BBB filling disk

[mokkin]

I wanted to run the upgrade to 2.4 but the console told my there is no space left. And indeed, BBB is flooding the disk:

df -h
Filesystem      Size  Used Avail Use% Mounted on
udev            1,9G     0  1,9G   0% /dev
tmpfs           394M  1,9M  392M   1% /run
/dev/sda3        39G   37G  575M  99% /
tmpfs           2,0G     0  2,0G   0% /dev/shm
tmpfs           5,0M     0  5,0M   0% /run/lock
tmpfs           2,0G     0  2,0G   0% /sys/fs/cgroup
/dev/sda2       976M  398M  512M  44% /boot
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/92e096affb086530d3860bddeebabc256a197a89832752257f014b2dbf609db5/merged
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/785508e53a80a7117252c9bed7fa6fbfcd0bf6961b0a25de7d9b67ebf5975052/merged
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/6d0cd7d60b0e08db1e4a0855d1385fc10fd9e67e7a29cb414e65fd75f07b7946/merged
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/171d9c47f599167079918c04265a76d0255ed7f1b1eeb3de0fa9577e8dbff537/merged
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/7366acebf961ef70add31222e9f3660beb342ac7fa36bcd980444ed9ce47b4f0/merged
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/7c310536b6897e2cee40bca0867a108c34b84e2ab77290291a432aaf53ade522/merged
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/f89b50b54e33610ea7960cbc092bef28276bd45ad7f8466b9e713abbaf5c2670/merged
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/cac631bee8bf0deea87c3066146e6ecf4fa1bccb079c8413677a57aa5c9a5eef/merged
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/824cf93fef45807b061821927883cde7e5bd44f82d547162d91d248f97c3c662/merged
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/73fa40db3a5f5d5ef518725f0149b1b060dc4fbccaef724e8ebb9953200cb45d/merged
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/c21a09bd909ce6c3d3cf4ebab69303759e14241f40eeee8fc828e70e31a33db3/merged
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/377fae7561f204c5c02c90536fef09df1e7707dd92c3ceb3b06e3be9f0ac8a11/merged
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/f663de336d1c9a8171bf4c42e43f53f503b2b4252e0b8db6e0ccf1aebdb36084/merged
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/544a7621bdf63f2781f29a2f4e10df1c478eba015ce4443c70719ae311210feb/merged
shm              64M  392K   64M   1% /var/lib/docker/containers/025ba330bc4cc2a761e93a0027d5f1365aa744d4603268275f8268054d2d7393/mounts/shm
shm              64M     0   64M   0% /var/lib/docker/containers/931d2ff1b47bfafdf8b058f8a040c02e5aaf9d299f2fdb0cffe2e0e9cbb83004/mounts/shm
shm              64M     0   64M   0% /var/lib/docker/containers/0e0a3efb88a8a8ee29ae656fe6e718a0c6e5aaf90c6ef44411e3dc94f3adacfa/mounts/shm
shm              64M     0   64M   0% /var/lib/docker/containers/2c1f8e3f1780431b6940499eab428cbf238bddee87e5d289c04635236647bab8/mounts/shm
shm              64M     0   64M   0% /var/lib/docker/containers/1f795fc4e8186a8bdcd8ccdd93cc065a2545c40ae2986dcc9628fbe5de276a05/mounts/shm
shm              64M     0   64M   0% /var/lib/docker/containers/2fcb1b7cc3abce7b1a6fee50907891688869154ed9f2e8621451745f049d0e32/mounts/shm
shm              64M     0   64M   0% /var/lib/docker/containers/32c9d5145e18d10c65b612966f4dd59941475b6af065f91deda608ab2816dfc7/mounts/shm
shm              64M     0   64M   0% /var/lib/docker/containers/3d87ea79aa72c6e38ebeaa53e294c208ada3134187c7233f4b05451bc9e8652b/mounts/shm
shm              64M     0   64M   0% /var/lib/docker/containers/30e3aa95e7137c3b38afab867cd72a371f97c7c563042984a5361900beee9a47/mounts/shm
shm              64M     0   64M   0% /var/lib/docker/containers/263602853b7481bfa08710b240b75df7fbd2a348e22ec20bda073273d725f88f/mounts/shm
shm              64M     0   64M   0% /var/lib/docker/containers/671504f7367e8fa045def65902566058dd4ecb3f5105309ccf9826bea28a0243/mounts/shm
shm              64M     0   64M   0% /var/lib/docker/containers/285d6e673deddf634a877389ac598a03670337181edac8778cc4db852dde36a9/mounts/shm
shm              64M     0   64M   0% /var/lib/docker/containers/9c4ebb9f3d81efbc4f6fcd5640bd82a985f693c8b0c22b4d6b998e2b8bfffa08/mounts/shm
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/1a742f6eb3a04ec3ec9d97a841def88d3c5fbcb64217cb08ee467df00aacdb25/merged
shm              64M     0   64M   0% /var/lib/docker/containers/15aed020d17ece3b767078a9864fa8b372cec7447f6a59fd813100042b032538/mounts/shm
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/9afea3f713f4de02b1acd3e8177c3af8174e5d1874d92b305ce194c7553862d4/merged
shm              64M     0   64M   0% /var/lib/docker/containers/1683a19a9325f9e9dc8164c1742261799a4cfe523b2b847e8fc46ff69e1103d7/mounts/shm
tmpfs           394M     0  394M   0% /run/user/0
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/97b3364f0ac6348e98fb9b85193eacaba89b956af81df9c078e54dd3c57b8fe1/merged
shm              64M     0   64M   0% /var/lib/docker/containers/f97c6ed567e70e3ae3cff5b04f15c378293e40cf7fc00bb1afc12f6731c57063/mounts/shm
overlay          39G   37G  575M  99% /var/lib/docker/overlay2/e6b6d66ecd9f0e6aa8916e2de9bfa68dd07324a660ead26777431e669234f793/merged
shm              64M   16K   64M   1% /var/lib/docker/containers/f1c49bf5b9c6c1ed09b20236ec3997b7f0a0bfeb4e361f7313f5ec0a135d6582/mounts/shm
shm              64M     0   64M   0% /var/lib/docker/containers/7d6e53c6a26ac2af6a555c8bf415a62bbba753d6cd7e3291d3fae9bd9432ad57/mounts/shm

A friend told me, it might be the recording feature. We don't record sessions at all, but he meant, BBB is always recording it in the background. How can I safely free some space and avoid this in the future?

[mokkin]

As a workaround I deleted

/var/lib/docker/volumes/bbb-docker_bigbluebutton/_data/recording/raw
/var/lib/docker/volumes/bbb-docker_vol-kurento/_data/recordings

to continue the upgrade.

[alangecker]

if you have ENABLE_RECORDING=false in your .env, recordings shouldn't bother you ;)

what also eats up plenty of disk space are old docker images. maybe try a docker system prune?

[mokkin]

maybe try a docker system prune?

This was a very good idea and has set about 11GB free, thank you!