From: Tobias Oberstein <tobias.oberstein@gmail.com>
To: Eduardo Silva <edsiper@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>
Subject: Re: SO_REUSEPORT and Unix domain sockets
Date: Sun, 21 Sep 2014 15:50:43 +0200 [thread overview]
Message-ID: <541ED7B3.6050306@gmail.com> (raw)
In-Reply-To: <CAMAQheOpXxa-ndT1EuOqJgae3yzEWbRTLMs+y800S930w-xKsw@mail.gmail.com>
Am 20.09.2014 03:44, schrieb Eduardo Silva:
>>
>> How can this be used for sockets of type AF_UNIX?
>>
>> I can only get it working with TCP sockets, not Unix domain sockets.
>>
>> When using TCP, the incoming clients will get nicely balanced to all
>> processes listening. With Unix domain sockets, the incoming clients all get
>> connected only to the last started process.
>>
>> The test code (Python) I was trying is here:
>>
>> http://stackoverflow.com/questions/23742368/can-so-reuseport-be-used-on-unix-domain-sockets
>>
>> Any hints appreciated,
>> /Tobias
>
>
> Looking at the original patch looks like the implementation is only
> done for TCP and UDP:
>
> http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=c617f398edd4db2b8567a28e899a88f8f574798d
>
Ok, I see. Unfortunate.
> UNIX domain sockets use the file system as the address name space, so
> SO_REUSEPORT would not be applicable.
>
Yes, in case of Unix domain sockets, it's about "reusing paths", not ports.
Such an option for in-kernel load-balancing of Unix domain sockets would
be useful ..
/Tobias
prev parent reply other threads:[~2014-09-21 13:50 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-27 9:55 SO_REUSEPORT and Unix domain sockets Tobias Oberstein
2014-09-20 1:44 ` Eduardo Silva
2014-09-21 13:50 ` Tobias Oberstein [this message]
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