Monthly Archives: February 2009

Using AJAX intelligently…

In the last few years AJAX (Asynchronous Javascript And Xml) has become quite popular and has found it’s way into may enterprise applications. To this end there are some things to remember when using AJAX that might significantly help your … Continue reading →

Posted in Java, Perl, Scripts, Tuning, WebSphere | Tagged , , | Comments Off

M/M/c queues and legacy JDBC connection pool sizing

So, this is a decent intersection of Computer Science and legacy Java (the *NEW* COBOL) apps using some of Little’s Law, and an M/M/c queuing model… Most recent versions of JDBC drivers allow multiple statements to be issued on a … Continue reading →

Posted in J2EE, JDBC, Java, Legacy, Models, Sizing, Tuning, WebSphere | Tagged , , , , , | 1 Comment

WebSphere SECJ0270E LDAP error code 53 – Unwilling to perform

So – if you’re using WebSphere 6.0 and using ITDS with LTPA for your ‘wasadmin’ authentication and come across an LDAP error code 53 – unwilling to perform… error, chances are that your dmgr password and your wasadmin password (in … Continue reading →

Posted in AIX, Linux, Scripts, Solaris, UNIX, WebSphere | Tagged , , , , , | 2 Comments

Performance Wiki has a blog…

So I was poking around PerformanceWiki and noticed that they have a blog over there now. It looks like they’re off to a pretty good start. I submitted some comments on WebSphere/JVM performance on Linux and a post about ‘IO … Continue reading →

Posted in Linux, Tuning, WebSphere | Tagged , , | Comments Off