October 2010
Intermediate to advanced
468 pages
11h 35m
English
Content preview from PostgreSQL 9.0 High PerformanceBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Summary
It seems fitting that a database filled with data can also produce its own set of data, by monitoring its internal activity and statistics. While in many cases it's more appropriate to set up monitoring using pre-built external tools, as covered in the next chapter, knowing how to directly query and derive interesting values from the database's activity and statistics collector can prove valuable. And when it comes to troubleshooting system performance issues, monitoring activity and locking data yourself is a must.
- The database statistics are exposed using views you can either use all of, or reinterpret by joining with additional system catalog and activity data.
- Most statistics are cumulative values. You'll either need to track how they ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.