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Bug 1710532 - [bat] nfs.conf rdma setting not implemented
Summary: [bat] nfs.conf rdma setting not implemented
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: nfs-utils
Version: 8.1
Hardware: Unspecified
OS: Unspecified
medium
unspecified
Target Milestone: rc
: 8.0
Assignee: Steve Dickson
QA Contact: Yongcheng Yang
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2019-05-15 17:21 UTC by Benjamin Coddington
Modified: 2020-04-28 16:51 UTC (History)
6 users (show)

Fixed In Version: nfs-utils-2.3.3-27.el8
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2020-04-28 16:51:05 UTC
Type: Bug
Target Upstream Version:
Embargoed:

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System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2020:1832 0 None None None 2020-04-28 16:51:25 UTC

Description Benjamin Coddington 2019-05-15 17:21:47 UTC 
/etc/nfs.conf:

[nfsd]
 rdma=y

Has no effect, the result is that there's no persistent way to enable RDMA service for NFS.  It looks like /etc/nfs.conf is a template, and we've removed /etc/sysconfig/nfs functionality.  All the commented out settings need to be tested.  This one, at least was never implemented.

It would make sense to not add commented-out defaults that don't have an un-commented implementation.
Comment 1 Yongcheng Yang 2019-05-16 01:56:22 UTC 
Reading from the "nfsd" man page, we are using "rdma=nfsrdma" to config rdma.
------------------------------------------------------------------
# rpm -q nfs-utils
nfs-utils-2.3.3-14.el8_0.x86_64
# man nfsd | grep "Set RDMA port"
       rdma   Set RDMA port.  Use "rdma=nfsrdma" to enable standard port.
------------------------------------------------------------------

We already have testcase to cover this config, maybe need to improve checking more values.

https://beaker.engineering.redhat.com/recipes/6860717#task92692165
------------------------------------------------------------------
# {Info} Apply configuration settings to /etc/nfs.conf
[06:57:06 root@ ~~]# cat /etc/nfs.conf
[nfsd]
rdma=nfsrdma
[06:57:06 root@ ~~]# rpc.nfsd
[06:57:06 root@ ~~]# cat /proc/fs/nfsd/portlist | grep -w rdma
rdma 20049
rdma 20049
[06:57:06 root@ ~~]# rpc.nfsd 0
[06:57:06 root@ ~~]# >/etc/nfs.conf
------------------------------------------------------------------

In nfs.conf, the "rdma=n" does make users confusing.
Comment 4 Steve Dickson 2019-09-17 11:55:07 UTC 
Upstream commit...

commit 0240df0e8ccf7be2706a6a10a2a620f8eda55275
Author: Yongcheng Yang <yongcheng.yang>
Date:   Thu Sep 5 07:36:26 2019 -0400

    nfsd: Adjust nfs.conf setting/parsing of rdma port
Comment 6 Yongcheng Yang 2019-12-02 08:09:25 UTC 
Verified in nfs-utils-2.3.3-27.el8
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
https://beaker.engineering.redhat.com/recipes/7637495#task103017310
--------------------------------------------------------------------
# check "rdma=BOOLEAN"
[06:40:31 root@ ~~]# cat /etc/nfs.conf
[nfsd]
rdma=yes
[06:40:31 root@ ~~]# rpc.nfsd
[06:40:31 root@ ~~]# cat /proc/fs/nfsd/portlist | grep -w rdma
rdma 20049
rdma 20049
[06:40:31 root@ ~~]# rpc.nfsd 0
[06:40:31 root@ ~~]# systemctl reset-failed
[06:40:31 root@ ~~]# service_nfs restart
Redirecting to /bin/systemctl restart nfs-server.service
[06:40:31 root@ ~~]# cat /proc/fs/nfsd/portlist | grep -w rdma
rdma 20049
rdma 20049

# check "rdma-port="
[06:40:56 root@ ~~]# cat /etc/nfs.conf
[nfsd]
rdma=1   <<< Any of true, t, yes, y, on, or 1 can be used for "true"
rdma-port=45678
[06:40:56 root@ ~~]# rpc.nfsd
[06:40:56 root@ ~~]# cat /proc/fs/nfsd/portlist | grep -w rdma
rdma 45678
rdma 45678
[06:40:56 root@ ~~]# rpc.nfsd 0
[06:40:56 root@ ~~]# systemctl reset-failed
[06:40:56 root@ ~~]# service_nfs restart
Redirecting to /bin/systemctl restart nfs-server.service
[06:40:56 root@ ~~]# cat /proc/fs/nfsd/portlist | grep -w rdma
rdma 45678
rdma 45678
Comment 8 errata-xmlrpc 2020-04-28 16:51:05 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHBA-2020:1832
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