unexplained network traffic

Lucas's Avatar

Lucas

07 Apr, 2021 02:07 PM

Hi, I'm a very longtime Moneydance user and my main file goes back to 2006. I typically leave it running all the time because Java startup times are long.

I noticed that my computer had a constant trickle of network traffic even when it wasn't being used (see attached graph) of about 20-25 kB/s downstream and about 10% of that upstream. I tried shutting down Moneydance for 30 minutes, and the traffic stopped (you can see it in the attached graph), so I believe that's the source. Any idea what that traffic could be? Dropbox syncing? It seems odd that that much traffic would be generated for a Moneydance file that isn't being edited at all.

Until a few days ago I was using Moneydance 2019, and the traffic was over 100 kB/s. Upgrading to the stable 2021 build got that down to much less, so that's nice. Still, 20 kB/s is over 50 GB per month, so it seemed worth investigating.

  1. 1 Posted by Stuart Beesley ... on 07 Apr, 2021 03:03 PM

    Stuart Beesley - JUST A FELLOW USER's Avatar

    Try this... Help>open console... clear the console.... keep it open....
    now rerun your test(s)... correlate console entries with the traffic..
    what do you see?

    (not support, just a fellow user)

  2. 2 Posted by Lucas on 07 Apr, 2021 03:52 PM

    Lucas's Avatar

    Thanks, that's a great idea. It looks like there are Dropbox API calls every two seconds continuously? That seems like a lot. Is that expected? Should I regenerate my Dropbox backup somehow to make that better?

    $ grep '<<date' errlog.txt | cut -d: -f2-3 | uniq -c
         32  Wed, 07 Apr 2021 15:14
         32  Wed, 07 Apr 2021 15:15
         32  Wed, 07 Apr 2021 15:16
         32  Wed, 07 Apr 2021 15:17
         32  Wed, 07 Apr 2021 15:18
         32  Wed, 07 Apr 2021 15:19
         36  Wed, 07 Apr 2021 15:20
         34  Wed, 07 Apr 2021 15:21
         34  Wed, 07 Apr 2021 15:22
         33  Wed, 07 Apr 2021 15:23
         35  Wed, 07 Apr 2021 15:24
         36  Wed, 07 Apr 2021 15:25
         33  Wed, 07 Apr 2021 15:26
         34  Wed, 07 Apr 2021 15:27
         33  Wed, 07 Apr 2021 15:28
         35  Wed, 07 Apr 2021 15:29
         37  Wed, 07 Apr 2021 15:30
         36  Wed, 07 Apr 2021 15:31
         32  Wed, 07 Apr 2021 15:32
         31  Wed, 07 Apr 2021 15:33
         33  Wed, 07 Apr 2021 15:34
         32  Wed, 07 Apr 2021 15:35
         32  Wed, 07 Apr 2021 15:36
         32  Wed, 07 Apr 2021 15:37
         32  Wed, 07 Apr 2021 15:38
         32  Wed, 07 Apr 2021 15:39
         32  Wed, 07 Apr 2021 15:40
         32  Wed, 07 Apr 2021 15:41
    
  3. 3 Posted by Stuart Beesley ... on 07 Apr, 2021 03:58 PM

    Stuart Beesley - JUST A FELLOW USER's Avatar

    That would be dropbox Sync.... Do you have this on?
    I prefer dropbox folders rather than dropbox connection. Which do you have?

    (not support, just a fellow user)

  4. 4 Posted by Lucas on 07 Apr, 2021 10:11 PM

    Lucas's Avatar

    Thanks, yes, turning off Dropbox sync certainly cuts off the traffic. I've done that for now and am just using rclone nightly to back up the Moneydance file and saving all the bandwidth. I guess I'm still curious if all this network activity is really necessary with the Dropbox connection turned on, but this is okay for my use case.

  5. 5 Posted by dwg on 07 Apr, 2021 10:28 PM

    dwg's Avatar

    I'm a fellow user.

    Dropbox syncing is not intended as a backup mechanism. It is a syncing mechanism for keeping multiple computer systems up to data as far as Moneydance data is concerned.

    As such even if you have not made any updates the software must routinely poll the shared location in order to see if another user on another machine has made data updates that the local Moneydance instance needs to download and apply.

  6. 6 Posted by Lucas on 08 Apr, 2021 03:05 PM

    Lucas's Avatar

    Dropbox syncing is not intended as a backup mechanism. It is a syncing mechanism...

    Indeed, I'm just now figuring that out. It seems I turned this on (in 2017 or so?) without understanding that fully. Better late than never, I suppose.

    As such even if you have not made any updates the software must routinely poll the shared location...

    There are ways to write APIs that can notify about changes much more efficiently, but it appears Dropbox doesn't have one of those APIs. Pity. Thanks for your help.

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