Home » Author Archives: Lim Han

Author Archives: Lim Han

Agile is a simple topic

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Agile manifesto is probably one of the best ever written manifestos in software development if not the best. Simple and elegant. Good vs Bad 1 2 3 4, done. It is so simple that I am constantly disappointed by the amount of stuff that floating on the Internet about, what is agile what is not, how to do agile, Scrum, ...

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The Emergence of DevOps and the Fall of the Old Order

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Software Engineering has always been dependent on IT operations to take care of the deployment of software to a production environment. In the various roles that I have been in, the role of IT operations has come in various monikers from “Data Center” to “Web Services”. An organisation delivering software used to be able to separate these roles cleanly. Software ...

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Using Git

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Using Git When it comes to Software Version/Configuration Management, there might be a whole lot of vendor or open source implementations to choose from but in recent years, there’s none that could parallel Git in terms of being the most development/hacking friendly. I’ve used quite a few different forms of software management tools, from the CVS/SVN family to the Clearcase/Perforce ...

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MySQL Transaction Isolation Levels and Locks

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Recently, an application that my team was working on encountered problems with a MySQL deadlock situation and it took us some time to figure out the reasons behind it. This application that we deployed was running on a 2-node cluster and they both are connected to an AWS MySQL database. The MySQL db tables are mostly based on InnoDB which ...

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