Are they are dual core Xeon's? If they are 20-25% cpu usage is one of
the cores fully utilized as it loads the large file.
Richard Koch wrote:
Unfortunately, tomcat is not responding to *any* requests until the upload
completes. After the upload, everything is fine.
We've reviewed our tomcat settings, and have not found anything that has
helped either--I was thinking that we might only be using one thread due to
some mistaken configuration, but that is not the case.
We see the CPU usage climb up to about 20% when dealing with large file
uploads, but it is no where near maxing our cpu usage on our dual xeons.
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of James
Carman
Sent: Wednesday, October 25, 2006 1:07 PM
To: Jakarta Commons Users List; [EMAIL PROTECTED]
Subject: Re: fileupload makes tomcat 5.5 unresponsive for other users
Are you saying that Tomcat isn't responding to any other of the same type of
requests (other file uploads) or it's not responding to *any* requests at
all (even requests to other webapps within the same instance)?
On 10/25/06, Richard Koch <[EMAIL PROTECTED]> wrote:
I am using the commons fileupload 1.1.1 along with the JSP/JSF tag
<t:inputFileUpload> tag. Out application server is Tomcat 5.5.
When a user uploads a file, tomcat becomes completely unresponsive to any
other requests until the upload is complete-this is the case no matter
what
the file size is 8K to 40MB.
Watching garbage collection logging details, I see that the file upload
component always seems to take at least 32MB or 42MB, and then it is
quickly
collected when the upload is completed, and the tomcat server is then
available to everyone.
I used the input stream from the
org.apache.myfaces.custom.fileupload.UploadedFile.getInputStream() call,
and
then write it out using the below method.
Any ideas what would be causing tomcat to be non-responsive to any other
request until the upload is finished? Are there any configuration tweeks
that can made to help. I have scanned the mail archives, wiki, and
documentation without luck. Perhaps I have missed something?
Thanks.
Rich K.
----------------------------------------------------------------------------
----------------------------------------------------------------------------
---------------------------------------------------
/**
* Write the given input stream to the given file identified by the
targetFilePath string.
* @param inputStream
* @param targetFilePath
* @throws IOException
*/
public static void writeInputStreamToFile(InputStream inputStream,
String targetFilePath) throws IOException {
InputStream in =
new BufferedInputStream(inputStream);
OutputStream out =
new FileOutputStream(targetFilePath);
try {
byte[] buffer = new byte[64 * 1024];
int count;
while ((count = in.read(buffer)) > 0) {
out.write(buffer, 0, count);
}
} finally {
in.close();
out.close();
}
}
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