[plug] xfs errors?

[Brad Campbell]

On 19/7/22 21:12, Brad Campbell wrote:
> On 19/7/22 20:55, Brad Campbell wrote:
> 
>> I might treat this as a trigger to go and have another look at moosefs.
> 
> This might be what put me off last time :
> 
> ---quote---
> The most important factor in sizing requirements for the Master Server machine is RAM, as
> the full file system structure is cached in RAM for speed. The Master Server should have
> approximately 300-350 MiB of RAM allocated to handle 1 million objects (files, directories,
> pipes, sockets, ...).
> Example:
> • Leader Master RAM usage: 20 GiB (21 017 505 792 Bytes exactly)
> • ”All FS objects” (from MFS CGI): 67 552 270
> • 21 017 505 792 / 67 552 270 = ∼311.13 Bytes per one object
> ---quote---
> 
> 311.13 bytes per object. That's a lot of ram for 14.6 thousand million objects.
> It might not "quite" scale far enough for me because I don't think I can afford ~4PB of RAM.
> 

Huh. While xfs_repair rolled on to 14.6 billion inodes, df -i shows 147 million. That's only ~50GB of ram.
Still a lot.