Home » Author Archives: Spyros Doulgeridis

Author Archives: Spyros Doulgeridis

Dealing with Weblogic Stuck Threads

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Definition or What is a Stuck Thread?   WebLogic Server diagnoses a thread as stuck if it is continually working (not idle) for a set period of time.  You can tune a server’s thread detection behavior by changing the length of time before a thread is diagnosed as stuck ( Stuck Thread Max Time), and by changing the frequency with ...

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Cost of Ownership Analysis: Oracle WebLogic Server vs. JBoss

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A very interesting whitepaper by Crimson Consulting Group comparing the cost of ownership between Weblogic and JBoss. Although JBoss is free, the whitepaper has serious claims that on the long run Weblogic is cheaper. Although, this study was sponsored by Oracle, it seems to be very serious and definitely is worthy of a look. Below some interesting parts from the whitepaper: JBoss costs ...

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Decompiling Mega Vendors behaviour and future strategics (Microsoft, IBM, Oracle and SAP)

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IT News have an excellent article about the latest Gartner Symposium, where one of Gartner analyst Dennis Gaughan gave a broad overview of the strategic direction of the world’s largest application vendors IBM, Microsoft, Oracle and SAP. Below are some keynotes and related “quotes” from Mr. Dennis Gaughan. IBM IBM wants to manage you. Quoting Mr. Gaughan “The number one ...

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Roles in the IT World

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The following comic is a matrix, each entry is how one kind of employee views another. Description : Product managers view themselves as orchestra conductors. Site reliability Engineers view the product managers as a person asking for a space shuttle launch. Software engineers view the product manager as a person sitting in front of a computer, checking and responding to ...

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JVM options: -client vs -server

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Have you ever wonder what is this -client or -server switch when you run your java app? e.g.: javaw.exe -client com.blogspot.sdoulger.LoopTest that are also displayed in the Help of the java.exe e.g. where options include: -client to select the “client” VM -server to select the “server” VM What’s the difference between the -client and -server systems? These two systems are ...

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