Hi,
If i use Tomcat as a static (gifs) and dynamic (jsp) server, that is mostly
used inside a debugging evironment or maybe if it is specified that everything
in the webapp\app dir must be served by tomcat (still find this a very bad idee),
then i noticed that i get socket exceptions on specifiek files those files have
something in common they are the larger files in my app: 31290 and 23281 bytes
this is the error:
2001-03-28 04:40:07 - Ctx( /financialtools ): IOException in: R( /financialtools +
/overlib.js + null) socket write error
(code=10053)
Then i went testing in the source code of org.apache.tomcat.request.FileHandler where
it is thrown.
And after sometesting i found out that a picture can't be larger then 16383 because if
it is 16384
then an exception will be thrown. I tested this with the read in buffer:
byte[] buf = new byte[16383];
if that number is larger then 16383 i wil get a exception when i write it.
so if i keept it 16383 then the first write to out.write(buf, 0, read); will pass
but the next bloc will fail. And if i make it 16384, out.write(buf, 0, read); will
fail the first time!
As far as i can see now it comes from the jdk it self:
java.net.SocketException: socket write error (code=10053)
java.lang.Throwable(java.lang.String)
java.lang.Exception(java.lang.String)
java.io.IOException(java.lang.String)
java.net.SocketException(java.lang.String)
void java.net.SocketOutputStream.socketWrite(byte [], int, int,
java.io.FileDescriptor) <-----------
void java.net.SocketOutputStream.write(byte [], int, int)
void org.apache.tomcat.service.http.HttpResponseAdapter.doWrite(byte [], int, int)
void org.apache.tomcat.core.BufferedServletOutputStream.doWrite(byte [], int, int)
void org.apache.tomcat.core.BufferedServletOutputStream.reallyFlush()
void org.apache.tomcat.core.BufferedServletOutputStream.write(byte [], int, int)
void org.apache.tomcat.request.FileHandler.doService(org.apache.tomcat.core.Request,
org.apache.tomcat.core.Response)
So is this a bug of Tomcat or the JDK it self? But can't send more then 16K? that is a
bit strange.
I know this is not a tomcat list but when developing with struts i came accross this
and i don't want
to have another list that i have to monitor and i know there are a few tomcat
developers here.
Johan
