Hive does not handle IN and NOT IN the same way as MySQL or PostgreSQL, so these patterns can be rewritten with joins.
A Simple Shell Script to Measure Linux Network Traffic
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A small shell script that estimates inbound traffic on a Linux network interface over a configurable time window.
Common Reasons Why Crontab Jobs Stop Working
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A quick checklist for troubleshooting broken crontab jobs, including syntax issues, service status, file format, and permissions.
Hello Hexo!
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A short note about moving the blog and rebuilding it with GitHub Pages and Hexo.
Hello World
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The default first post generated by Hexo.