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<p>No. Several others have asked me the same thing, so that seems
like it might be the issue. The only problem with that solution is
that the user claimed his program worked just fine up until a
couple of weeks ago, so if that is the issue, I'll still be
scratching my head trying to figure out how/what changed</p>
<p><br>
</p>
<pre class="moz-signature" cols="72">Prentice </pre>
<div class="moz-cite-prefix">On 02/15/2018 12:31 PM, Alexander I
Kulyavtsev wrote:<br>
</div>
<blockquote type="cite"
cite="mid:173CB8A9-10C6-43AC-8757-EBEB0A3A9DED@fnal.gov">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
<div class="">Do you have <b class="">flock</b> option in fstab
for lustre mount or in command you use to mount lustre on
client?</div>
<div class=""><br class="">
</div>
<div class="">Search for flock on lustre wiki</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span><a
href="http://wiki.lustre.org/Mounting_a_Lustre_File_System_on_Client_Nodes"
class="" moz-do-not-send="true">http://wiki.lustre.org/Mounting_a_Lustre_File_System_on_Client_Nodes</a></div>
<div class="">or lustre manual</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"></span><a
href="http://doc.lustre.org/lustre_manual.pdf" class=""
moz-do-not-send="true">http://doc.lustre.org/lustre_manual.pdf</a></div>
<div class=""><br class="">
</div>
<div class="">Here are links where to start learning about lustre:</div>
<div class="">* <a
href="http://lustre.org/getting-started-with-lustre/" class=""
moz-do-not-send="true">
http://lustre.org/getting-started-with-lustre/</a></div>
<div class="">* <a href="http://wiki.lustre.org" class=""
moz-do-not-send="true">http://wiki.lustre.org</a></div>
<div class="">* <a href="https://wiki.hpdd.intel.com" class=""
moz-do-not-send="true">https://wiki.hpdd.intel.com</a></div>
<div class="">* <a href="http://jira.hpdd.intel.com" class=""
moz-do-not-send="true">jira.hpdd.intel.com</a></div>
<div class="">* <a href="http://opensfs.org/lustre/" class=""
moz-do-not-send="true">http://opensfs.org/lustre/</a></div>
<div class=""><br class="">
</div>
<div class="">Alex.</div>
<br class="">
<div>
<blockquote type="cite" class="">
<div class="">On Feb 15, 2018, at 11:02 AM, Prentice Bisbal
<<a href="mailto:pbisbal@pppl.gov" class=""
moz-do-not-send="true">pbisbal@pppl.gov</a>> wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div class="">Hi.<br class="">
<br class="">
I'm an experience HPC system admin, but I know almost
nothing about Lustre administration. The system admin who
administered our small Lustre filesystem recently retired,
and no one has filled that gap yet. A user recently
reported they are now getting file-locking errors from a
program they've run repeatedly on Lustre in the past. When
the run the same program on an NFS filesystem, the error
goes away. I've cut-and-pasted the error messages below.<br
class="">
<br class="">
Since I have real experience as a Lustre admin, I turned
to google, and it looks like it might be that the
file-locking daemon died (if Lustre has a separate
file-lock daemon), or somehow file-locking was recently
disabled. If that is possible, how do I check this, and
restart or re-enable if necessary? I skimmed the user
manual, and could not find anything on either of these
issues.<br class="">
<br class="">
Any and all help will be greatly appreciated.<br class="">
<br class="">
Some of the error messages:<br class="">
<br class="">
HDF5-DIAG: Error detected in HDF5 (1.10.0-patch1)
MPI-process 9:<br class="">
#000: H5F.c line 579 in H5Fopen(): unable to open file<br
class="">
major: File accessibilty<br class="">
minor: Unable to open file<br class="">
#001: H5Fint.c line 1168 in H5F_open(): unable to lock
the file or initialize file structure<br class="">
major: File accessibilty<br class="">
minor: Unable to open file<br class="">
#002: H5FD.c line 1821 in H5FD_lock(): driver lock
request failed<br class="">
major: Virtual File Layer<br class="">
minor: Can't update object<br class="">
#003: H5FDsec2.c line 939 in H5FD_sec2_lock(): unable to
flock file, errno = 38, error message = 'Function not
implemented'<br class="">
major: File accessibilty<br class="">
minor: Bad file ID accessed<br class="">
Error: couldn't open file HDF5-DIAG: Error detected in
HDF5 (1.10.0-patch1) MPI-process 13:<br class="">
#000: H5F.c line 579 in H5Fopen(): unable to open file<br
class="">
major: File accessibilty<br class="">
minor: Unable to open file<br class="">
#001: H5Fint.c line 1168 in H5F_open(): unable to lock
the file or initialize file structure<br class="">
major: File accessibilty<br class="">
minor: Unable to open file<br class="">
#002: H5FD.c line 1821 in H5FD_lock(): driver lock
request failed<br class="">
major: Virtual File Layer<br class="">
minor: Can't update object<br class="">
#003: H5FDsec2.c line 939 in H5FD_sec2_lock(): unable to
flock file, errno = 38, error message = 'Function not
implemented'<br class="">
major: File accessibilty<br class="">
minor: Bad file ID accessed<br class="">
<br class="">
-- <br class="">
Prentice<br class="">
<br class="">
_______________________________________________<br
class="">
lustre-discuss mailing list<br class="">
<a href="mailto:lustre-discuss@lists.lustre.org" class=""
moz-do-not-send="true">lustre-discuss@lists.lustre.org</a><br
class="">
<a class="moz-txt-link-freetext" href="http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org">http://lists.lustre.org/listinfo.cgi/lustre-discuss-lustre.org</a><br
class="">
</div>
</div>
</blockquote>
</div>
<br class="">
</blockquote>
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