Andreas Deller wrote:
Pid wrote:
Andreas Deller wrote:
Hi
I have activated LiveHttpHeaders and the RequestDumperValve and
fortunately ran into the problem in my development environment.
Sorry for the long posting, but it seems necessary to me.
Important notes:
- Between the client and the server, there is a reverse proxy.
RDV is reporting that the file is has content length and type null.
It's likely that the content type seen, 'text/html' is just a being
set as a default.
Looks like Tomcat is having trouble getting the file off the disk.
Which version of Tomcat (you mentioned two) did this occur under?
5.0.28 on Linux (Debian) and Solaris 9. It also occurred with 4.1.30.
Are you using APR/tcnative?
No, I haven't installed any of them.
APR offers a worthwhile performance improvement for OS native operations
like serving static files. It also might offer an route around any Java
issues, if you're able to use the OS 'sendfile' function.
(Actually not sure if this is works for TC5.0, anyone list?)
I think that the problem is more rare using JDK 1.5.0_09 than 1.4.2_06,
but of course I couldn't measure this.
If the problem occurs with both JVMs and both versions of Tomcat, you
may have encountered a rare but unknown error condition, or it's not
Java/Tomcat...
In the former case, I'd try to eliminate the room for error between
versions by standardising JVM/Tomcat versions.
In the latter case, it could be an OS issue. The RD Valve reported no
file size, or file data (from which it could determine MIME info),
suggesting that Tomcat was unable to read the file data off the disk for
some reason.
Try checking the disk for capacity, damage issues.
If it's always the same directory, I'd create a fresh copy of the
directory by uploading all of the files to a new dir, and
symlinking/altering the old path to the new one.
The image files aren't being served off a network file share or
something are they?
p
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