On Friday, November 6, 2015 1:01:41 PM, Prasanna Kumar Kalever Wrote: > Hi Prasanna, > > We are already working on a unix domain socket solution instead of TCP > loopback connection for communicating between gluster Client and Server. > At first the plan was to consider a rpc call ( > http://review.gluster.org/#/c/12489/ , http://review.gluster.org/#/c/12508/) > issued by client and get the bind address from glusterd. Because, in some > code paths, we use hardcoded 'localhost' to establish the connection which > cause issues when the gluster is bound to a different address via > 'transport.socket.bind-addres'. Humble, I am sure the patches above refer to using Unix Domain sockets for volfile transmission. My proposal is for I/O between processes on the same hypervisor, specially for hyper-convergence scenario :) - prasanna > > > > --Humble > > > On Fri, Nov 6, 2015 at 12:38 PM, Prasanna Kumar Kalever <pkalever@xxxxxxxxxx > > wrote: > > > Hi all, > > > > Currently we use TCP loopback connection for communicating between gluster > > Client and Server. > > Hyper-convergence may also require communication with a server running in > > the same hyper-visor. > > > > I was initially wondering if replacing IPC with Unix Domain sockets will > > improve the performance? > > Or > > Is there any theory that proves that Unix Domain socket would give better > > performance then TCP loopback connection? > > > > Finally I have to Say: > > > > Yes, local IPC by unix domain sockets will be faster than communication by > > loopback connections because you have less TCP overhead > > > > Postgres core developer Bruce Momjian has blogged @ > > http://momjian.us/main/blogs/pgblog/2012.html#June_6_2012 about this > > topic. Momjian states, "Unix-domain socket communication is measurably > > faster." He measured query network performance showing that the local > > domain socket was 33% faster than using the TCP/IP stack. > > > > Found a paper @ > > http://osnet.cs.binghamton.edu/publications/TR-20070820.pdf > > > > Also See, > > > > http://lists.freebsd.org/pipermail/freebsd-performance/2005-February/001143.html > > http://bhavin.directi.com/unix-domain-sockets-vs-tcp-sockets/ > > > > > > The whole Idea is to bring IPC through Unix Domain Sockets in gluster > > instead of localhost loopback! > > > > Any suggestions will be appreciated! > > > > - Prasanna > > > > > > _______________________________________________ > > Gluster-devel mailing list > > Gluster-devel@xxxxxxxxxxx > > http://www.gluster.org/mailman/listinfo/gluster-devel > > _______________________________________________ > Gluster-devel mailing list > Gluster-devel@xxxxxxxxxxx > http://www.gluster.org/mailman/listinfo/gluster-devel _______________________________________________ Gluster-devel mailing list Gluster-devel@xxxxxxxxxxx http://www.gluster.org/mailman/listinfo/gluster-devel
