Limit download to one at a time

Get help with all aspects of SABnzbd
Forum rules
Help us help you:
  • Are you using the latest stable version of SABnzbd? Downloads page.
  • Tell us what system you run SABnzbd on.
  • Adhere to the forum rules.
  • Do you experience problems during downloading?
    Check your connection in Status and Interface settings window.
    Use Test Server in Config > Servers.
    We will probably ask you to do a test using only basic settings.
  • Do you experience problems during repair or unpacking?
    Enable +Debug logging in the Status and Interface settings window and share the relevant parts of the log here using [ code ] sections.
Post Reply
tucan_sam
Newbie
Newbie
Posts: 4
Joined: August 19th, 2011, 8:44 pm

Limit download to one at a time

Post by tucan_sam »

Hi,

I've read all the documentation online. I've looked through all of the sabnzbd+ menu options. I've been using sabnzbd+ for years. I've never been able to figure out how to restrict downloads to "one at a time" -- serially.... no simultaneous downloads.

Is this possible?

thanks,
sam
User avatar
sander
Release Testers
Release Testers
Posts: 9429
Joined: January 22nd, 2008, 2:22 pm

Re: Limit download to one at a time

Post by sander »

I don't understand your question; I would say SABnzbd does only one download at a time?

If you mean no downloading during post-processing, check the option "Pause Downloading During Post-Processing"
If you want only one download thread, set the connection number of your download server to 1

HTH
User avatar
shypike
Administrator
Administrator
Posts: 19773
Joined: January 18th, 2008, 12:49 pm

Re: Limit download to one at a time

Post by shypike »

There can be some overlap between jobs.
There's an option in Config->Switches that minimizes most of the overlap (Only fetch from top of queue).
And of course what Sander said.
tucan_sam
Newbie
Newbie
Posts: 4
Joined: August 19th, 2011, 8:44 pm

Re: Limit download to one at a time

Post by tucan_sam »

sander wrote:I don't understand your question; I would say SABnzbd does only one download at a time?
Well, not in my experience.
sander wrote:If you mean no downloading during post-processing, check the option "Pause Downloading During Post-Processing"
No, that's not what I mean.
sander wrote:If you want only one download thread, set the connection number of your download server to 1
Thanks, I'll try that. I have it set to 8 now in order to maximize throughput. I thought even if I changed it to 1, then sabnzbd would multiplex all the nzb download tasks over a single connection. That's how a lot of other software works. Maybe not sabnzbd+. I'll try it.

Thanks!!
tucan_sam
Newbie
Newbie
Posts: 4
Joined: August 19th, 2011, 8:44 pm

Re: Limit download to one at a time

Post by tucan_sam »

Results:

When I change the number of connections from 8 to 1, my throughput is reduced from 1.5 MB/sec to about 950 KB/sec.

In regards to number of simultaneous downloads:

1. Add nzb to queue. It starts downloading.
2. Add another nzb to the queue. It's not downloading (I'm checking this by looking in my "incomplete" folder--i.e., downloads which haven't completed). There is no entry for it in the "incomplete" folder. However, the GUI show a "pause" button. Why? That is very confusing. See screenshot.

Image

Uploaded with ImageShack.us
User avatar
inpheaux
Administrator
Administrator
Posts: 562
Joined: January 16th, 2008, 9:14 pm

Re: Limit download to one at a time

Post by inpheaux »

tucan_sam wrote:1. Add nzb to queue. It starts downloading.
2. Add another nzb to the queue. It's not downloading (I'm checking this by looking in my "incomplete" folder--i.e., downloads which haven't completed). There is no entry for it in the "incomplete" folder. However, the GUI show a "pause" button. Why? That is very confusing. See screenshot.
Don't drop down to 1 thread. Thread count has nothing to do with what you're seeing.

SABnzbd downloads via a Queue, and downloads only one thing at a time. Per-item pausing in SABnzbd lets you maintain your queue order but pause individual items. For users with very large queues this can be more useful than changing something's priority or manually re-ordering the list. We have to show a pause button per-job because SABnzbd has the ability to send jobs to the queue that start off paused (useful for RSS feeds that might not always have things you want).

SABnzbd already does exactly what you want, stop worrying about it.
tucan_sam
Newbie
Newbie
Posts: 4
Joined: August 19th, 2011, 8:44 pm

Re: Limit download to one at a time

Post by tucan_sam »

I understand.

My point is that the per-item pause button should initially display the "play" icon, not the pause icon.
User avatar
inpheaux
Administrator
Administrator
Posts: 562
Joined: January 16th, 2008, 9:14 pm

Re: Limit download to one at a time

Post by inpheaux »

tucan_sam wrote:My point is that the per-item pause button should initially display the "play" icon, not the pause icon.
This is a debate we've had several times in the past. Should a button show the function's status or the function's action? In this case we chose the action, not the status.
achong0
Newbie
Newbie
Posts: 1
Joined: May 10th, 2012, 10:18 pm

Re: Limit download to one at a time

Post by achong0 »

Is there a way I can actually get SABnzbd to download more than one NZB at a time? I can't seem to find the option in any of the menus that I have looked through.. I would like to have multiple threads going to maximise the download capability of my internet connection.

Thanks
User avatar
shypike
Administrator
Administrator
Posts: 19773
Joined: January 18th, 2008, 12:49 pm

Re: Limit download to one at a time

Post by shypike »

SABnzbd already utilizes all connections with one NZB at the time.
Post Reply