<div dir="ltr"><div dir="ltr"><div>Thank you Chad for answering,</div><div>We are using the patched kernel on the MDT/OSS<br></div><div>The problem is in the group space quota.</div><div>In any case I enabled project quota just for future purposes.</div><div>There are no defined projects, do you think it can still pose a problem?<br></div><div><br></div><div>Best,</div><div>David<br></div><div><br></div><div><br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Aug 26, 2020 at 3:18 PM Chad DeWitt <<a href="mailto:ccdewitt@uncc.edu">ccdewitt@uncc.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr">Hi David,<div><br></div><div>Hope you're doing well.</div><div><br></div><div>This is a total shot in the dark, but depending on the kernel version you are running, you may need a patched kernel to use project quotas. I'm not sure what the symptoms would be, but it may be worth turning off project quotas and seeing if doing so resolves your issue:</div><div><br></div></div></div></div></div><blockquote style="margin:0px 0px 0px 40px;border:medium none;padding:0px"><div><div><div><div><div><font face="monospace">lctl conf_param technion.quota.mdt=none<br></font></div><div><font face="monospace">lctl conf_param technion.quota.mdt=ug<br></font></div><div><font face="monospace">lctl conf_param technion.<span>quota</span>.ost=none</font></div></div></div></div></div><div><div><div><div><div><font face="monospace">lctl conf_param technion.<span>quota</span>.ost=ug</font></div></div></div></div></div><div><font face="monospace"><br></font></div></blockquote><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div>(Looks like you have been running project quota on your MDT for a while without issue, so this may be a deadend.)</div><div><br></div><div>Here's more info concerning when a patched kernel is necessary for project quotas (25.2. Enabling Disk Quotas):</div><div><br></div></div></div></div></div></div><blockquote style="margin:0px 0px 0px 40px;border:medium none;padding:0px"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><a href="http://doc.lustre.org/lustre_manual.xhtml" target="_blank">http://doc.lustre.org/lustre_manual.xhtml</a></div></div></div></div></div></div></blockquote><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div><br></div><div>Cheers,</div><div>Chad</div><div><br clear="all"><div><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><p style="margin:0in 0in 0.0001pt"><span style="background-color:rgba(255,255,255,0)"><font size="2" face="monospace, monospace">------------------------------------------------------------<u></u><u></u></font></span></p><p style="margin:0in 0in 0.0001pt"><span style="background-color:rgba(255,255,255,0)"><font size="2" face="monospace, monospace">Chad DeWitt, CISSP | University Research Computing</font></span></p><p style="margin:0in 0in 0.0001pt"><span style="background-color:rgba(255,255,255,0)"><font size="2" face="monospace, monospace">UNC Charlotte <b>| </b>Office of OneIT</font></span></p><p style="margin:0in 0in 0.0001pt"><font size="2" face="monospace, monospace" color="#000000"><span style="background-color:rgba(255,255,255,0)"><a href="mailto:ccdewitt@uncc.edu" target="_blank">ccdewitt@uncc.edu</a> </span></font></p><p style="margin:0in 0in 0.0001pt"><span style="background-color:rgba(255,255,255,0)"><font size="2" face="monospace, monospace">------------------------------------------------------------</font></span></p><p style="margin:0in 0in 0.0001pt"><br></p></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Aug 25, 2020 at 3:04 AM David Cohen <<a href="mailto:cdavid@physics.technion.ac.il" target="_blank">cdavid@physics.technion.ac.il</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">[<b><font color="red">Caution</font></b>: Email from External Sender. Do not click or open links or attachments unless you know this sender.]<br><span> </span><div dir="ltr"><div>Hi,</div><div>Still hoping for a reply...</div><div><br></div><div><div dir="ltr"><div>It seems to me that old groups are more affected by the issue than new ones that were created after a major disk migration.</div><div>It seems that the <span>quota</span> enforcement is somehow based on a counter other than the accounting as the accounting produces the same numbers as du.</div><div>So if quota is calculated separately from accounting, it is possible that quota is broken and keeps values from removed disks, while accounting is correct.<br></div></div></div><div>So following that suspicion I tried to force the FS to recalculate quota.</div><div>I tried:</div><div>lctl conf_param technion.quota.ost=none</div><div>and back to:<br></div><div>lctl conf_param technion.quota.ost=ugp</div><div><br></div><div>I tried running on mds and all ost:</div><div>tune2fs -O ^quota</div><div>and on again:</div><div>tune2fs -O quota</div><div>and after each attempt, also:</div><div>lctl lfsck_start -A -t all -o -e continue</div><div><br></div><div>But still the problem persists and groups under the quota usage get blocked with "quota exceeded"<br></div><div><br></div><div>Best,</div><div>David<br></div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sun, Aug 16, 2020 at 8:41 AM David Cohen <<a href="mailto:cdavid@physics.technion.ac.il" target="_blank">cdavid@physics.technion.ac.il</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hi,</div><div>Adding some more information.</div><div>A Few months ago the data on the Lustre fs was migrated to new physical storage.</div><div>After successful migration the old ost were marked as active=0</div><div>(lctl conf_param technion-OST0001.osc.active=0)</div><div><br></div><div>Since then all the clients were unmounted and mounted.</div><div>tunefs.lustre --writeconf was executed on the mgs/mdt and all the ost.</div><div>lctl dl don't show the old ost anymore, but when querying the quota they still appear.</div><div>As I see that new users are less affected by the "quota exceeded" problem (blocked from writing while quota is not filled),</div><div>I suspect that quota calculation is still summing values from the old ost:</div><div><br></div><div><b>lfs quota -g -v md_kaplan /storage/</b><br>Disk quotas for grp md_kaplan (gid 10028):<br> Filesystem kbytes quota limit grace files quota limit grace<br> /storage/ 4823987000 0 5368709120 - 143596 0 0 -<br>technion-MDT0000_UUID<br> 37028 - 0 - 143596 - 0 -<br>quotactl ost0 failed.<br>quotactl ost1 failed.<br>quotactl ost2 failed.<br>quotactl ost3 failed.<br>quotactl ost4 failed.<br>quotactl ost5 failed.<br>quotactl ost6 failed.<br>quotactl ost7 failed.<br>quotactl ost8 failed.<br>quotactl ost9 failed.<br>quotactl ost10 failed.<br>quotactl ost11 failed.<br>quotactl ost12 failed.<br>quotactl ost13 failed.<br>quotactl ost14 failed.<br>quotactl ost15 failed.<br>quotactl ost16 failed.<br>quotactl ost17 failed.<br>quotactl ost18 failed.<br>quotactl ost19 failed.<br>quotactl ost20 failed.<br>technion-OST0015_UUID<br> 114429464* - 114429464 - - - - -<br>technion-OST0016_UUID<br> 92938588 - 92938592 - - - - -<br>technion-OST0017_UUID<br> 128496468* - 128496468 - - - - -<br>technion-OST0018_UUID<br> 191478704* - 191478704 - - - - -<br>technion-OST0019_UUID<br> 107720552 - 107720560 - - - - -<br>technion-OST001a_UUID<br> 165631952* - 165631952 - - - - -<br>technion-OST001b_UUID<br> 460714156* - 460714156 - - - - -<br>technion-OST001c_UUID<br> 157182900* - 157182900 - - - - -<br>technion-OST001d_UUID<br> 102945952* - 102945952 - - - - -<br>technion-OST001e_UUID<br> 175840980* - 175840980 - - - - -<br>technion-OST001f_UUID<br> 142666872* - 142666872 - - - - -<br>technion-OST0020_UUID<br> 188147548* - 188147548 - - - - -<br>technion-OST0021_UUID<br> 125914240* - 125914240 - - - - -<br>technion-OST0022_UUID<br> 186390800* - 186390800 - - - - -<br>technion-OST0023_UUID<br> 115386876 - 115386884 - - - - -<br>technion-OST0024_UUID<br> 127139556* - 127139556 - - - - -<br>technion-OST0025_UUID<br> 179666580* - 179666580 - - - - -<br>technion-OST0026_UUID<br> 147837348 - 147837356 - - - - -<br>technion-OST0027_UUID<br> 129823528 - 129823536 - - - - -<br>technion-OST0028_UUID<br> 158270776 - 158270784 - - - - -<br>technion-OST0029_UUID<br> 168762120 - 168763104 - - - - -<br>technion-OST002a_UUID<br> 164235684 - 164235688 - - - - -<br>technion-OST002b_UUID<br> 147512200 - 147512204 - - - - -<br>technion-OST002c_UUID<br> 158046652 - 158046668 - - - - -<br>technion-OST002d_UUID<br> 199314048* - 199314048 - - - - -<br>technion-OST002e_UUID<br> 209187196* - 209187196 - - - - -<br>technion-OST002f_UUID<br> 162586732 - 162586764 - - - - -<br>technion-OST0030_UUID<br> 131248812* - 131248812 - - - - -<br>technion-OST0031_UUID<br> 134665176* - 134665176 - - - - -<br>technion-OST0032_UUID<br> 149767512* - 149767512 - - - - -<br>Total allocated inode limit: 0, total allocated block limit: 4823951056<br>Some errors happened when getting quota info. Some devices may be not working or deactivated. The data in "[]" is inaccurate.<br></div><div><br></div><div><br></div><div><b>lfs quota -g -h md_kaplan /storage/</b><br>Disk quotas for grp md_kaplan (gid 10028):<br> Filesystem used quota limit grace files quota limit grace<br> /storage/ 4.493T 0k 5T - 143596 0 0 -<br></div><div><div dir="ltr"><div dir="ltr"><br></div></div></div><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Tue, Aug 11, 2020 at 7:35 AM David Cohen <<a href="mailto:cdavid@physics.technion.ac.il" target="_blank">cdavid@physics.technion.ac.il</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Hi,<br clear="all"><div><div dir="ltr"><div>I'm running Lustre 2.10.5 on the oss and mds, and 2.10.7 on the clients.</div><div>While inode quota ons mdt worked fine for a while now:</div><div>lctl conf_param technion.quota.mdt=ugp</div><div>When, few days ago I turned on quota on ost:</div><div>lctl conf_param technion.quota.ost=ugp</div><div>Users started getting "Disk quota exceeded" error messages while quota is not filled</div><div><br></div><div>Actions taken:</div><div>Full e2fsck -f -y to all the file system, mdt and ost.</div><div>lctl lfsck_start -A -t all -o -e continue</div><div>turning quota to none and back.</div><div><br></div><div>None of the above solved the problem.</div><div><br></div><div>lctl lfsck_query <br></div><div><br></div><div>layout_mdts_init: 0<br>layout_mdts_scanning-phase1: 0<br>layout_mdts_scanning-phase2: 0<br>layout_mdts_completed: 0<br>layout_mdts_failed: 0<br>layout_mdts_stopped: 0<br>layout_mdts_paused: 0<br>layout_mdts_crashed: 0<br><b>layout_mdts_partial: 1 </b># is that normal output?<br>layout_mdts_co-failed: 0<br>layout_mdts_co-stopped: 0<br>layout_mdts_co-paused: 0<br>layout_mdts_unknown: 0<br>layout_osts_init: 0<br>layout_osts_scanning-phase1: 0<br>layout_osts_scanning-phase2: 0<br>layout_osts_completed: 30<br>layout_osts_failed: 0<br>layout_osts_stopped: 0<br>layout_osts_paused: 0<br>layout_osts_crashed: 0<br>layout_osts_partial: 0<br>layout_osts_co-failed: 0<br>layout_osts_co-stopped: 0<br>layout_osts_co-paused: 0<br>layout_osts_unknown: 0<br>layout_repaired: 15<br>namespace_mdts_init: 0<br>namespace_mdts_scanning-phase1: 0<br>namespace_mdts_scanning-phase2: 0<br>namespace_mdts_completed: 1<br>namespace_mdts_failed: 0<br>namespace_mdts_stopped: 0<br>namespace_mdts_paused: 0<br>namespace_mdts_crashed: 0<br>namespace_mdts_partial: 0<br>namespace_mdts_co-failed: 0<br>namespace_mdts_co-stopped: 0<br>namespace_mdts_co-paused: 0<br>namespace_mdts_unknown: 0<br>namespace_osts_init: 0<br>namespace_osts_scanning-phase1: 0<br>namespace_osts_scanning-phase2: 0<br>namespace_osts_completed: 0<br>namespace_osts_failed: 0<br>namespace_osts_stopped: 0<br>namespace_osts_paused: 0<br>namespace_osts_crashed: 0<br>namespace_osts_partial: 0<br>namespace_osts_co-failed: 0<br>namespace_osts_co-stopped: 0<br>namespace_osts_co-paused: 0<br>namespace_osts_unknown: 0<br>namespace_repaired: 99<br><br><br><br><br></div></div></div></div>
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