With the release of PostgreSQL 10, I’ve updated my pg script. You might recall from previous posts that this script is for Homebrew users that have tapped Peter’s brew recipes. It allows for installing and switching between multiple version of PostgreSQL seemlessly. While I was in there adding v10 support, I tweaked and tuned the code a bit and tidyied up the output significantly. I’m pretty pleased with the new version actually.
Connecting to a PostgreSQL instance isn’t hard generally, but sometimes you can run into issues. Sometimes a port isn’t open on a firewall, or the server is in a VLAN that you can’t get to, or perhaps the server isn’t running on the network interface you think it is. More commonly, you can reach the PostgreSQL instance but you’re connection isn’t authorized (which is not the same as being unable to authenticate). Fortunately, the error messages returned in these different failure scenarios are fairly verbose and distinct so you can easily tell which scenario you’re facing. Let’s dive into each scenario and see what the error looks like, shall we?
read moreIf you’ve followed my previous posts (here and here), then you already have one or more versions of PostgreSQL installed on your Mac. Maybe these are solely for test or dev purposes and you don’t really care about any of the data therein, but if you do, let me guide you to pgBackRest.
read more
We’ve all gotten the dreaded email/call from a user stating that a query is “slow sometimes”. If you’re lucky, the “sometimes” actually ends up being fairly consistent and you can fairly easily determine what’s happening (an errant cron job, for example). All too often though, the issue really is sporadic, fleeting, and indeterministic. So how do you track these down? And more importantly what do you do about them once found?
read morePostgreSQL has a pretty extensive logging facility. I’ve talked briefly about configuring it to get the most out of pgBadger before, but today I’m gonna talk a bit about the naming of the log file itself. The chosen filename doesn’t have to be static. You can, in fact, have the name dynamically created by using strftime() escapes. But what exactly are those?