hi all system crashed again.dockers not working and cache unusable on reboot.managed to get logs this time.

if any one can have a look and give me any ideas i will be realy gratefull.

cheers..

 

unraid-diagnostics-20200914-1905.zip unraid crash.txt

Looks like you have corrupt docker.img. Delete and recreate

 

Also, appdata has some files on the array. Is this intentional? Having them on the array may impact performance and keep disks spunup.

hi i tried that but the docker service wont start.the logs show the following errors.

 

Sep 14 23:36:34 unraid emhttpd: shcmd (4238): /usr/local/sbin/mount_image '/mnt/user/system/docker/docker.img' /var/lib/docker 30
Sep 14 23:36:34 unraid root: truncate: cannot open '/mnt/cache/system/docker/docker.img' for writing: Read-only file system
Sep 14 23:36:34 unraid kernel: BTRFS info (device loop2): disk space caching is enabled
Sep 14 23:36:34 unraid kernel: BTRFS info (device loop2): has skinny extents
Sep 14 23:36:34 unraid kernel: BTRFS info (device loop2): start tree-log replay
Sep 14 23:36:34 unraid kernel: BTRFS warning (device loop2): log replay required on RO media
Sep 14 23:36:34 unraid root: mount: /var/lib/docker: can't read superblock on /dev/loop2.
Sep 14 23:36:34 unraid kernel: BTRFS error (device loop2): open_ctree failed
Sep 14 23:36:34 unraid root: mount error
Sep 14 23:36:34 unraid emhttpd: shcmd (4238): exit status: 1
Sep 14 23:40:23 unraid ool www[7324]: /usr/local/emhttp/plugins/dynamix/scripts/emcmd 'cmdStatus=Apply'
Sep 14 23:40:23 unraid emhttpd: Starting services...
Sep 14 23:40:23 unraid emhttpd: shcmd (4250): /etc/rc.d/rc.samba restart
Sep 14 23:40:25 unraid root: Starting Samba: /usr/sbin/smbd -D
Sep 14 23:40:25 unraid root: /usr/sbin/nmbd -D
Sep 14 23:40:25 unraid root: /usr/sbin/wsdd
Sep 14 23:40:25 unraid root: /usr/sbin/winbindd -D
Sep 14 23:40:34 unraid ool www[8460]: /usr/local/emhttp/plugins/dynamix/scripts/emcmd 'cmdStatus=Apply'
Sep 14 23:40:34 unraid emhttpd: Starting services...
Sep 14 23:40:34 unraid emhttpd: shcmd (4260): /etc/rc.d/rc.samba restart
Sep 14 23:40:36 unraid root: Starting Samba: /usr/sbin/smbd -D
Sep 14 23:40:37 unraid root: /usr/sbin/nmbd -D
Sep 14 23:40:37 unraid root: /usr/sbin/wsdd
Sep 14 23:40:37 unraid root: /usr/sbin/winbindd -D
Sep 14 23:40:37 unraid emhttpd: shcmd (4274): /usr/local/sbin/mount_image '/mnt/user/system/docker/docker.img' /var/lib/docker 30
Sep 14 23:40:37 unraid root: truncate: cannot open '/mnt/cache/system/docker/docker.img' for writing: Read-only file system
Sep 14 23:40:37 unraid kernel: BTRFS info (device loop2): disk space caching is enabled
Sep 14 23:40:37 unraid kernel: BTRFS info (device loop2): has skinny extents
Sep 14 23:40:37 unraid kernel: BTRFS info (device loop2): start tree-log replay
Sep 14 23:40:37 unraid kernel: BTRFS warning (device loop2): log replay required on RO media
Sep 14 23:40:37 unraid root: mount: /var/lib/docker: can't read superblock on /dev/loop2.
Sep 14 23:40:37 unraid kernel: BTRFS error (device loop2): open_ctree failed
Sep 14 23:40:37 unraid root: mount error
Sep 14 23:40:37 unraid emhttpd: shcmd (4274): exit status: 1

 

any ideas?

cheers..

Cache filesystem is corrupt, you need to backup and reformat, then recreate docker image.

cheers mate i have done that and its all working again.this is the 3rd time this has happened.any ideas why it would do this.

If cache keeps getting corrupt without an apparent reason that usually indicates a hardware problem.