Just to add a facts-based confirmation: my i2pd router[*] is running with openfiles-cur=4096, openfiles-max=4096 and kern.maxfiles=8192 (as proposed by Klemens) without any problem since more than 3 days.
This is by no means an extensive survey, but these values seem definitely sufficient to me for a regular router. I didn't try to run a floodfill due to my server's constraints. Cheers. [*] There's indeed a potential for confusion in the fact that each node of the I2P network is called a router... On Monday, January 29th, 2024 at 10:12 PM, open...@systemfailure.net wrote: > As far as I understand, a maximum limit of 4096 open file descriptors is > sufficient for most users. > > This limit should be raised to 8192 for floodfills, but a router becomes a > floodfill only if 2 conditions are met: > - it has a sufficiently high bandwidth > - the user has set "floodfill = true" in i2pd.conf (by default it is false) > > So this feature must be enabled explicitly, and AFAIK most routers are not > floodfills. > > In your case, even 8192 doesn't seem enough, because you're torrenting. > You're certainly not the only one to use the I2P network for anonymous file > sharing, but IMHO this is not the most generic use case. > > > why are yo uignoring my reply? 4096 doesn't cover everyone like I said > > people > > can become floodfills automatically and floodfills means 8192 > > > > On Sun, January 28, 2024 7:52 pm, Klemens Nanni wrote: > > > > > On Sun, Jan 28, 2024 at 06:15:52PM +0000, Stuart Henderson wrote: > > > > > > > On 2024/01/27 21:54, open...@systemfailure.net wrote: > > > > > > > > > According to i2pd's online documentation [1], the maximum number of > > > > > open > > > > > file descriptors is 4096 for a regular node, and 8192 for a floodfill > > > > > [2]. > > > > > > > > > > I have never measured how many FDs i2pd is really using, but this > > > > > software for sure needs a lot of them. > > > > > > > > > > So I guess we can set 4096 as default value, and inform users in the > > > > > README file that this value should be raised to 8192 for floodfills. > > > > > > > > 4096 doesn't seem too unreasonable, it's below default levels of > > > > kern.maxfiles, so if that's enough for the software I'd be happy with > > > > setting > > > > that in a login.conf.d file. > > > > > > Thanks for all you feedback. > > > OK? > > > > > > Index: Makefile > > > =================================================================== > > > RCS file: /cvs/ports/net/i2pd/Makefile,v > > > diff -u -p -r1.22 Makefile --- Makefile 13 Jan 2024 16:21:39 -0000 1.22 > > > +++ Makefile 24 Jan 2024 22:21:26 -0000 > > > @@ -3,6 +3,7 @@ COMMENT = client for the I2P anonymous n > > > GH_ACCOUNT = PurpleI2P > > > GH_PROJECT = i2pd > > > GH_TAGNAME = 2.50.2 > > > +REVISION = 0 > > > > > > CATEGORIES = net > > > HOMEPAGE = https://i2pd.website > > > Index: pkg/PLIST > > > =================================================================== > > > RCS file: /cvs/ports/net/i2pd/pkg/PLIST,v > > > diff -u -p -r1.12 PLIST --- pkg/PLIST 20 Dec 2023 22:19:44 -0000 1.12 > > > +++ pkg/PLIST 24 Jan 2024 22:30:37 -0000 > > > @@ -237,3 +237,7 @@ share/examples/i2pd/tunnels.conf > > > @owner _i2pd > > > @group _i2pd > > > @sample ${SYSCONFDIR}/i2pd/tunnels.conf > > > +@owner > > > +@group > > > +share/examples/login.conf.d/i2pd > > > +@sample ${SYSCONFDIR}/login.conf.d/i2pd > > > Index: pkg/README > > > =================================================================== > > > RCS file: /cvs/ports/net/i2pd/pkg/README,v > > > diff -u -p -r1.3 README --- pkg/README 8 Nov 2022 12:41:42 -0000 1.3 > > > +++ pkg/README 28 Jan 2024 19:51:52 -0000 > > > @@ -5,20 +5,7 @@ > > > Resource Limits: File Descriptors > > > ================================= > > > > > > -By default, the i2pd process runs in the login(1) class of "daemon". > > > -The default limits on file descriptors are insufficient to run i2pd; > > > instead > > > you -should put the _i2pd user and process in their own login(1) class > > > with > > > tuned -resources. > > > -You should also raise the system-wide maxfiles limit. > > > +You should raise the system-wide maxfiles limit: > > > > > > -1. Configure i2pd login class in the login.conf(5) file: > > > - > > > - i2pd:\ > > > - :openfiles-cur=8192:\ > > > - :openfiles-max=8192:\ > > > - :tc=daemon: > > > - > > > -2. Adjust kern.maxfiles, if needed: > > > - > > > - # sysctl kern.maxfiles=16000 > > > - # echo "kern.maxfiles=16000" >> /etc/sysctl.conf > > > + # sysctl kern.maxfiles=8192 > > > + # echo "kern.maxfiles=8192" >> /etc/sysctl.conf > > > Index: pkg/i2pd.login > > > =================================================================== > > > RCS file: pkg/i2pd.login > > > diff -N pkg/i2pd.login --- /dev/null 1 Jan 1970 00:00:00 -0000 > > > +++ pkg/i2pd.login 28 Jan 2024 19:51:32 -0000 > > > @@ -0,0 +1,4 @@ > > > +i2pd:\ > > > + :openfiles-cur=4096:\ > > > + :openfiles-max=4096:\ > > > + :tc=daemon:
