Re: Session timeout during large response via setContentStream
Re: Session timeout during large response via setContentStream
- Subject: Re: Session timeout during large response via setContentStream
- From: Helmut Tschemernjak <email@hidden>
- Date: Thu, 11 Dec 2003 09:29:23 +0100
- Organization: HELIOS Software GmbH
Hello Chuck,
we just use a standard WOComponent for the response, we send immediately
data back to the user and the download is starting with about 100Kb/sec
(DSL). The problem is that the download takes about 1.5 hours and
WebObjects is timing out the session while the response is still sending
the content stream provided by the InputStream.
I believe our ZipDownload component returns, the HTTP IO is still
sending data and and the SessionTimeoutManager does not know about it.
I can change the timeout to 24 hours which has the problem that idle
sessions will not timeout within a reasonable time.
> Are you manually checking the session in ? NO
Helmut Tschemernjak
HELIOS Software GmbH
Steinriede 3
30827 Garbsen
Phone: +49-5131-709320
Fax: +49-5131-709325
Internet Mail: email@hidden
Internet Web: http://www.helios.de
--------------------------------------
public class ZipDownload extends WOComponent {
protected iWSFileStream zipfs;
protected Number saveTimeout = application().sessionTimeOut();
public ZipDownload(WOContext context) {
super(context);
}
public void appendToResponse( WOResponse aResponse, WOContext aContext) {
byte[] b;
super.appendToResponse(aResponse, aContext);
aResponse.setHeader("bytes", "Accept-Ranges");
aResponse.setHeader("application/zip", "Content-Type");
aResponse.setHeader("attachment; filename=\"" + "download.zip" + "\"",
"Content-Disposition");
if (zipfs.fsize > 0)
aResponse.setHeader("" + zipfs.fsize, "Content-Length");
aResponse.setContentStream(zipfs.getInputStream(), 8192, zipfs.fsize);
}
public void setFilestream(iWSFileStream fs) {
if (zipfs != null) {
zipfs.Close();
return;
}
zipfs = fs;
session().setTimeOut(24*3600);
}
}
Chuck Hill wrote:
> Are you returning this content in the context of a WO request-response
> loop? It is not supposed to be possible for a session to expire while it
> is checked out of the session store. Are you manually checking the
session
> in?
>
>
> Chuck
At 07:17 PM 10/12/2003 +0100, Helmut Tschemernjak wrote:
Hello,
we have a very large response (e.g.: 600MB), data is provided via
aResponse.setContentStream. After the session timeout of 3600 seconds
the response gets terminated while it is still activate sending about
100KBytes per second!
The WO 5.2.2 stack backtrace for the terminate is:
#0 Session.terminate()
#1 WOSession._terminateByTimeout() at WOSession.java:529
#2 WOSessionStore$_SessionTimeoutManager.run() atWOSessionStore.java:127
#3 java.lang.Thread.run() at Thread.java:554
We use the default 3600 second session timeout value, we don't like to
go to a larger value because we like to cleanup unused sessions.
Has somebody seen a similar problem?
Is there a way to update the sessions activity/access time?
best regards / mit freundlichen Gruessen,
Helmut Tschemernjak
HELIOS Software GmbH
Steinriede 3
30827 Garbsen
Phone: +49-5131-709320
Fax: +49-5131-709325
Internet Mail: email@hidden
Internet Web: http://www.helios.de
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--
Chuck Hill email@hidden
Global Village Consulting Inc. http://www.global-village.net
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best regards / mit freundlichen Gruessen,
Helmut Tschemernjak
HELIOS Software GmbH
Steinriede 3
30827 Garbsen
Phone: +49-5131-709320
Fax: +49-5131-709325
Internet Mail: email@hidden
Internet Web: http://www.helios.de
_______________________________________________
webobjects-dev mailing list | email@hidden
Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/webobjects-dev
Do not post admin requests to the list. They will be ignored.