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Showing posts from August, 2006

Tip: DSpace on Windows XP: A Batch File for Compilation (or Recompilation) of the MediaFilterManager Full-text Index

For DSpace Users in Windows Platform: If you haven't already known, here's a workaround I discovered today after spending 1-2 hours trying to enable the full-text indexing feature of the DSpace Digital Library software in Windows XP Professional SP2 on my laptop: In Unix or Linux the "filter-media" shell script in [DSpace]/bin needs to be manually scheduled ( cron ) for daily update of the full-text database. The Windows counterpart of the "filter-media" shell script is not provided in the DSpace distribution. With the environmental variable DSPACE_HOME set to C:\DSpace , a "filter-media.bat" batch file is written. "filter-media.bat" can be manually run periodically or scheduled to be run automatically by Windows (to further investigate how to schedule a task). Essentially, "filter-media.bat" is simply a batch file that executes the class MediaFilterManager in the package org.dspace.app.mediafilter -- by using the batch-fil

Tip: Configuring Blojsom for Tagging and a del.icio.us-like Tag Cloud

I am looking for a blog server for my present research in the application of blogs and digital libraries in knowledge management. Blojsom and Pebble, two Java blog servers for hosting under Tomcat 5, seem interesting to me. Blojsom is a well-established product and is the technology that underlies Apple Mac OS X Server Collaboration Services . It comes with a wide variety of plug-ins (which imply its extensibility) and is also accompanied by a good-looking javadoc . Pebble, on the other hand, impressed me with its fancy support for del.icio.us-like tagging –see the developer's own blog here for example. But after spending some time looking at its documentation and mailing list on SourceForge , despite the developer's enthusiasm to support the community of users, I found Pebble less friendly to 3rd-party developers than Blojsom and anticipated troubles–with me and the developer–adapting it to my research work. Therefore...I think I would rather go with Blojsom. I spent some tim

PHP WebDev: Resolving an 'Unable to Fork' Warning in Windows

Resolving an unable to fork PHP warning in Windows I was trying to execute a PHP script which launches a batch file in Windows. Althought I verified that the path to my batch file is in the PATH environmental variable, I always get the following error: Warning: system() [function.system]: Unable to fork This problem happens now that I use Microsoft Internet Information Server (IIS) as the web server. It didn't happen when I was using Apache HTTP Server 2.0. After 15 minutes on Google here's what I found out: PHP's Unable to Fork problem is related to Windows security setting. By default, the system's "Internet Guest Account"–the IIS's anonymous web client account–is explicitly blocked from executing cmd.exe –the command line shell. At the risk of system security being compromised , according to the instruction on Somacon.com , we can allow the Internet Guest Account to execute cmd.exe by: Open Windows Explorer and browse to the c:\windows\system32 or c:

Windows Live Messenger: Error Code: 80048820 (80048439)

Fanatic Live - All about MSN Messenger & Windows Live technologies If you're using a NetGear wireless router and you're experiencing Windows Live Messenger (or MSN Messenger) Error Code: 80048820 / Extended Error Code: 80048439, try reducing the size of the MTU (Maximum Transmission Unit) in the Router's WAN Setup page – from 1500 bytes to 1400 bytes. (However, see Updates below for optimal values.) I have had this problem for several months. My office network is connected to the Internet via a set of transparent proxy servers. Windows Live Messenger's does not detect any connection problem. However, it just does not sign on! Today I looked into this problem again, and fortunately after Googling for a while, I found a viable solution from Fanatic Live website: Stretch suggested that NetGear users go to the WAN Setup page and change the MTU size to 1400 bytes. I followed his suggestion and it worked like charm! Thanks, Stretch. I appreciate it! Keywords: msn-mess