Time Machine stuck at Stopping
Recently upgraded my DS1812+ memory, the backup job was stuck, but I don't know whether they are related. Because I was rebooting in the morning, but the backup was stuck at 4pm.
To fix the issue, run following command
sudo killall backupd
Some people mentioned commands
sudo service com.apple.metadata.mds stop sudo service com.apple.metadata.mds start
But there is no
service command in my MacOS.