Apache Bridge HTTP POST problems on large file upload

I have a problem uploading files larger than quarter a mega, the jsp
page does a POSTto a servlet which reads the input stream and writes to
a file.
Configuration: Apache webserver 1.3.12 connected to the Weblogic 5.1
application server via the bridge(mod_wl_ssl.so) from WebLogic Service
pack 4.
The upload goes on for about 30 secs and throws the following error.
"Failure of WebLogic APACHE bridge:
IO error writing POST data to 100.12.1.2:7001; sys err#: [32] sys err
msg [Broken pipe]
Build date/time: Jul 10 2000 12:29:18 "
The same upload(in fact I uploaded a 8 MEG file) using the
Netscape(NSAPI) WebLogicconnector.
Any answers would be deeply appreciated.
[email protected]

It appears to be a bug.
I suggest that you file a bug report with our support organization. Be sure
to include a complete test case. They will also need information from
you -- please review our external support procedures:
http://www.beasys.com/support/index.html
Thanks,
Michael
Michael Girdley
Product Manager, WebLogic Server & Express
BEA Systems Inc
"George Abraham" <[email protected]> wrote in message
news:[email protected]..
I have a problem uploading files larger than quarter a mega, the jsp
page does a POSTto a servlet which reads the input stream and writes to
a file.
Configuration: Apache webserver 1.3.12 connected to the Weblogic 5.1
application server via the bridge(mod_wl_ssl.so) from WebLogic Service
pack 4.
The upload goes on for about 30 secs and throws the following error.
"Failure of WebLogic APACHE bridge:
IO error writing POST data to 100.12.1.2:7001; sys err#: [32] sys err
msg [Broken pipe]
Build date/time: Jul 10 2000 12:29:18 "
The same upload(in fact I uploaded a 8 MEG file) using the
Netscape(NSAPI) WebLogicconnector.
Any answers would be deeply appreciated.
[email protected]

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When I try to upload large file( > 10 MB) using HTTP POST MULTIPART/FORM-DATA the web server crashes with the following errors.
[18/Oct/2002:16:52:02] catastrophe ( 600): Server crash detected (signal SIGSEGV) [18/Oct/2002:16:52:02] info ( 600): Crash occurred in function memmove from module /export/home/iplanet/web60sp4/bin/https/lib/liblibdbm.so [18/Oct/2002:16:52:02] failure ( 376): Child process admin thread is shutting down [18/Oct/2002:16:52:05] warning ( 624): On group ls2_default, servername oberon does not match subject "192.168.0.35" of certificate Server-Cert. [18/Oct/2002:16:52:05] info ( 624): Installing a new configuration [18/Oct/2002:16:52:05] info ( 624): [LS ls1] http://oberon, port 80 ready to accept requests [18/Oct/2002:16:52:05] info ( 624): [LS ls2] https://oberon, port 443 ready to accept requests [18/Oct/2002:16:52:05] info ( 624): A new configuration was successfully installed [18/Oct/2002:16:52:05] info ( 624): log.cpp:openPluginLog() reports: Environment variable IAS_PLUGIN_LOG_FILE is not set. All plugin messages will be logged in the web server log file
[21/Oct/2002:10:40:02] catastrophe ( 1210): Server crash detected (signal SIGSEGV) [21/Oct/2002:10:40:02] info ( 1210): Crash occurred in NSAPI SAF gxrequest [21/Oct/2002:10:40:02] info ( 1210): Crash occurred in function __1cIGXBufferLAllocMemMap6ML_L_ from module /export/home/iplanet/app65mu3/ias/gxlib/libgxnsapi6.so [21/Oct/2002:10:40:02] failure ( 715): Child process admin thread is shutting down [21/Oct/2002:10:40:05] warning ( 1230): On group ls2_default, servername oberon does not match subject "192.168.0.35" of certificate Server-Cert. [21/Oct/2002:10:40:05] info ( 1230): Installing a new configuration [21/Oct/2002:10:40:05] info ( 1230): [LS ls1] http://oberon, port 80 ready to accept requests [21/Oct/2002:10:40:05] info ( 1230): [LS ls2] https://oberon, port 443 ready to accept requests [21/Oct/2002:10:40:05] info ( 1230): A new configuration was successfully installed
Do I need to set anything in the web server or app server? Any help is appreciated.

Be sure to rollback to 16.0.1; the initial v16 update had serious security flaw.

Tips or tools for handling very large file uploads and downloads?

I am working on a site that has a document repository feature. The documents are stored as BLOBs in an Oracle database and for reasonably sized files its not problem to stream the files out directly from the database. For file uploads, I am using the Struts module to get them on disk and am then putting the blob in the database.
We are now being asked to support very large files of 250MB+. I am concerned about problems I've heard of with HTTP not being reliable for files over 256MB. I'd also like a solution that would give the user a status bar and allow for restarts of broken uploads or downloads.
Does anyone know of an off-the-shelf module that might help in this regard? I suspect an ActiveX control or Applet on the client side would be necessary. Freeware or Commercial software would be ok.
Thanks in advance for any help/ideas.

Hi. There is nothing wrong with HTTP handling 250MB+ files (per se).
However, connections can get reset.
Consider offering the files via FTP. Most FTP clients are good about resuming transfers.
Or if you want to keep using HTTP, try supporting chunked encoding. Then a user can use something like 'GetRight' to auto resume HTTP downloads.
Hope that helps,
Peter
http://rimuhosting.com - JBoss EJB/JSP hosting specialists

Apache Bridge HTTP POST problems on large file upload

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