Some Cassandra gotchas

Here are some points to keep in mind when working with Cassandra. Have to use ordered partitioner if you want row keys in sorted order. Be aware that if the row keys are not distributed properly it would create hot spots since most of rows will be concentrated to several nodes. Columns are sorted using [...]

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JMS Concepts – Persistent and Durable

I was reading up on JMS of late. The more I read the more I got confused about the usage of terms persistent and durable in the context of JMS. Then I found this blog which cleared my issues. Thanks Nigel for the great post. . Anyway here is the gist of that blog I [...]

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Maven Bundle Plugin – Tidbits

I use Maven Bundle plugin a lot since our projects are OSGi based. Basic idea I had of this plugin is that this plugin makes an OSGi bundle out of a normal jar (basically by augmenting the META-INF file) if we do declare exported and private package information correctly in it’s configuration section in the [...]

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wvdial – Chicken egg problem

I was helping one of my relatives to setup his Suntel CDMA dialup with Ubuntu last week. To my surprise I found that wvdial is not present in the standard Karmic Distribution eventhough it was present in my Intrepid box by default. Now I was facing a chicken egg issue having to access internet before [...]

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Kill Processes in Windows Using Command Line

With Ubuntu I use the following to kill an errant process. $ ps -efH | grep [process-name-regex] Get the pid from the result and use $ kill [pid] When working in windows I wanted an equivalent functionality in command line rather than going to task manager window to get the job done. This is what [...]

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