http://spdn.ifas.ufl.edu/docs/config/http.html
(int)The socket receive buffer (SO_RCVBUF) size in bytes. Default value
is 25188
socket.bufferPoolSize
(int)The NioChannel pool can also be size based, not used object based.
The size is calculated as follows:
NioChannel buffer size = read buffer size + write buffer size
SecureNioChannel buffer
size = application read buffer size + application write buffer size +
network read buffer size + network write buffer size
The value is in bytes, the default value is 1024*1024*100 (100MB)
here is an example from $CATALINA_HOME/conf/server.xml
<Connector port="8080"
useSendfile="true"
useExecutor="true"
acceptorThreadCount="1"
pollerThreadCount="1"
pollerThreadPriority="java.lang.Thread#NORM_PRIORITY"
selectorTimeout="1000"
useComet="true"
prcessCache="200"
socket.directBuffer="false"
socket.rxBufSize="25188"
socket.txBufSize="43800"
socket.appReadBufSize="8192"
socket.appWriteBufSize="8192"
socket.bufferPool="500"
socket.bufferPoolSize="100000000"
socket.processorCache="500"
socket.keyCache="500"
socket.eventCache="500"
socket.tcpNoDelay="false"
socket.soKeepAlive="true"
socket.soTimeout="5000"
protocol="org.apache.coyote.http11.Http11NioProtocol"
maxThreads="150"
connectionTimeout="60000"
redirectPort="8443" />
if your OS and container supports sendfile you may want to enable sendfile for
static files
HTH
Martin Gainty
______________________________________________
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> Date: Thu, 4 Jun 2009 15:05:28 -0400
> Subject: Re: Huge File upload in struts 2
> From: greg.lindh...@gmail.com
> To: user@struts.apache.org
>
> I'm not having any problem with 20mb files using Struts 2.1.6 and the
> standard fileUpload interceptor.
> From what I see, Sir Evans is warning you that loading the entire file into
> memory may be a problem if your files are very large. Nowadays 10mb is not
> really that large. If you want to put 10mb pictures into a database as a
> byte array then you really don't have much choice but to load them into
> memory.
>
> Now if you were actually talking about really HUGH files like hundreds of mb
> or multiple gb files (just like Evans said) that is larger then your memory
> then you will need take a different approach such as splitting the file or
> not putting it into the database, instead just store a reference to the
> file.
>
> Have you tried this solution? Have you confirmed you actually have a
> problem?
>
> On Thu, Jun 4, 2009 at 9:58 AM, Johnson nickel <sarava...@elogic.co.in>wrote:
>
> >
> >
> >
> > Hi Evans,
> >
> > I'm facing problem to upload huge file like (size is
> > 7mb,10mb). In your last thread
> > you have specified it will work in only small datas or files. I want to
> > know
> > any other method
> > to solve in struts2 framework.
> >
> >
> > Disclaimer: This approach is limited to small files (multiple megabytes
> > > rather than hundreds/gigs) because of the inefficient memory
> > > consumption. It's also quite slow as the commons fileuploader first
> > > receives all the data, then writes the entire temporary file, then it's
> > > read again entirely into memory, then written back to your
> > > database/filesystem. There's no other built-in approach in Struts2 but
> > > you'll find ajax fileuploaders on the web that handle massive files
> > > better than this.
> >
> > Jeromy Evans - Blue Sky Minds wrote:
> > >
> > >
> > >
> > > Johnson nickel wrote:
> > >> Hi Jeromy Evans,
> > >>
> > >> Thanks for your reply. I would like to insert the images
> > >> into
> > >> my
> > >> Databases. For that, i'm using byte[] array.
> > >> In Struts 1.3,
> > >> I used FormFile class. From this class i got the method
> > >> getFileData();
> > >>
> > >> In my db, ps.setBytes(1,filedata); // to store the
> > binary
> > >> datas in DB.
> > >>
> > >> /*FormFile mtfile = form.getTheFile();
> > >> byte[] filedata = mtfile.getFileData();*/
> > >>
> > >>
> > >>
> > > Ahh, ok.
> > >
> > > In Struts2, the file is a reference to a temporary file created on your
> > > server. If it's not HUGE, just read it into a byte array.
> > > The code follows. This code is a fairly standard approach to read an
> > > arbitrary length inputstream into a byte array one chunk at a time.
> > > If the file can be HUGE, see my comment at bottom.
> > >
> > > byte[] filedata = readInputStream(new FileInputStream(upload));
> > >
> > > /** Read an input stream in its entirety into a byte array */
> > > public static byte[] readInputStream(InputStream inputStream) throws
> > > IOException {
> > > int bufSize = 1024 * 1024;
> > > byte[] content;
> > >
> > > List<byte[]> parts = new LinkedList();
> > > InputStream in = new BufferedInputStream(inputStream);
> > >
> > > byte[] readBuffer = new byte[bufSize];
> > > byte[] part = null;
> > > int bytesRead = 0;
> > >
> > > // read everyting into a list of byte arrays
> > > while ((bytesRead = in.read(readBuffer, 0, bufSize)) != -1) {
> > > part = new byte[bytesRead];
> > > System.arraycopy(readBuffer, 0, part, 0, bytesRead);
> > > parts.add(part);
> > > }
> > >
> > > // calculate the total size
> > > int totalSize = 0;
> > > for (byte[] partBuffer : parts) {
> > > totalSize += partBuffer.length;
> > > }
> > >
> > > // allocate the array
> > > content = new byte[totalSize];
> > > int offset = 0;
> > > for (byte[] partBuffer : parts) {
> > > System.arraycopy(partBuffer, 0, content, offset,
> > > partBuffer.length);
> > > offset += partBuffer.length;
> > > }
> > >
> > > return content;
> > > }
> > >
> > > Disclaimer: This approach is limited to small files (multiple megabytes
> > > rather than hundreds/gigs) because of the inefficient memory
> > > consumption. It's also quite slow as the commons fileuploader first
> > > receives all the data, then writes the entire temporary file, then it's
> > > read again entirely into memory, then written back to your
> > > database/filesystem. There's no other built-in approach in Struts2 but
> > > you'll find ajax fileuploaders on the web that handle massive files
> > > better than this.
> > >
> > > regards,
> > > Jeromy Evans
> > >
> > >
> > >
> > > ---------------------------------------------------------------------
> > > To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
> > > For additional commands, e-mail: user-h...@struts.apache.org
> > >
> > >
> > >
> > Quoted from:
> >
> > http://www.nabble.com/Struts-2-File-upload-to-store-the-filedata-tp14168069p14169822.html
> >
> >
> > --
> > View this message in context:
> > http://www.nabble.com/Huge-File-upload-in-struts-2-tp23870472p23870472.html
> > Sent from the Struts - User mailing list archive at Nabble.com.
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: user-unsubscr...@struts.apache.org
> > For additional commands, e-mail: user-h...@struts.apache.org
> >
> >
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