Note: "permalinks" may not be as permanent as we would like,
direct links of old sources may well be a few messages off.
Hi Dileep, do you use Pacemaker? If you have a shell opened at the mount point of the DRBD device Pacemaker can't unmount while stopping the resource. Check the "crm status" output. Please run "lsof | grep <mount_point>" to determine which process keeps the device opened. Regards, Sebastian Linux Kernel Developer On 30/06/11 13:09, Dileep Nayak wrote: > Hi All, > > While the issue "device held open by someone" was observed again today, we > found that e2fsck reported "Device or resource busy" > > # e2fsck /dev/drbd0 > e2fsck 1.39 (29-May-2006) > e2fsck: Device or resource busy while trying to open /dev/drbd0 > Filesystem mounted or opened exclusively by another program? > > > Earlier we did not observe such "Device or resource busy" output from > e2fsck. > > Please share your thoughts on the same. > > Thanks > Dileep > > > > O 4. Re: DRBD device held open by someone (Dileep Nayak) > > >> >> >> >> >> >> ------------------------------ >> >> Message: 4 >> Date: Wed, 22 Jun 2011 13:22:47 +0530 >> From: Dileep Nayak <tech.disscuss2011 at gmail.com> >> Subject: Re: [DRBD-user] DRBD device held open by someone >> To: drbd-user at lists.linbit.com >> Message-ID: <BANLkTin2_qavGzsoEvxfgOSUCoMi5aDksA at mail.gmail.com> >> Content-Type: text/plain; charset="windows-1252" >> >> Thanks Lars for your reply. >> >> DRBD is used in conjunction with Linux-HA in a High Availability >> configuration to replicate data between the Active and Standby servers. >> >> Our product is running LVM (Logical Volume Manager) on top of DRBD. >> >> We are not using the nfs. The last point is not applicable in our case. >> >> And please can you explain bit more the below mentioned cases by you and >> how >> to detect/verify them when the issue ?Device is held open by someone? is >> occurred. >> >> Regards, >> >> Dileep Nayak >> >> >> >>> 6. Re: DRBD device held open by someone (Lars Ellenberg) >>> >>> >>> >> Message: 6 >> Date: Wed, 22 Jun 2011 00:01:49 +0200 >> From: Lars Ellenberg <lars.ellenberg at linbit.com> >> Subject: Re: [DRBD-user] DRBD device held open by someone >> To: drbd-user at lists.linbit.com >> Message-ID: <20110621220149.GF21892@ >> >>> barkeeper1-xen.linbit> >>> Content-Type: text/plain; charset=iso-8859-1 >>> >>> On Tue, Jun 21, 2011 at 10:10:41AM +0530, Dileep Nayak wrote: >>> >>>> TThanks Matt for your reply to the issue "*DRBD device held open by >>>> >>> someone* >>> >>>> ". >>>> Today the below problem has been seen again. >>>> >>>> >>>> State change failed: (-12) Device is held open by someone >>>> >>> *Sometimes it is just udev or equivalent doing a race. >>> Sometimes it is a unix domain socket or similar still held open >>> (won't necessary show up in lsof/fuser). >>> Sometimes it is some device mapper targets not yet taken down. >>> Sometimes it is nfs locks not being properly released (in time). >>> >>> What do you use DRBD for, what sits on top of it?* >>> >>> -- >>> : Lars Ellenberg >>> : LINBIT | Your Way to High Availability >>> : DRBD/HA support and consulting http://www.linbit.com >>> >>> DRBD? and LINBIT? are registered trademarks of LINBIT, Austria. >>> __ >>> please don't Cc me, but send to list -- I'm subscribed >>> >>> >>> ------------------------------ >>> >> -------------- next part -------------- >> An HTML attachment was scrubbed... >> URL: < >> http://lists.linbit.com/pipermail/drbd-user/attachments/20110622/c42d1f20/attachment.html >> >>> >> >> > > > > _______________________________________________ > drbd-user mailing list > drbd-user at lists.linbit.com > http://lists.linbit.com/mailman/listinfo/drbd-user > -- Sebastian Riemer Linux Kernel Developer ProfitBricks GmbH Greifswalder Str. 207 10405 Berlin, Germany Tel.: +49 - 30 - 51 64 09 20 Fax: +49 - 30 - 51 64 09 22 Email: sebastian.riemer at profitbricks.com Web: http://www.profitbricks.com/ Sitz der Gesellschaft: Berlin Registergericht: Amtsgericht Charlottenburg, HRB 125506 B Geschäftsführer: Andreas Gauger, Achim Weiss -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.linbit.com/pipermail/drbd-user/attachments/20110630/61b9184d/attachment.htm>