Operations grimoire/Checklist router post-restart: Difference between revisions
From Nasqueron Agora
(Created page with "A router-001 restart severes GRE tunnels and their existing TCP connections. As such, this checklist notes the known issues when private network is disrupted. To partially prevent this, a blue/green deployment or immutable artifacts should be encouraged. It's recommended for the next non urgent upgrade to create router-002 and move GRE connections to it. The checklist should still be checked. == IRC eggdrops == * Dæghrefn: MySQL is normally at periodic interval reco...") |
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To partially prevent this, a blue/green deployment or immutable artifacts should be encouraged. It's recommended for the next non urgent upgrade to create router-002 and move GRE connections to it. The checklist should still be checked. | To partially prevent this, a blue/green deployment or immutable artifacts should be encouraged. It's recommended for the next non urgent upgrade to create router-002 and move GRE connections to it. The checklist should still be checked. | ||
As most services are currently on hyper-001, they don't need the router to communicate, so lot of things will still be working. | |||
== IRC eggdrops == | == IRC eggdrops == | ||
They require a GRE tunnel between server with viperserv role and the router to connect to both complector (Vault) and a db-B server (MariaDB). | |||
On Libera: | |||
* Dæghrefn: MySQL is normally at periodic interval reconnected, but you can trigger this with <code>.tcl sqlrehash</code> | * Dæghrefn: MySQL is normally at periodic interval reconnected, but you can trigger this with <code>.tcl sqlrehash</code> | ||
* Wearg: MySQL does NOT reconnect, and that will probably exit from the timer | * Wearg: MySQL does NOT reconnect, and that will probably exit from the timer | ||
Latest revision as of 21:35, 12 May 2023
A router-001 restart severes GRE tunnels and their existing TCP connections.
As such, this checklist notes the known issues when private network is disrupted.
To partially prevent this, a blue/green deployment or immutable artifacts should be encouraged. It's recommended for the next non urgent upgrade to create router-002 and move GRE connections to it. The checklist should still be checked.
As most services are currently on hyper-001, they don't need the router to communicate, so lot of things will still be working.
IRC eggdrops
They require a GRE tunnel between server with viperserv role and the router to connect to both complector (Vault) and a db-B server (MariaDB).
On Libera:
- Dæghrefn: MySQL is normally at periodic interval reconnected, but you can trigger this with
.tcl sqlrehash - Wearg: MySQL does NOT reconnect, and that will probably exit from the timer
.tcl sqlrehashto reconnect to MySQL.tcl broker::on_tickto reconnect to broker and start timer to get message.tcl utimersto ensure timer is good, you should see a:broker::on_ticktimer
T1862 offers to detect MySQL issues and reconnect.
