[Solved] Rtorrent not starting around february 2023

[slch]

Sorry to necro bump this deprecated repo.
Would like to share my problem and found solution.

So around the time it got deprecated, i encountered an issue that rtorrent won't start - i'd get infinite timeout on watcher for rtorrent process start.
It was somewhere in February - i did update my host arch & restarted the server after couple months of uptime. Was not sure what exactly caused the rtorrent issue. Tried couple things with config and left it be. Now finally got time and remembered to get at it.

Today attached to container, tried starting it manually. Got error std::bad_alloc.
After some googling found a thread from around the same time frame as error which did help - link
You guys can read about _SC_OPEN_MAX or ulimit -n in the thread or somewhere else.
My outputs were in same range with people in linked thread.

TLDR I put the following content in host's /etc/docker/daemon.json.

{
  "default-ulimits": {
    "nofile": {
      "Hard": 64000,
      "Name": "nofile",
      "Soft": 64000
    }
  }
}

Then following a reboot all was good again.
Hope this helps if anyone got the same issue.

Update: Rtorrent kept stopping from time to time. Upped the limit from 64000 to 256000. Seems alright now.