-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 All,
I have Tomcat 7.0.27 fronted with Apache httpd 2.2 using mod_jk 1.2.35. We have a new feature to upload images into our webapp. It uses Struts 1.3's multipart form parser to actually get the bits from the request. It's got a feature where you can get a request attribute set for you if the upload exceeds a certain size. When we see that, we abort right away, sending the user to an error page via a forward (Struts does this for us) which should return a 200 OK response. In the browser (Firefox 11.0 and 12.0 in our case), we can see the throbber work for a good 10-20 seconds *after* the upload has failed - -- our code has stopped running -- apparently waiting for something. I've done thread dumps during idle times and during this long period of waiting and they are /identical/ -- even the md5sums are the same. That suggests to me that Tomcat and our webapp have completely washed their hands of the request. The only possibility I can see here is that Apache httpd hasn't closed the connection. I'm going to be adding an access log that shows the response time just to be sure, but can anyone think of anything that might be causing this delay? On a hunch that it was a keep-alive sitting there hung, I explicitly set a "Connection:close" header in the response just to test. That appears to have done nothing. - From the investigations so far, it seems that the "problem" really could just be the upload time: I tried to scp the file to the server and it took about 20 seconds (which seems insane to me for an 11MiB upload, but that's an issue between me and my ISP) so maybe just pushing the bits is the issue. Since Tomcat appears to be idle pretty much right away, the issue has to be either mod_jk or httpd, or the browser itself. Is there anything I can do at the web server level to sever the connection ASAP? Or is this just a stubborn browser that refuses to give up until the last byte has been sent? Thanks, - -chris -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.17 (Darwin) Comment: GPGTools - http://gpgtools.org Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iEYEARECAAYFAk+ZrnsACgkQ9CaO5/Lv0PDCfQCgwE0tZRVYg0LQPKcA+QmEv1cX MXcAn0qt5bSa4OKb74omJ6UJA8lwak1f =qIxu -----END PGP SIGNATURE----- --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
