Version: TrueNAS-12.0-U7
CPU: Intel(R) Core(TM) i3-4170 CPU @ 3.70GHz
Memory: 16GB ECC
Storage: 1 volume with 1 vdev of 6 X 3TB drives in RaidZ2
I have a really weird issue that just started happening in the past couple of weeks. I run a Plex jail and every day I've been waking up to a notification that the Plex server is down.
When I look into the logs it shows I'm running out of swap space (which shouldn't be used in the first place) and that is causing the server to kill Plex.
The strange part is that this server has been working absolutely fine with this amount of ram for years without this problem. The only thing I can think of that happened around the same time as this issue was I upgraded to 12.0-U7 but I reverted to 12.0-U5 and the issue stayed.
When I check the logs I get the following:
And when I check swap usage in the morning it's around a few hundred MB out of a total of 4GB, with the main user of swap being SMB - but here's the thing, I don't use SMB and have disabled the service every time but it keeps re-enabling itself.
I did enable autotune at one point but this was over a month ago, with this issue only happening in the last two weeks. I deleted all the tunables that autotune created but no luck.
I'm at a loss and have no idea what's eating up all my memory to the point that swap is being used.
I don't think the answer is more ram. I realise I don't have that much and more is always better, but this problem is clearly the result of something manifesting recently and I want to fix the underlying issue rather than mask the symptoms.
What can I do from here to troubleshoot this?
CPU: Intel(R) Core(TM) i3-4170 CPU @ 3.70GHz
Memory: 16GB ECC
Storage: 1 volume with 1 vdev of 6 X 3TB drives in RaidZ2
I have a really weird issue that just started happening in the past couple of weeks. I run a Plex jail and every day I've been waking up to a notification that the Plex server is down.
When I look into the logs it shows I'm running out of swap space (which shouldn't be used in the first place) and that is causing the server to kill Plex.
The strange part is that this server has been working absolutely fine with this amount of ram for years without this problem. The only thing I can think of that happened around the same time as this issue was I upgraded to 12.0-U7 but I reverted to 12.0-U5 and the issue stayed.
When I check the logs I get the following:

And when I check swap usage in the morning it's around a few hundred MB out of a total of 4GB, with the main user of swap being SMB - but here's the thing, I don't use SMB and have disabled the service every time but it keeps re-enabling itself.
I did enable autotune at one point but this was over a month ago, with this issue only happening in the last two weeks. I deleted all the tunables that autotune created but no luck.
I'm at a loss and have no idea what's eating up all my memory to the point that swap is being used.
I don't think the answer is more ram. I realise I don't have that much and more is always better, but this problem is clearly the result of something manifesting recently and I want to fix the underlying issue rather than mask the symptoms.
What can I do from here to troubleshoot this?
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