Monthly Archives: September 2014

Top Utility for Cassandra Clusters – cass_top

DataStax’s OpsCenter is pretty, but sometimes you don’t want to chop holes in your firewall for the server and agents. So I wrote cass_top. It works like top, but colorizes the output of nodetool status. It also lets you build … Continue reading

Posted in Cassandra, Linux, Storage, Tech, Toys | Leave a comment

Perl Clients for Cassandra

The Perl module Net::Async::CassandraCQL supports CQL3 and comes with a few sample programs and several tests. To get the perldoc sample code to work: Perl 5.10 or higher is required. If you’re using Redhat 5 or CentOS 5, then use … Continue reading

Posted in API Programming, Cassandra, Open Source, Perl, Storage, Tech | Leave a comment

Notes on “Getting Started with Time Series Data Modeling” in Cassandra

Patrick McFadin’s tutorial on Getting Started with Time Series Data Modeling aka “The Weather Model” is a very good introduction to a few important concepts in Cassandra: it’s the canonical time series use case in Cassandra. (Try to DESCRIBE the … Continue reading

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MariaDB Patch: CREATE [[NO] FORCE] VIEW Options

Below is my patch that implements the CREATE [[NO] FORCE] VIEW options against MySQL/MariaDB 10.1.0. It adds two new options that look like this: CREATE NO FORCE VIEW v1 AS SELECT * FROM TABLE1; — base TABLE1 must exist, as … Continue reading

Posted in API Programming, Linux, MySQL, Open Source, Oracle, Storage, Tech | 1 Comment

Jenkins Localization

Jenkins, an Open Source continuous integration product written in Java, has some interesting localization features. “Normally, Jenkins honors the browser’s language preference if a translation is available for the preferred language, and uses the system default locale for messages during … Continue reading

Posted in i18n, Indonesia, Open Source, Tech | Leave a comment