Hello everyone,
I am experiencing long processing times for the method
FileUpload.parseRequest.
Of course, 'long' is a relative concept, and I try to explain:
I have a web application running on tomcat 5.5, JDK 1.4; one of the
functions of the application includes uploading a file from the browser
and saving it in a database (Postgres 8) as a BLOB.
With a 700K file, I have measured:
- 2 sec for trasferring from the browser to the server
- 15 sec for FileUpload.parseRequest
- 3 sec for saving to the DB (on the same machine)
The processor is a Xeon with 1 GB RAM, but anyway, the relative times
are not reasonable! With a 1.8M file, they scale up keeping the same
distribution. I think that decoding a MIME stream cannot be _five_ times
as long as storing it to a database.
I have tried a very low disk threshold (64K) and a very high threshold
(2M), but apparently there are no differences.
I have googled a lot, but the only quantitative account reported 30 sec
for a 45MB file, which is vary far from my tests.
Anybody has pointers, ideas, rants, ... Maybe is there anything in
Tomcat, VM settings, ...
TIA
Andrea Spinelli
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