Looking for some help. I am using plex via docker (ubuntu server host via VM vSphere). My movies are all stored on a NAS drive via NFS. The docker image is only maintaining its own DB on a HD local to the host machine.
Here is how i have it setup
--- Ubuntu headless server install VM
--- VM image stored on esxi HD
--- Movie / TV Show directories stored on NFS (v3) NAS
The Host is solely setup for plex and is providing 12 cores and 26gb of ram.
What is happening is when watching movies periodically they will fail with a message saying that transcoding failed. Everything on the host itself isn't taxed from a resource perspective at all.
Looking in the logs i see messages such as this
Aug 21, 2017 23:03:56.395 [0x7f9779fff700] ERROR - [Transcoder] av_interleaved_write_frame(): No space left on device
Aug 21, 2017 23:03:56.520 [0x7f97aebfd700] ERROR - [Transcoder] [segment @ 0x1e7c380] Failure occurred when ending segment 'chunk-00480'
This lead me down the road of checking my VM host to see if there were space issues which there shouldn't be considering it is allocated for 150GB.
When I inspect the space on the host here is what i notice. If i look at the docker aufs readout below it sits at 76% with nothing running. As movies are running and transcoding that number will increase until it finally hits 100% and when that happens the transcoder crashes.
root@DockerHost:/var/lib/docker# df -h
Filesystem Size Used Avail Use% Mounted on
udev 12G 0 12G 0% /dev
tmpfs 2.4G 18M 2.4G 1% /run
/dev/mapper/DockerHost--vg-root 14G 9.8G 3.3G 76% /
tmpfs 12G 244K 12G 1% /dev/shm
tmpfs 5.0M 0 5.0M 0% /run/lock
tmpfs 12G 0 12G 0% /sys/fs/cgroup
tmpfs 2.4G 0 2.4G 0% /run/user/1000
none 14G 9.8G 3.3G 76% /var/lib/docker/aufs/mnt/722af28d4904149ec4228a79068dfab6268c7247dae076478c36002fab86db4a
shm 64M 8.0K 64M 1% /var/lib/docker/containers/38e4b17d4f9f0f33c45f11640bba12626192ce4f7645306e7fd82481fd90ad77/shm
If i use other file services it doesn't show that folder being full. It appears as if the docker folder has a max size of 14GB and many of my movies are larger than that. Is there any way to increase that size from the 14GB displayed to something larger such as 40GB?
Any suggestions on what to do to resolve this issue?