Tracker: Not contacted yet

[SethNW]

Hi

I have problem with qBittorrent on my PC. Whenever I download torrents, it will just contact one tracker. It will not try to contact other trackers, it will just say "Not contacted yet". And there is no option to force it to update specific tracker, like on other torrent clients. Here is screenshot of my issue:

It was like that for past 6 hours.

So my question is, is there any way to fix it? I waited for updates and I run latest version, but this bug just sticks around.

[tekko]

options > advanced > always announce to all trackers

[SethNW]

Thanks, that solved my issue. Though one would expect this to be on by default...

[loki]

That's the opposite of "official" bittorrent protocol, it makes a lot harder on the trackers if it has to contact them all versus just contacting one working tracker that's likely to have all same peers anyway.

[Switeck]

Other BitTorrent clients have a concept of tracker "tiers" -- groups of trackers bundled together where only 1 tracker of that tier is attempted per update.
If a tracker fails to update, another tracker in the same tier is attempted. That working tracker in a tier should be used at least till the BT client is restarted.
Some .torrent files have tracker tiers built into them.

An example is if there's both a udp and http tracker running with the same web address -- only 1 is needed, probably the udp tracker if allowed.
There may even be a https tracker, which maybe should be a last resort since it tends to be very hard on a tracker to run many https connections at once.
Duplicate trackers should be removed from the tracker list automatically, otherwise the same tracker may be pointlessly contacted multiple times per update.

[Hikari]

Hello guys. I know this is old thread, but my post doesn't require a new thread although being relevant.

The same issue was talked far back in http://qbforums.shiki.hu/index.php?topic=71.0

My concern about qBittorrent announcing only to the first tracker of the list, is that tracker will be bloated of work while others will be idle. Idleness may result even in the torrent being removed from them, resulting in centralization.

Of course that'd only happen if qBittorrent was by far the most used torrent client. It not being that, in reality it will end with all qBittorrent users using always the same tracker in a torrent, and users of other clients may end unaccessible for us. Very bad.

A better solution, if qBittorrent's core devs wanted to reduce load and traffic, would be, for each reannounce, do it on random trackers, like 20% of available ones. This way we'd end up announcing on all of them, keep the global announce frequency, and still not announce on all of them all the times.