linkmeddle

LINKed MEDia DL

linkmeddle.py had core code; most should work via that. Some others require the other scripts.

Dependencies

• See requirements.txt
• ffmpeg
• rabbitmq-server
• redis-server
• git (needed for development)
• python3-pip (needed for install)
• screen (recommended)

Raspberry Pi hardware tips

• keep an eye on CPU temp with $ vcgencmd measure_temp; bad things seem to start happening around 65 degrees.
• Do use an SSD for initial download; lots of temp files etc
• Don't use some nonsense filesystem like NTFS; prefer native Linux.
• Do move swap to ssd instead of SD card - see /etc/dphys-swapfile; CONF_SWAPFILE and also set CONF_SWAPSIZE to 2048 (default is 100)
• Try not to kill multiple ffmpeg's at same time; cleanup is lots of CPU
• Try cutting dirty pages ratio in half - default is vm.dirty_background_ratio = 10 and vm.dirty_ratio = 20 - we set both to half by /etc/sysctl.d/local.conf
• see https://github.com/ctengel/objectindex README

Uninstallation

Overwrite hard drive

sudo dd if=/dev/zero of=/mnt/abc/abc.dd bs=1048576 count=524288
sudo dd if=/dev/zero of=/dev/sda bs=1048576 count=524288 status=progress
sudo parted /dev/sda
sudo mkfs.ext4 /dev/sda1

Also hdparm can be investigated.