Hi there I have a problem with my lustre system, After using: * lctl --device 18 conf_param lustre-OST000d.osc.active=0 *on MDS to permanently deactivate OST, i have a trouble with lfs and lbug on lustre client. In a newly mount lustre client, and when i used lfs to check: *lfs check servers *lfs was hang and lbug kept dumping on my lustre client. I still could access my data in lustre client, but when i executed "*df -h*" command, it was hang with "*kernel panic - not syncing"* report, it''s really bad, i had to restart my server manually. Although at the same time, every other clients ( mounted client ) worked well, but i still really worry about my data. I don''t know whether this bug is harmful with my data or not. This problem is exactly like this bug<https://bugzilla.lustre.org/show_bug.cgi?id=18329>with lfs ( i found it by googling around ) . Although the status of this bug is "resolved" but i''m currently being in trouble with it, with all the same symptoms. I also found this post<http://lists.lustre.org/pipermail/lustre-discuss/2009-September/011657.html>from Andreas that mentioned a patch of this bug but i couldn''t find anything. I''m using Lustre 1.8 and CentOS 5.5 Could anyone give me some advice in this situation ? Is there a way to fix this bug ? Many thanks -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.lustre.org/pipermail/lustre-discuss/attachments/20110321/5412d60d/attachment.html
Hi, Exact error messages are useful in this case. -cf On 03/20/2011 11:16 AM, Lex wrote:> Hi there > > I have a problem with my lustre system, > > After using: * > > lctl --device 18 conf_param lustre-OST000d.osc.active=0 > > *on MDS to permanently deactivate OST, i have a trouble with lfs and > lbug on lustre client. In a newly mount lustre client, and when i used > lfs to check: > > *lfs check servers > > *lfs was hang and lbug kept dumping on my lustre client. > I still could access my data in lustre client, but when i executed > "*df -h*" command, it was hang with "*kernel panic - not syncing"* > report, it''s really bad, i had to restart my server manually. > > Although at the same time, every other clients ( mounted client ) > worked well, but i still really worry about my data. I don''t know > whether this bug is harmful with my data or not. > > This problem is exactly like this bug > <https://bugzilla.lustre.org/show_bug.cgi?id=18329> with lfs ( i found > it by googling around ) . > > Although the status of this bug is "resolved" but i''m currently being > in trouble with it, with all the same symptoms. > > I also found this post > <http://lists.lustre.org/pipermail/lustre-discuss/2009-September/011657.html> > from Andreas that mentioned a patch of this bug but i couldn''t find > anything. > > I''m using Lustre 1.8 and CentOS 5.5 > > Could anyone give me some advice in this situation ? Is there a way to > fix this bug ? > > Many thanks > > > > _______________________________________________ > Lustre-discuss mailing list > Lustre-discuss at lists.lustre.org > http://lists.lustre.org/mailman/listinfo/lustre-discuss
Hi Colin Sorry for replying you late I resolved my problem by activating my OST back: lctl --device 18 conf_param lustre-OST000d.osc.active=1 and use lctl --device number deactivate to manually deactivating that ost on my clients. And after, that i can mount lustre on my client smoothly ( manually deactivating ost after mounting, certainly ). Many thanks for your soon reply. On Mon, Mar 21, 2011 at 4:01 AM, Colin Faber <cfaber at gmail.com> wrote:> Hi, > > Exact error messages are useful in this case. > > -cf > > > > On 03/20/2011 11:16 AM, Lex wrote: > >> Hi there >> >> I have a problem with my lustre system, >> >> After using: * >> >> lctl --device 18 conf_param lustre-OST000d.osc.active=0 >> >> *on MDS to permanently deactivate OST, i have a trouble with lfs and lbug >> on lustre client. In a newly mount lustre client, and when i used lfs to >> check: >> >> *lfs check servers >> >> *lfs was hang and lbug kept dumping on my lustre client. >> I still could access my data in lustre client, but when i executed "*df >> -h*" command, it was hang with "*kernel panic - not syncing"* report, it''s >> really bad, i had to restart my server manually. >> >> Although at the same time, every other clients ( mounted client ) worked >> well, but i still really worry about my data. I don''t know whether this bug >> is harmful with my data or not. >> >> This problem is exactly like this bug < >> https://bugzilla.lustre.org/show_bug.cgi?id=18329> with lfs ( i found it >> by googling around ) . >> >> >> Although the status of this bug is "resolved" but i''m currently being in >> trouble with it, with all the same symptoms. >> >> I also found this post < >> http://lists.lustre.org/pipermail/lustre-discuss/2009-September/011657.html> >> from Andreas that mentioned a patch of this bug but i couldn''t find >> anything. >> >> >> I''m using Lustre 1.8 and CentOS 5.5 >> >> Could anyone give me some advice in this situation ? Is there a way to fix >> this bug ? >> >> Many thanks >> >> >> >> _______________________________________________ >> Lustre-discuss mailing list >> Lustre-discuss at lists.lustre.org >> http://lists.lustre.org/mailman/listinfo/lustre-discuss >> >-------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.lustre.org/pipermail/lustre-discuss/attachments/20110322/9a194858/attachment-0001.html