May 2019
Intermediate to advanced
600 pages
20h 46m
English
book
PostgreSQL 11 Administration Cookbook
by Simon Riggs, Gianni Ciolli, Sudheer Kumar Meesala, Sheldon Strauch
Content preview from PostgreSQL 11 Administration Cookbook
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Catching queries that only run for a few milliseconds
Since most queries on modern online transaction processing (OLTP) systems take only a few milliseconds to run, it is often hard to catch the active ones when simply probing the pg_stat_activity table.
Most likely, you will be able to see only the last executed query for those backends that have state different from active. In some cases, this can be enough.
In general, if you need to perform a deeper analysis, I strongly recommend installing and configuring the pg_stat_statements module, which is described in the Analyzing the real-time performance of your queries recipe in this chapter. Another option is to run a post analysis of log files using pgBadger. Depending on the workload of ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
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.