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  1. Red Hat OpenStack Services on OpenShift
  2. OSPRH-16597

NFS Share Stale Mount State: External Ceph Cluster Accessibility Issue

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Major Major
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    • rhos-17.1.6
    • openstack-manila
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    • 8
    • True
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      Needs fix from https://issues.redhat.com/browse/OSPRH-16941
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      .Migration from iptables to nftables causes network instability

      During minor updates, the migration from iptables to nftables causes network instability. The issue impacts the existing network connections from guest VMs to CephFS-NFS (NFS-Ganesha) and can result in unpredictable client behavior.

      *Workaround:*

      . Upgrade one node at a time using by using the `--limit` option.
      . Before upgrading a node, verify that CephFS-NFS is not running on the node that is being updated. You can switch CephFS-NFS to a different node before performing the upgrade.
      Show
      .Migration from iptables to nftables causes network instability During minor updates, the migration from iptables to nftables causes network instability. The issue impacts the existing network connections from guest VMs to CephFS-NFS (NFS-Ganesha) and can result in unpredictable client behavior. *Workaround:* . Upgrade one node at a time using by using the `--limit` option. . Before upgrading a node, verify that CephFS-NFS is not running on the node that is being updated. You can switch CephFS-NFS to a different node before performing the upgrade.
    • Known Issue
    • Done
    • Critical

      To Reproduce Steps to reproduce the behavior:

      It has the similar issue as https://issues.redhat.com/browse/OSPRH-13968

      Customer having RHOSP  Minor Upgrade from 17.1.2 to 17.1.6, During controller upgrade, existing NFS mount went in "Stale file handle"

      Customer already applied the hotfixes but still not working

      root@NFS-Jpe6b:/etc/netplan# mount -t nfs -v 172.27.0.10:/volumes/_nogroup/4003b626-1d16-4a88-ab71-da28b8bac94b/1017d576-ae8a-4cc8-8fdb-6d7f452638e1 /NFS
      mount.nfs: Stale file handle
       
      root@NFS-Jpe6b:/etc/netplan# mount -t nfs -v 172.27.0.10:/volumes/_nogroup/4003b626-1d16-4a88-ab71-da28b8bac94b/1017d576-ae8a-4cc8-8fdb-6d7f452638e1 /NFS
      mount.nfs: timeout set for Mon May 12 01:27:17 2025
      mount.nfs: trying text-based options 'vers=4.2,addr=172.27.0.10,clientaddr=172.27.3.23'
      mount.nfs: mount(2): No such file or directory
      mount.nfs: trying text-based options 'addr=172.27.0.10'
      mount.nfs: prog 100003, trying vers=3, prot=6
      mount.nfs: portmap query retrying: RPC: Timed out
      mount.nfs: prog 100003, trying vers=3, prot=17
      mount.nfs: portmap query failed: RPC: Timed out
      mount.nfs: trying text-based options 'vers=4.2,addr=172.27.0.

      Expected behavior

      • NFS Mounts should work 

      Device Info (please complete the following information):

      • OS Version: RHEL9
      • RHOSP17.1.6

      Bug impact

      • Although customers were able to mount the NFS shares, data from these shares was not accessible on their VMs, preventing them from reading or writing any files. This disrupted their ability to access critical data and impacted their business operations.

      Known workaround

      • Cu  applied WA to remove and add the ACLs which resolved issue

      Additional context

              rhn-engineering-gpachara Goutham Pacha Ravi
              rhn-engineering-gkadam Ganesh Kadam
              Carlos da Silva
              rhos-storage-manila
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                Created:
                Updated: