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I think the entire point of this post is just to share a war story and help others understand some Redis problems and debugging steps. It isn't some deeper opti
by mdeeks 4y ago
I think the entire point of this post is just to share a war story and help others understand some Redis problems and debugging steps. It isn't some deeper optimization guide or anything. This exact problem is something I have caused and encountered multiple times in my career now. On my first day at Instacart the entire site was down in an extended outage due to a hot key issue exactly like this. I think stories like this are worth sharing with the community even if it seems trivial to yourself.
- bravetraveler 4y agoThat's fair, there is value (to someone) in showing how the sausage is made. That said, the diagnostics exhibited here are the exact things I'd do, as a person who visits Redis once maybe every two years. They're not exactly groundbreaking, and I was hoping to find revelations here; not basics. Looking at what the cluster as a whole is doing, and a specific node, and trying to move it. Amazing.