Hi,

I am a newly converted to ktorrent. I just started with version 2.2.1 and I noticed a strange behaviour that I cannot explain.
When ktorrent is idling (that is it's loaded but it has no torrent to download) for some time, suddenly it starts a seemingly unjustified network activity. This strange activity is continuous in time and amounts to 1 or 2 KBytes/sec. I am completely sure this is caused by ktorrent because I tried several times and every time the activity ends immediately after ktorrent is killed.

Does this happen to anyone else?
Does anyone have an explanation for a behaviour like that?

Cheers

ashton

I'm guessing it's DHT activity?

jdong wrote:I'm guessing it's DHT activity?

Probably it's my ignorance on how DHTs are used in a bittorrent network but I thought that once my client is out of all the swarms it was into then it's just out and it does not engage in any kind of communication anymore.

I'm pretty ignorant on DHT's inner workings too, but I have definitely observed DHT traffic even when starting a fresh KTorrent or stopping all torrents. I think it's either that you are expected to participate on DHT if your client is DHT enabled regardless of active torrents, or that some clients have remembered you in their DHT nodes table and now are talking to you.

Probably the DHT code refreshing it's buckets (this happens every 15 minutes). Obviously there is a possibility of clients contacting you via DHT, but if there is a surge in activity, it's probably the bucket refresh.