Re: Peak load handling by Debian repository servers ????
One could run 'tcpdump' or a while loop logging the output of 'netstat -an' to a file for the duration of the interaction with the Debian servers, then, examine the file afterward.
Documentation reference: [WAS Re: Peak load handling by Debian repository servers ????]
On Sun, Dec 26, 2021 at 08:28:17AM -0600, Richard Owlett wrote: > On 12/26/2021 08:22 AM, Andrew M.A. Cater wrote: > > On Sun, Dec 26, 2021 at 08:15:54AM -0600, Richard Owlett wrote: > > > How does Debian repository distribute load during peaks? > > > Where/how is this documented? > > > > > > Consider the case when many users may specify the same URL in > > > sources.list . > > > If they all try to install packages at the same time there could be > > > problems. How does a particular user know which physical server provided a > > > particular package? > > > > > > I have a problem that could be explained by different users receiving > > > packages from different servers. My web searches and other posts have been > > > futile. I need background information to be able to ask an answerable > > > question. > > > > > > Appropriate documentation URL? > > > TIA > > > > > > > > > > deb.debian.org is a distributed network of mirrors based on geolocation > > > > It should be absolutely immaterial which server provided which package > > logs may tell you which mirror apt-get queried. > > > > All the very best, as ever > > > > Andy Cater > > *Appropriate documentation URL?* > > > Richard https://www.debian.org/mirror/list explains that you can use a mirror that's backed by a global CDN [content delivery network] http://deb.debian.org/ Suggests that these are backed by Fastly and Cloudflare: Fastly supports at least their instance https://www.fastly.com/ Search terms: deb.debian.org package mirror Hope this helps - all the very best, as ever, Andy Cater
Re: Peak load handling by Debian repository servers ????
On 2021-12-26 at 09:28, Richard Owlett wrote: > On 12/26/2021 08:22 AM, Andrew M.A. Cater wrote: > >> On Sun, Dec 26, 2021 at 08:15:54AM -0600, Richard Owlett wrote: >> >>> How does Debian repository distribute load during peaks? >>> Where/how is this documented? >>> >>> Consider the case when many users may specify the same URL in sources.list . >>> If they all try to install packages at the same time there could be >>> problems. How does a particular user know which physical server provided a >>> particular package? >>> >>> I have a problem that could be explained by different users receiving >>> packages from different servers. My web searches and other posts have been >>> futile. I need background information to be able to ask an answerable >>> question. >>> >>> Appropriate documentation URL? >>> TIA >> >> deb.debian.org is a distributed network of mirrors based on geolocation >> >> It should be absolutely immaterial which server provided which package >> logs may tell you which mirror apt-get queried. >> >> All the very best, as ever >> >> Andy Cater > > *Appropriate documentation URL?* Given the information which he provided for you, above, why would you think there is any appropriate documentation to which a URL could be provided? If (as he indicated) which server a package comes from should be immaterial, then there would be no reason to create documentation about how to determine that, much less about any other aspect. As such, there may not be any relevant document for a URL to point to. Is there a reason you don't provide the explanation/description of the actual problem you're encountering, so that people can try to identify possible explanations and solutions for it? You yourself wrote that the problem only "could be explained by" the model you've settled on; since there's a chance that that might not explain it, wouldn't it be better to let people try to look for alternative possible explanations? -- The Wanderer will, as usual, probably regret this The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man. -- George Bernard Shaw signature.asc Description: OpenPGP digital signature
Re: Peak load handling by Debian repository servers ????
On 12/26/2021 08:22 AM, Andrew M.A. Cater wrote: On Sun, Dec 26, 2021 at 08:15:54AM -0600, Richard Owlett wrote: How does Debian repository distribute load during peaks? Where/how is this documented? Consider the case when many users may specify the same URL in sources.list . If they all try to install packages at the same time there could be problems. How does a particular user know which physical server provided a particular package? I have a problem that could be explained by different users receiving packages from different servers. My web searches and other posts have been futile. I need background information to be able to ask an answerable question. Appropriate documentation URL? TIA deb.debian.org is a distributed network of mirrors based on geolocation It should be absolutely immaterial which server provided which package logs may tell you which mirror apt-get queried. All the very best, as ever Andy Cater *Appropriate documentation URL?*
Re: Peak load handling by Debian repository servers ????
On Sun, Dec 26, 2021 at 08:15:54AM -0600, Richard Owlett wrote: > How does Debian repository distribute load during peaks? > Where/how is this documented? > > Consider the case when many users may specify the same URL in sources.list . > If they all try to install packages at the same time there could be > problems. How does a particular user know which physical server provided a > particular package? > > I have a problem that could be explained by different users receiving > packages from different servers. My web searches and other posts have been > futile. I need background information to be able to ask an answerable > question. > > Appropriate documentation URL? > TIA > > deb.debian.org is a distributed network of mirrors based on geolocation It should be absolutely immaterial which server provided which package logs may tell you which mirror apt-get queried. All the very best, as ever Andy Cater >
Peak load handling by Debian repository servers ????
How does Debian repository distribute load during peaks? Where/how is this documented? Consider the case when many users may specify the same URL in sources.list . If they all try to install packages at the same time there could be problems. How does a particular user know which physical server provided a particular package? I have a problem that could be explained by different users receiving packages from different servers. My web searches and other posts have been futile. I need background information to be able to ask an answerable question. Appropriate documentation URL? TIA
