Multiple issues - unable to write to cache, /var/log full

[jamesp469]

Hello, hope someone is able to help me figure this one out.  I've been having the /var/log full error for a bit of time now; rebooting always kicks the can down the road for a month or two.  But now that error is being coupled with some other ones, and I'm not sure where to start looking.  Attached is my diagnostics, thanks in advance.

unraid-diagnostics-20220302-0840.zip

[JorgeB]

Cache filesystem is fully allocated so you need to re-balance to free up some unallocated space for new metadata chunks to be created, more info below:

 

https://forums.unraid.net/topic/62230-out-of-space-errors-on-cache-drive/?do=findComment&comment=610551

 

On a side note there's a very high metadata usage compared to data, not that this is necessarily bad, just unusual, do you have a lot small of files up to 2KB?

[jamesp469]

4 minutes ago, JorgeB said:

Cache filesystem is fully allocated so you need to re-balance to free up some unallocated space for new metadata chunks to be created, more info below:

 

https://forums.unraid.net/topic/62230-out-of-space-errors-on-cache-drive/?do=findComment&comment=610551

 

On a side note there's a very high metadata usage compared to data, not that this is necessarily bad, just unusual, do you have a lot small of files up to 2KB?

Thanks, I thought I cleared out a decent chunk of space (~100GB) but maybe I'm wrong there.  For the high metadata, could that be from Plex?

[JorgeB]

24 minutes ago, jamesp469 said:

I thought I cleared out a decent chunk of space (~100GB)

The problem is not free space, it's free unallocated space.

 

25 minutes ago, jamesp469 said:

For the high metadata, could that be from Plex?

Possibly, I don't use it but remember reading it uses a lot of small files.