>>>> 1. How do you get the active maxFileSize value from Tomcat?
>>>>> (Is it possible in, say, jConsole?) 2. Is the default
>>>>> value's ("-1"
>>>>> <https://tomcat.apache.org/tomcat-7.0-doc/servletapi/javax/servlet
/an
>
>>>>>
notation/MultipartConfig.html#maxFileSize()>)
>>>>> meaning documented anywhere? My guess is that it means
>>>>> "unlimited," but that's just a guess. (If it's not
>>>>> documented, I think it should be.) 3. How do people know
>>>>> how to translate these API items to XML (in web.xml)? I
>>>>> know I can find the answer for maxFileSize on
>>>>> StackOverflow, but it seems like there should be general
>>>>> guidance on how to make that leap (if there isn't specific
>>>>> guidance for those configurations in the official
>>>>> documentation).
Are you trying to get this value from application code using standard
APIs, or are you trying to locate the value from within something like
a Valve, which is Tomcat-specific?
- -chris
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To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
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Re: maxFileSize
Posted by Jamie Jackson <ja...@gmail.com>.
Point taken, Christopher. I did just discover that I'm actually running
7.0.59, which isn't as egregious as 7.0.20. (I had got the version
information from an unreliable source before, apparently.)
On Thu, Oct 1, 2015 at 3:41 PM, Christopher Schultz <
chris@christopherschultz.net> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA256
>
> Jamie,
>
> On 10/1/15 1:29 PM, Jamie Jackson wrote:
> > I'd meant to include that I'm running Tomcat 7.0.20 on Oracle Java
> > 7 (64-bit).
>
> Before you do anything else, you really need to upgrade Tomcat. That
> version of Tomcat is more than 4 years old and has publicly-disclosed,
> un-patched vulnerabilities.
>
> http://tomcat.apache.org/security-7.html
> http://tomcat.apache.org/tomcat-7.0-doc/changelog.html
>
> If you have the choice, upgrade to Tomcat 8.0.27 which will be
> available in a few hours.
>
> - -chris
>
> > On Thu, Oct 1, 2015 at 1:22 PM, Jamie Jackson
> > <ja...@gmail.com> wrote:
> >
> >> Hi Folks,
> >>
> >> My question has a few facets:
> >>
> >>
> >> 1. How do you get the active maxFileSize value from Tomcat? (Is
> >> it possible in, say, jConsole?) 2. Is the default value's ("-1"
> >> <https://tomcat.apache.org/tomcat-7.0-doc/servletapi/javax/servlet/an
> notation/MultipartConfig.html#maxFileSize()>)
> >> meaning documented anywhere? My guess is that it means
> >> "unlimited," but that's just a guess. (If it's not documented, I
> >> think it should be.) 3. How do people know how to translate these
> >> API items to XML (in web.xml)? I know I can find the answer for
> >> maxFileSize on StackOverflow, but it seems like there should be
> >> general guidance on how to make that leap (if there isn't
> >> specific guidance for those configurations in the official
> >> documentation).
> >>
> >> Thanks, Jamie
> >>
> >
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> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>
>
Re: maxFileSize
Posted by Christopher Schultz <ch...@christopherschultz.net>.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
Jamie,
On 10/1/15 1:29 PM, Jamie Jackson wrote:
> I'd meant to include that I'm running Tomcat 7.0.20 on Oracle Java
> 7 (64-bit).
Before you do anything else, you really need to upgrade Tomcat. That
version of Tomcat is more than 4 years old and has publicly-disclosed,
un-patched vulnerabilities.
http://tomcat.apache.org/security-7.html
http://tomcat.apache.org/tomcat-7.0-doc/changelog.html
If you have the choice, upgrade to Tomcat 8.0.27 which will be
available in a few hours.
- -chris
> On Thu, Oct 1, 2015 at 1:22 PM, Jamie Jackson
> <ja...@gmail.com> wrote:
>
>> Hi Folks,
>>
>> My question has a few facets:
>>
>>
>> 1. How do you get the active maxFileSize value from Tomcat? (Is
>> it possible in, say, jConsole?) 2. Is the default value's ("-1"
>> <https://tomcat.apache.org/tomcat-7.0-doc/servletapi/javax/servlet/an
notation/MultipartConfig.html#maxFileSize()>)
>> meaning documented anywhere? My guess is that it means
>> "unlimited," but that's just a guess. (If it's not documented, I
>> think it should be.) 3. How do people know how to translate these
>> API items to XML (in web.xml)? I know I can find the answer for
>> maxFileSize on StackOverflow, but it seems like there should be
>> general guidance on how to make that leap (if there isn't
>> specific guidance for those configurations in the official
>> documentation).
>>
>> Thanks, Jamie
>>
>
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Re: maxFileSize
Posted by Jamie Jackson <ja...@gmail.com>.
I'd meant to include that I'm running Tomcat 7.0.20 on Oracle Java 7
(64-bit).
On Thu, Oct 1, 2015 at 1:22 PM, Jamie Jackson <ja...@gmail.com> wrote:
> Hi Folks,
>
> My question has a few facets:
>
>
> 1. How do you get the active maxFileSize value from Tomcat? (Is it
> possible in, say, jConsole?)
> 2. Is the default value's ("-1"
> <https://tomcat.apache.org/tomcat-7.0-doc/servletapi/javax/servlet/annotation/MultipartConfig.html#maxFileSize()>) meaning
> documented anywhere? My guess is that it means "unlimited," but that's just
> a guess. (If it's not documented, I think it should be.)
> 3. How do people know how to translate these API items to XML (in
> web.xml)? I know I can find the answer for maxFileSize on StackOverflow,
> but it seems like there should be general guidance on how to make that leap
> (if there isn't specific guidance for those configurations in the official
> documentation).
>
> Thanks,
> Jamie
>