Bug 2246077 - Need to add the cmount_path in ganesha export block to fix the NFS memory consumption issue
Summary: Need to add the cmount_path in ganesha export block to fix the NFS memory con...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Ceph Storage
Classification: Red Hat Storage
Component: Cephadm
Version: 7.0
Hardware: Unspecified
OS: Unspecified
unspecified
urgent
Target Milestone: ---
: 7.0
Assignee: avan
QA Contact: Manisha Saini
Rivka Pollack
URL:
Whiteboard:
Depends On:
Blocks: 2236325 2239769 2247214
TreeView+ depends on / blocked
 
Reported: 2023-10-25 09:45 UTC by Manisha Saini
Modified: 2023-12-13 15:24 UTC (History)
7 users (show)

Fixed In Version: ceph-18.2.0-108.el9cp
Doc Type: Enhancement
Doc Text:
.Add `cmount_path` option and generate unique user ID With this enhancement, you can add the optional `cmount_path` option and generate a unique user ID for each Ceph File System to allow sharing CephFS clients across multiple Ganesha exports thereby reducing the memory usage for a single CephFS client.
Clone Of:
Environment:
Last Closed: 2023-12-13 15:24:34 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker RHCEPH-7773 0 None None None 2023-10-25 09:46:19 UTC
Red Hat Product Errata RHBA-2023:7780 0 None None None 2023-12-13 15:24:48 UTC

Description Manisha Saini 2023-10-25 09:45:48 UTC 
Description of problem:
===========

This is the tracker BZ to track the cephadm side changes needed for NFS

   # Exporting FSAL
    FSAL {
         Name = CEPH;
         cmount_path = "/";
    }

cmount_path param is required to be added in ganesha export file created by cephadm to fix the below 2 memory consumption issues in NFS 



[1] https://bugzilla.redhat.com/show_bug.cgi?id=2236325
[2] https://bugzilla.redhat.com/show_bug.cgi?id=2239769



Version-Release number of selected component (if applicable):


How reproducible:


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Expected results:


Additional info:
Comment 7 Manisha Saini 2023-11-07 03:17:39 UTC 
Verified this BZ with

]# rpm -qa | grep nfs
libnfsidmap-2.5.4-18.el9.x86_64
nfs-utils-2.5.4-18.el9.x86_64
nfs-ganesha-selinux-5.6-3.el9cp.noarch
nfs-ganesha-5.6-3.el9cp.x86_64
nfs-ganesha-rgw-5.6-3.el9cp.x86_64
nfs-ganesha-ceph-5.6-3.el9cp.x86_64
nfs-ganesha-rados-grace-5.6-3.el9cp.x86_64
nfs-ganesha-rados-urls-5.6-3.el9cp.x86_64

# ceph --version
ceph version 18.2.0-113.el9cp (32cbda69435c7145d09eeaf5b5016e5d46370a5d) reef (stable)

# ceph nfs export get cephfs-nfs /export_0 
{
  "access_type": "RW",
  "clients": [],
  "cluster_id": "cephfs-nfs",
  "export_id": 1,
  "fsal": {
    "cmount_path": "/",
    "fs_name": "cephfs",
    "name": "CEPH",
    "user_id": "nfs.cephfs-nfs.cephfs"
  },
  "path": "/",
  "protocols": [
    4
  ],
  "pseudo": "/export_0",
  "sectype": [
    "krb5"
  ],
  "security_label": true,
  "squash": "none",
  "transports": [
    "TCP"
  ]
}


Param "cmount_path" is now added in the nfs export file.Moving this BZ to verified state,
Comment 10 errata-xmlrpc 2023-12-13 15:24:34 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 (Red Hat Ceph Storage 7.0 Bug Fix update), 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-2023:7780
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