Blacklist _ I don't get it

[Greg_S]

I have been using Sonarr 2 for several years and Sonarr 3 from early days.
They have saved me countless hours of time and without sonarr and NZBget things would be a lot different.
During that 3-4(+) years I still have no idea what the blacklist does.
For me it is just an inconvenience. Occasionally I find a show I have not downloaded found it’s way to the “blacklist”.

My only interaction with the blacklist is opening it and clearing it.

Can someone please explain what it does and why do I need it?

[markus101]

If a download fails you don’t want Sonarr to try the exact same download because it’ll likely fail again, what’s the point of trying the same thing over and over again if it’s never going to work?

My only interaction with the blacklist is opening it and clearing it.

Sounds to me like your provider is slow to propagate new articles, which means Sonarr finds a release, grabs it, it fails, then you clear the blacklist and it succeeds, if that’s the case you should set a minimum age for releases, that way it’ll have time to propagate before Sonarr sends it to the download client, you’ll have to play with the exact age value, but typically 20-30 minutes works well.

[Greg_S]

Thanks Mark fro the reply.

I currently have several indexes both paid and free.

I did have minimum age set to 1 minutes and now changed to 20.
Retention 0
Maximum size 0
RSS Sync interval 15

So in theory now I should have very few going to the “blacklist”