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rdg42

143 karma · joined September 27, 2020

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rdg42··on S5cmd: Parallel S3 and local filesystem execution tool
s5cmd is not listed here https://www.rsync.net/resources/howto/remote_commands.html ? :-)
rdg42··on The worst bug we faced at Antithesis
Great read!

But...

“Can you check /var/log/messages and see if there’s messages every 30 minutes about ENA going down and then back up?”

Isn't this "sysadmin 101" ? Like... the first thing to check on any server exhibiting weird behaviour ? :-) A message about a NIC going up & down every 30min would have triggered many here instantly.

Interesting journey nevertheless!

rdg42··on Total data loss after botched GitOps and failed backups
Thank you! Had to scroll way too much to read that.

On production systems "reclaimPolicy: Retain" on the storageClass feels like a no brainer to (mostly) avoid such disaster.

rdg42··on Unbounded memory usage by Linux TCP for receive buffers, and how we fixed it
Nice writing, investigation and findings that will benefit to a lot!

The before/after graphs are impressive.

Thanks Cloudflare falks

rdg42··on Post-GPT Computing
Mixing up OpenAI with OpenAPI here ?
rdg42··on Mastering PostgreSQL Administration [pdf]
You should have a look at https://github.com/citusdata/pg_auto_failover

This project makes is super easy to setup a resilient and highly-available postgresql cluster.

And since the postgresql client lib handle connection to multiple replica... no need for some kind of load-balancer (pg_bouncer, pgpool...) in front of it anymore (even if they can still be useful sometimes).