https://jira.whamcloud.com This file is an XML representation of an issue en-us 9.4.14 940014 05-12-2023 https://jira.whamcloud.com/browse/LU-4057 Lustre <p>If on server reexport sub-directory instead of root it not visible through NFS. There is no error during mount from both side NFS and Lustre but mount point is not valid.</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java">cd /net/l201u2/mnt/lustre &amp;&amp; ls export d????????? ? ? ? ? ? export stat /net/l201u2/mnt/lustre/export stat: cannot stat `/net/l201u2/mnt/lustre/export': Stale file handle </pre> </div></div> RHEL 6.4, Lustre master LU-4057

sub-directory NFS reexport issue

Bug Major Resolved Duplicate Dmitry Eremin Dmitry Eremin Thu, 3 Oct 2013 16:15:38 +0000 Wed, 20 Nov 2013 09:26:35 +0000 Wed, 20 Nov 2013 09:26:35 +0000 Lustre 2.5.0 0 2 <p>I can't get past the cd. Did you use no_subtree_check in /etc/exports? Can you post the /etc/exports and mount options you used?</p> <p>On Lustre node I launch llmount.sh and then service nfs start.</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"># mount l201u2@tcp:/lustre on /mnt/lustre type lustre (rw,user_xattr,flock) # cat /etc/exports /mnt/lustre/export 192.168.1.0/24(rw,no_root_squash,no_all_squash) </pre> </div></div> <p>On NFS node:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"># mount l201u2:/mnt/lustre/export on /net/l201u2/mnt/lustre/export type nfs (rw,nosuid,nodev,intr,sloppy,vers=4,addr=192.168.1.2,clientaddr=192.168.1.1) # ls -la /net/l201u2/mnt/lustre ls: cannot access /net/l201u2/mnt/lustre/export: Stale file handle total 0 dr-xr-xr-x 3 root root 0 Oct 5 16:02 . dr-xr-xr-x 3 root root 0 Oct 5 16:02 .. d????????? ? ? ? ? ? export </pre> </div></div> <p>The <b>no_subtree_check</b> option don't change behavior.</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"># cat /etc/exports /mnt/lustre/export 192.168.1.0/24(rw,no_root_squash,no_all_squash,no_subtree_check) </pre> </div></div> <p>The root cause is described in <a href="https://jira.whamcloud.com/browse/LU-2904" title="parallel-scale-nfsv3: FAIL: setup nfs failed!" class="issue-link" data-issue-key="LU-2904"><del>LU-2904</del></a>:<br/> nfs defects, it does not work if the "inode::i_ino" is larger than 2^32, which is known issue.</p> Related LU-2904 LU-3550 Development Rank 1|hzw4pr: Rank (Obsolete) 10874 Severity