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Posted to c-user@axis.apache.org by Subra A Narayanan <as...@gmail.com> on 2007/08/14 22:39:02 UTC
Large Attachment support in Axis2/C
Hello folks,
My webservice receives/sends attachments from/to clients using Axis2/C MTOM.
Today we noticed that when a client was trying to send a 1.3 MB file, the
server only received about 1/2 of it (around 760 KB)
I was reading the MTOM guide
=> http://ws.apache.org/axis2/1_2/mtom-guide.html#41
Under advanced topics, it talks about file caching for large files in
Axis2/Java. Is similar kind of support available in Axis2/C as well? I
looked at the axis2.xml file and there is nothing in there.
The application I am working on requires to support the sending and
receiving of very large files.
As usual thanks for all the help!
Subra
Re: Large Attachment support in Axis2/C
Posted by Samisa Abeysinghe <sa...@wso2.com>.
Subra A Narayanan wrote:
> Thanks Samisa....do let me know what you find out with your tests?
I too found that there were problems with large attachments when using
Apache module.
However, the good news is that I was able to fix that. I have committed
the fix to svn. Please test with a fresh checkout.
Thanks,
Samisa...
>
> Also I created a JIRA issue requesting attachment caching support be
> added to Axis2/C. Here is a lnk to the issue:
>
> https://issues.apache.org/jira/browse/AXIS2C-672
>
> Thanks!!
>
>
> On 8/15/07, *Samisa Abeysinghe* <samisa@wso2.com
> <ma...@wso2.com>> wrote:
>
> Subra A Narayanan wrote:
> > Samisa,
> >
> > One more thing that I noticed today was that the web server
> where my
> > service is running becomes non-responsive when it is receiving an
> > attachment. I should let you know that for the time being, i am
> using
> > my laptop as the web server. i am running 64 bit linux using VM
> ware
> > virtual machine on windows xp professional. Is there any way I can
> > change axis2/apache settings so as to improve the performance?
> Are you running the apache server in debug mode with -X option? If
> yes,
> you may try the non-debug mode of apache. If not, it could be due
> to the
> fact that you are using VM ware. However, I will also test it with a
> large attachment and see if there is a problem. I have tested large
> attachments with simple axis server without much problem.
> >
> > Also is there any recommended limit on attachment size in Axis2/C
> > since caching is not available yet? I was easily able to transmit a
> > 3.5 MB file but when I tried a 5 MB file, the server recvd only
> a part
> > of the file about 2.8 MB.
> This needs further investigation. Let me have a look into this
> with the
> Apache module.
>
> Samisa...
>
> --
> Samisa Abeysinghe : WSO2 WSF/C
> "
> http://wso2.org/projects/wsf/c?WSO2 Web Services Framework/C - Open source C library for providing and consuming Web services
> <http://wso2.org/projects/wsf/c?WSO2 Web Services Framework/C - Open source C library for providing and consuming Web services>"
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: axis-c-user-unsubscribe@ws.apache.org
> <ma...@ws.apache.org>
> For additional commands, e-mail: axis-c-user-help@ws.apache.org
> <ma...@ws.apache.org>
>
>
--
Samisa Abeysinghe : WSO2 WSF/C
"http://wso2.org/projects/wsf/c?WSO2 Web Services Framework/C - Open source C library for providing and consuming Web services"
---------------------------------------------------------------------
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Re: Large Attachment support in Axis2/C
Posted by Subra A Narayanan <as...@gmail.com>.
Thanks Samisa....do let me know what you find out with your tests?
Also I created a JIRA issue requesting attachment caching support be added
to Axis2/C. Here is a lnk to the issue:
https://issues.apache.org/jira/browse/AXIS2C-672
Thanks!!
On 8/15/07, Samisa Abeysinghe <sa...@wso2.com> wrote:
>
> Subra A Narayanan wrote:
> > Samisa,
> >
> > One more thing that I noticed today was that the web server where my
> > service is running becomes non-responsive when it is receiving an
> > attachment. I should let you know that for the time being, i am using
> > my laptop as the web server. i am running 64 bit linux using VM ware
> > virtual machine on windows xp professional. Is there any way I can
> > change axis2/apache settings so as to improve the performance?
> Are you running the apache server in debug mode with -X option? If yes,
> you may try the non-debug mode of apache. If not, it could be due to the
> fact that you are using VM ware. However, I will also test it with a
> large attachment and see if there is a problem. I have tested large
> attachments with simple axis server without much problem.
> >
> > Also is there any recommended limit on attachment size in Axis2/C
> > since caching is not available yet? I was easily able to transmit a
> > 3.5 MB file but when I tried a 5 MB file, the server recvd only a part
> > of the file about 2.8 MB.
> This needs further investigation. Let me have a look into this with the
> Apache module.
>
> Samisa...
>
> --
> Samisa Abeysinghe : WSO2 WSF/C
> "
> http://wso2.org/projects/wsf/c?WSO2 Web Services Framework/C - Open source C library for providing and consuming Web services
> "
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: axis-c-user-unsubscribe@ws.apache.org
> For additional commands, e-mail: axis-c-user-help@ws.apache.org
>
>
Re: Large Attachment support in Axis2/C
Posted by Samisa Abeysinghe <sa...@wso2.com>.
Subra A Narayanan wrote:
> Samisa,
>
> One more thing that I noticed today was that the web server where my
> service is running becomes non-responsive when it is receiving an
> attachment. I should let you know that for the time being, i am using
> my laptop as the web server. i am running 64 bit linux using VM ware
> virtual machine on windows xp professional. Is there any way I can
> change axis2/apache settings so as to improve the performance?
Are you running the apache server in debug mode with -X option? If yes,
you may try the non-debug mode of apache. If not, it could be due to the
fact that you are using VM ware. However, I will also test it with a
large attachment and see if there is a problem. I have tested large
attachments with simple axis server without much problem.
>
> Also is there any recommended limit on attachment size in Axis2/C
> since caching is not available yet? I was easily able to transmit a
> 3.5 MB file but when I tried a 5 MB file, the server recvd only a part
> of the file about 2.8 MB.
This needs further investigation. Let me have a look into this with the
Apache module.
Samisa...
--
Samisa Abeysinghe : WSO2 WSF/C
"http://wso2.org/projects/wsf/c?WSO2 Web Services Framework/C - Open source C library for providing and consuming Web services"
---------------------------------------------------------------------
To unsubscribe, e-mail: axis-c-user-unsubscribe@ws.apache.org
For additional commands, e-mail: axis-c-user-help@ws.apache.org
Re: Large Attachment support in Axis2/C
Posted by Subra A Narayanan <as...@gmail.com>.
Samisa,
One more thing that I noticed today was that the web server where my service
is running becomes non-responsive when it is receiving an attachment. I
should let you know that for the time being, i am using my laptop as the web
server. i am running 64 bit linux using VM ware virtual machine on windows
xp professional. Is there any way I can change axis2/apache settings so as
to improve the performance?
Also is there any recommended limit on attachment size in Axis2/C since
caching is not available yet? I was easily able to transmit a 3.5 MB file
but when I tried a 5 MB file, the server recvd only a part of the file about
2.8 MB.
Thanks so much for all the help.
Subra
On 8/15/07, Subra A Narayanan < aswathsn@gmail.com> wrote:
>
> Do you have an approximate idea as to when you will be implementing
> attachment caching support in Axis2/C? That would be a great feature to have
> and it will greatly help my development efforts. Do you want me to create a
> JIRA issue so that this gets prioritized?
>
> How do I tell if the client is using chunking or not? Just by looking at
> the HTTP headers? I will do that once I get to work today. My client is also
> written in Axis2/C. Is there a way to explicitly turn chunking on/off?
>
> TIA
> Subra
>
> On 8/14/07, Samisa Abeysinghe < samisa@wso2.com> wrote:
> >
> > Subra A Narayanan wrote:
> > > Hello folks,
> > >
> > > My webservice receives/sends attachments from/to clients using Axis2/C
> > > MTOM. Today we noticed that when a client was trying to send a 1.3 MB
> > > file, the server only received about 1/2 of it (around 760 KB)
> > There was a bug that we fond out yesterday with chunked clients where
> > the size of the attachment was limited to 1MB.
> > Is your client using HTTP chinking? If yes, cold you turn that off and
> > see how it goes? Alternatively you can use the latest svn.
> > > I was reading the MTOM guide
> > >
> > > => http://ws.apache.org/axis2/1_2/mtom-guide.html#41
> > >
> > >
> > > Under advanced topics, it talks about file caching for large files
> > > in Axis2/Java. Is similar kind of support available in Axis2/C as
> > > well? I looked at the axis2.xml file and there is nothing in there.
> > Axis2/C does not have caching support as yet. We would have to look into
> >
> > the details and implement it with Axis2/C MTOM model.
> >
> > Samisa...
> > >
> > > The application I am working on requires to support the sending and
> > > receiving of very large files.
> > >
> > > As usual thanks for all the help!
> > >
> > >
> > > Subra
> >
> >
> > --
> > Samisa Abeysinghe : WSO2 WSF/C
> > "http://wso2.org/projects/wsf/c?WSO2 Web Services Framework/C - Open source C library for providing and consuming Web services
> >
> > <http://wso2.org/projects/wsf/c?WSO2%C2%A0Web%C2%A0Services%C2%A0Framework/C%C2%A0-%C2%A0Open%C2%A0source%C2%A0C%C2%A0library%C2%A0for%C2%A0providing%C2%A0and%C2%A0consuming%C2%A0Web%C2%A0services>
> > "
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: axis-c-user-unsubscribe@ws.apache.org
> > For additional commands, e-mail: axis-c-user-help@ws.apache.org
> >
> >
>
Re: Large Attachment support in Axis2/C
Posted by Samisa Abeysinghe <sa...@wso2.com>.
Subra A Narayanan wrote:
> Do you have an approximate idea as to when you will be implementing
> attachment caching support in Axis2/C? That would be a great feature
> to have and it will greatly help my development efforts. Do you want
> me to create a JIRA issue so that this gets prioritized?
First of all, we need to figure out how to support this feature of
caching. I will look into the Java implementation and see how they do
that. Right now, it is hard to tell how much time it would take,
probably not by the time of 1.1. But since this is an important feature,
we must implement it. Please raise a Jira, so that we can keep track of
the issue.
>
> How do I tell if the client is using chunking or not? Just by looking
> at the HTTP headers?
Yes.
> I will do that once I get to work today. My client is also written in
> Axis2/C. Is there a way to explicitly turn chunking on/off?
Our Axis2/C client does not use chinking. Often the problem happens when
using Java clients, they by default use chinking.
If you are using Axis2/C client and get the server receiving only part
of it, that could be due to a bug somewhere. That needs further
investigation.
Samisa...
--
Samisa Abeysinghe : WSO2 WSF/C
"http://wso2.org/projects/wsf/c?WSO2 Web Services Framework/C - Open source C library for providing and consuming Web services"
---------------------------------------------------------------------
To unsubscribe, e-mail: axis-c-user-unsubscribe@ws.apache.org
For additional commands, e-mail: axis-c-user-help@ws.apache.org
Re: Large Attachment support in Axis2/C
Posted by Subra A Narayanan <as...@gmail.com>.
Do you have an approximate idea as to when you will be implementing
attachment caching support in Axis2/C? That would be a great feature to have
and it will greatly help my development efforts. Do you want me to create a
JIRA issue so that this gets prioritized?
How do I tell if the client is using chunking or not? Just by looking at the
HTTP headers? I will do that once I get to work today. My client is also
written in Axis2/C. Is there a way to explicitly turn chunking on/off?
TIA
Subra
On 8/14/07, Samisa Abeysinghe <sa...@wso2.com> wrote:
>
> Subra A Narayanan wrote:
> > Hello folks,
> >
> > My webservice receives/sends attachments from/to clients using Axis2/C
> > MTOM. Today we noticed that when a client was trying to send a 1.3 MB
> > file, the server only received about 1/2 of it (around 760 KB)
> There was a bug that we fond out yesterday with chunked clients where
> the size of the attachment was limited to 1MB.
> Is your client using HTTP chinking? If yes, cold you turn that off and
> see how it goes? Alternatively you can use the latest svn.
> > I was reading the MTOM guide
> >
> > => http://ws.apache.org/axis2/1_2/mtom-guide.html#41
> >
> >
> > Under advanced topics, it talks about file caching for large files
> > in Axis2/Java. Is similar kind of support available in Axis2/C as
> > well? I looked at the axis2.xml file and there is nothing in there.
> Axis2/C does not have caching support as yet. We would have to look into
> the details and implement it with Axis2/C MTOM model.
>
> Samisa...
> >
> > The application I am working on requires to support the sending and
> > receiving of very large files.
> >
> > As usual thanks for all the help!
> >
> >
> > Subra
>
>
> --
> Samisa Abeysinghe : WSO2 WSF/C
> "
> http://wso2.org/projects/wsf/c?WSO2 Web Services Framework/C - Open source C library for providing and consuming Web services
> "
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: axis-c-user-unsubscribe@ws.apache.org
> For additional commands, e-mail: axis-c-user-help@ws.apache.org
>
>
Re: Large Attachment support in Axis2/C
Posted by Samisa Abeysinghe <sa...@wso2.com>.
Subra A Narayanan wrote:
> Hello folks,
>
> My webservice receives/sends attachments from/to clients using Axis2/C
> MTOM. Today we noticed that when a client was trying to send a 1.3 MB
> file, the server only received about 1/2 of it (around 760 KB)
There was a bug that we fond out yesterday with chunked clients where
the size of the attachment was limited to 1MB.
Is your client using HTTP chinking? If yes, cold you turn that off and
see how it goes? Alternatively you can use the latest svn.
> I was reading the MTOM guide
>
> => http://ws.apache.org/axis2/1_2/mtom-guide.html#41
>
>
> Under advanced topics, it talks about file caching for large files
> in Axis2/Java. Is similar kind of support available in Axis2/C as
> well? I looked at the axis2.xml file and there is nothing in there.
Axis2/C does not have caching support as yet. We would have to look into
the details and implement it with Axis2/C MTOM model.
Samisa...
>
> The application I am working on requires to support the sending and
> receiving of very large files.
>
> As usual thanks for all the help!
>
>
> Subra
--
Samisa Abeysinghe : WSO2 WSF/C
"http://wso2.org/projects/wsf/c?WSO2 Web Services Framework/C - Open source C library for providing and consuming Web services"
---------------------------------------------------------------------
To unsubscribe, e-mail: axis-c-user-unsubscribe@ws.apache.org
For additional commands, e-mail: axis-c-user-help@ws.apache.org