Bug 2006399
| Summary: | limited reexport support kernel documentation | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 9 | Reporter: | J. Bruce Fields <bfields> |
| Component: | kernel | Assignee: | nfs-maint |
| kernel sub component: | NFS | QA Contact: | Yongcheng Yang <yoyang> |
| Status: | CLOSED ERRATA | Docs Contact: | Michal Stubna <mstubna> |
| Severity: | unspecified | ||
| Priority: | unspecified | CC: | dwysocha, jiyin, mstubna, msuchane, nfs-maint, plambri, smayhew, steved, xzhou, yieli |
| Version: | unspecified | Keywords: | Triaged |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | kernel-5.14.0-132.el9 | Doc Type: | No Doc Update |
| Doc Text: |
The NFS server can now reexport an NFS filesystem from another server. This may be useful, for example, for accelerating access to rarely changing data in some cases. However, it comes with some limitations; we will need to refer users to documentation for more details.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2022-11-15 10:50:59 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | |||
| Bug Blocks: | 2121576 | ||
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Description
J. Bruce Fields
2021-09-21 16:25:02 UTC
https://lore.kernel.org/linux-nfs/20210921143259.GB21704@fieldses.org/ may be a starting point for documentation. For upstream testing, I'm currently just reexporting and then running connectathon: proxy# mkdir -p /exports/nfs proxy# mount server:/exports/xfs /exports/nfs proxy# echo "/exports/nfs/ *(rw,fsid=1234)" >/etc/exports proxy# systemctl start nfs-server client# mount proxy:/exports/nfs /mnt/ client# cd cthon client# NFSTESTDIR=/mnt/TMP ./runtests -a -f It's worth trying with various NFS versions (v3,v4,v4.1,v4.2). The locking tests will fail on current RHEL9. Patches to fix those last locking problems are upstream in 5.15. Note to myself: the NFS re-export is marked as tech-preview in RHEL8 for now (see Bug 1972229). Changing the title; I want to make *very* sure we emphasize that there are some important limitations. (In reply to J. Bruce Fields from comment #1) > https://lore.kernel.org/linux-nfs/20210921143259.GB21704@fieldses.org/ may > be a starting point for documentation. > Bruce, what do you think about pulling in the documentation commit to RHEL9.0 GA since this is a new feature and it will explain the limitations right? Then Red Hat docs can point at the official kernel tree rather than repeating the text there. commit dc451bbc6f54a2c7bacef7ec445718709071b61c Author: J. Bruce Fields <bfields> Date: Fri Sep 10 14:42:54 2021 -0400 nfs: reexport documentation We've supported reexport for a while but documentation is limited. This is mainly a simplified version of the text I wrote for the linux-nfs wiki at https://wiki.linux-nfs.org/wiki/index.php/NFS_re-export. Signed-off-by: J. Bruce Fields <bfields> diff --git a/Documentation/filesystems/nfs/index.rst b/Documentation/filesystems/nfs/index.rst (In reply to Dave Wysochanski from comment #4) > Bruce, what do you think about pulling in the documentation commit to > RHEL9.0 GA since this is a new feature and it will explain the limitations > right? Then Red Hat docs can point at the official kernel tree rather than > repeating the text there. That sounds reasonable to me. Marking for 9.1.0 for now as I'm not sure this is even going in 9.0 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 (Moderate: kernel security, bug fix, and enhancement 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/RHSA-2022:8267 |