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From: bfields@fieldses.org (J. Bruce Fields)
To: NeilBrown <neilb@suse.com>
Cc: Olga Kornievskaia <aglo@umich.edu>,
	Chuck Lever <chuck.lever@oracle.com>,
	Schumaker Anna <Anna.Schumaker@netapp.com>,
	Trond Myklebust <trondmy@hammerspace.com>,
	linux-nfs@vger.kernel.org
Subject: Re: [PATCH 0/9] Multiple network connections for a single NFS mount.
Date: Thu, 30 May 2019 20:24:30 -0400	[thread overview]
Message-ID: <20190531002430.GC24802@fieldses.org> (raw)
In-Reply-To: <155917564898.3988.6096672032831115016.stgit@noble.brown>

On Thu, May 30, 2019 at 10:41:28AM +1000, NeilBrown wrote:
> This patch set is based on the patches in the multipath_tcp branch of
>  git://git.linux-nfs.org/projects/trondmy/nfs-2.6.git
> 
> I'd like to add my voice to those supporting this work and wanting to
> see it land.
> We have had customers/partners wanting this sort of functionality for
> years.  In SLES releases prior to SLE15, we've provide a
> "nosharetransport" mount option, so that several filesystem could be
> mounted from the same server and each would get its own TCP
> connection.
> In SLE15 we are using this 'nconnect' feature, which is much nicer.

For what it's worth, we've also gotten at least one complaint of a
performance regression on 4.0->4.1 upgrade because a user was depending
on the fact that a 4.0 client would use multiple TCP connections to a
server with multiple IP addresses.  (Whereas in the 4.1 case the client
will recognize that the addresses point to the same server and share any
preexisting session.)

--b.

      parent reply	other threads:[~2019-05-31  0:24 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-30  0:41 [PATCH 0/9] Multiple network connections for a single NFS mount NeilBrown
2019-05-30  0:41 ` [PATCH 2/9] SUNRPC: Allow creation of RPC clients with multiple connections NeilBrown
2019-05-30  0:41 ` [PATCH 9/9] NFS: Allow multiple connections to a NFSv2 or NFSv3 server NeilBrown
2019-05-30  0:41 ` [PATCH 4/9] SUNRPC: enhance rpc_clnt_show_stats() to report on all xprts NeilBrown
2019-05-30  0:41 ` [PATCH 5/9] SUNRPC: add links for all client xprts to debugfs NeilBrown
2019-05-30  0:41 ` [PATCH 3/9] NFS: send state management on a single connection NeilBrown
2019-07-23 18:11   ` Schumaker, Anna
2019-07-23 22:54     ` NeilBrown
2019-07-31  2:05     ` [PATCH] NFS: add flags arg to nfs4_call_sync_sequence() NeilBrown
2019-05-30  0:41 ` [PATCH 8/9] pNFS: Allow multiple connections to the DS NeilBrown
2019-05-30  0:41 ` [PATCH 1/9] SUNRPC: Add basic load balancing to the transport switch NeilBrown
2019-05-30  0:41 ` [PATCH 7/9] NFSv4: Allow multiple connections to NFSv4.x servers NeilBrown
2019-05-30  0:41 ` [PATCH 6/9] NFS: Add a mount option to specify number of TCP connections to use NeilBrown
2019-05-30 17:05 ` [PATCH 0/9] Multiple network connections for a single NFS mount Tom Talpey
2019-05-30 17:20   ` Olga Kornievskaia
2019-05-30 17:41     ` Tom Talpey
2019-05-30 18:41       ` Olga Kornievskaia
2019-05-31  1:45         ` Tom Talpey
2019-05-30 22:38       ` NeilBrown
2019-05-31  1:48         ` Tom Talpey
2019-05-31  2:31           ` NeilBrown
2019-05-31 12:39             ` Tom Talpey
2019-05-30 23:53     ` Rick Macklem
2019-05-31  0:15       ` J. Bruce Fields
2019-05-31  1:01       ` NeilBrown
2019-05-31  2:20         ` Rick Macklem
2019-05-31 12:36           ` Tom Talpey
2019-05-31 13:33             ` Trond Myklebust
2019-05-30 17:56 ` Chuck Lever
2019-05-30 18:59   ` Olga Kornievskaia
2019-05-30 22:56   ` NeilBrown
2019-05-31 13:46     ` Chuck Lever
2019-05-31 15:38       ` J. Bruce Fields
2019-06-11  1:09       ` NeilBrown
2019-06-11 14:51         ` Chuck Lever
2019-06-11 15:05           ` Tom Talpey
2019-06-11 15:20           ` Trond Myklebust
2019-06-11 15:35             ` Chuck Lever
2019-06-11 16:41               ` Trond Myklebust
2019-06-11 17:32                 ` Chuck Lever
2019-06-11 17:44                   ` Trond Myklebust
2019-06-12 12:34                     ` Steve Dickson
2019-06-12 12:47                       ` Trond Myklebust
2019-06-12 13:10                         ` Trond Myklebust
2019-06-11 15:34           ` Olga Kornievskaia
2019-06-11 17:46             ` Chuck Lever
2019-06-11 19:13               ` Olga Kornievskaia
2019-06-11 20:02                 ` Tom Talpey
2019-06-11 20:09                   ` Chuck Lever
2019-06-11 21:10                     ` Olga Kornievskaia
2019-06-11 21:35                       ` Tom Talpey
2019-06-11 22:55                         ` NeilBrown
2019-06-12 12:55                           ` Tom Talpey
2019-06-11 23:02                       ` NeilBrown
2019-06-11 23:21                   ` NeilBrown
2019-06-12 12:52                     ` Tom Talpey
2019-06-11 23:42               ` NeilBrown
2019-06-12 12:39                 ` Steve Dickson
2019-06-12 17:36                 ` Chuck Lever
2019-06-12 23:03                   ` NeilBrown
2019-06-13 16:13                     ` Chuck Lever
2019-06-12  1:49           ` NeilBrown
2019-06-12 18:32             ` Chuck Lever
2019-06-12 23:37               ` NeilBrown
2019-06-13 16:27                 ` Chuck Lever
2019-05-31  0:24 ` J. Bruce Fields [this message]

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