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13 October, Sunday, 12:00 UTC
Lemmy Cafe will be having its database upgraded.
Reasons
- PostgreSQL 17 has been released and the changelog is promising a lot of IO improvements. Lemmy sure could use it given the constant stream of small events flowing in.
Plan
- Point
nginxto the maintenance page - Shut down PostgreSQL 16
- Run the upgrade tool
- Start up PostgreSQL 17
- Point
nginxto lemmy
Expected downtime
About an hour, if things go well. More if not so.
Will try to keep the maintenance page updated.
Here's the timezone converter.
2 February 10AM UTC
Lemmy Cafe will be having its database upgraded.
Reasons
- Pict-rs is expecting PostgreSQL 16. It's running fine now, but it might not be at some future point.
- PostgreSQL 15 has a bug that requires
jitto be turned off - otherwise DB keeps consuming all the memory available on the system and then some. In the end it gets culled by the kernel. This has performance as well as reliability issues. While turningjitoff has remedied the constant failure, it has also made the database a bit slower. I prefer squeezing out as much performance as possible :)
Plan
- Point
nginxto the maintenance page - Shut down PostgreSQL 15
- Run the upgrade tool
- Start up PostgreSQL 16
- Point
nginxto lemmy
Expected downtime
About an hour, if things go well. More if not so.
Will try to keep the maintenance page updated.
Here's the timezone converter