[ovirt-users] open error -13 = sanlock
Sahina Bose
sabose at redhat.com
Wed Mar 2 01:32:48 EST 2016
On 03/02/2016 03:45 AM, Nir Soffer wrote:
> On Tue, Mar 1, 2016 at 10:51 PM, paf1 at email.cz <mailto:paf1 at email.cz>
> <paf1 at email.cz <mailto:paf1 at email.cz>> wrote:
> >
> > HI,
> > requested output:
> >
> > # ls -lh /rhev/data-center/mnt/glusterSD/localhost:*/*/dom_md
> >
> >
> /rhev/data-center/mnt/glusterSD/localhost:_1KVM12-BCK/0fcad888-d573-47be-bef3-0bc0b7a99fb7/dom_md:
> > total 2,1M
> > -rw-rw---- 1 vdsm kvm 1,0M 1. bře 21.28 ids <-- good
> > -rw-rw---- 1 vdsm kvm 16M 7. lis 22.16 inbox
> > -rw-rw---- 1 vdsm kvm 2,0M 7. lis 22.17 leases
> > -rw-r--r-- 1 vdsm kvm 335 7. lis 22.17 metadata
> > -rw-rw---- 1 vdsm kvm 16M 7. lis 22.16 outbox
> >
> >
> /rhev/data-center/mnt/glusterSD/localhost:_1KVM12-P1/553d9b92-e4a0-4042-a579-4cabeb55ded4/dom_md:
> > total 1,1M
> > -rw-r--r-- 1 vdsm kvm 0 24. úno 07.41 ids <-- bad (sanlock
> cannot write, other can read)
> > -rw-rw---- 1 vdsm kvm 16M 7. lis 00.14 inbox
> > -rw-rw---- 1 vdsm kvm 2,0M 7. lis 03.56 leases
> > -rw-r--r-- 1 vdsm kvm 333 7. lis 03.56 metadata
> > -rw-rw---- 1 vdsm kvm 16M 7. lis 00.14 outbox
> >
> >
> /rhev/data-center/mnt/glusterSD/localhost:_1KVM12-P2/88adbd49-62d6-45b1-9992-b04464a04112/dom_md:
> > total 1,1M
> > -rw-r--r-- 1 vdsm kvm 0 24. úno 07.43 ids <-- bad (sanlock
> cannot write, other can read)
> > -rw-rw---- 1 vdsm kvm 16M 7. lis 00.15 inbox
> > -rw-rw---- 1 vdsm kvm 2,0M 7. lis 22.14 leases
> > -rw-r--r-- 1 vdsm kvm 333 7. lis 22.14 metadata
> > -rw-rw---- 1 vdsm kvm 16M 7. lis 00.15 outbox
> >
> >
> /rhev/data-center/mnt/glusterSD/localhost:_1KVM12-P3/3c34ad63-6c66-4e23-ab46-084f3d70b147/dom_md:
> > total 1,1M
> > -rw-r--r-- 1 vdsm kvm 0 24. úno 07.43 ids <-- bad (sanlock
> cannot write, other can read)
> > -rw-rw---- 1 vdsm kvm 16M 23. úno 22.51 inbox
> > -rw-rw---- 1 vdsm kvm 2,0M 23. úno 23.12 leases
> > -rw-r--r-- 1 vdsm kvm 998 25. úno 00.35 metadata
> > -rw-rw---- 1 vdsm kvm 16M 7. lis 00.16 outbox
> >
> >
> /rhev/data-center/mnt/glusterSD/localhost:_1KVM12-P4/7f52b697-c199-4f58-89aa-102d44327124/dom_md:
> > total 1,1M
> > -rw-r--r-- 1 vdsm kvm 0 24. úno 07.44 ids <-- bad (sanlock
> cannot write, other can read)
> > -rw-rw---- 1 vdsm kvm 16M 7. lis 00.17 inbox
> > -rw-rw---- 1 vdsm kvm 2,0M 7. lis 00.18 leases
> > -rw-r--r-- 1 vdsm kvm 333 7. lis 00.18 metadata
> > -rw-rw---- 1 vdsm kvm 16M 7. lis 00.17 outbox
> >
> >
> /rhev/data-center/mnt/glusterSD/localhost:_2KVM12-P1/42d710a9-b844-43dc-be41-77002d1cd553/dom_md:
> > total 1,1M
> > -rw-rw-r-- 1 vdsm kvm 0 24. úno 07.32 ids <-- bad (other
> can read)
> > -rw-rw---- 1 vdsm kvm 16M 7. lis 22.18 inbox
> > -rw-rw---- 1 vdsm kvm 2,0M 7. lis 22.18 leases
> > -rw-r--r-- 1 vdsm kvm 333 7. lis 22.18 metadata
> > -rw-rw---- 1 vdsm kvm 16M 7. lis 22.18 outbox
> >
> >
> /rhev/data-center/mnt/glusterSD/localhost:_2KVM12-P2/ff71b47b-0f72-4528-9bfe-c3da888e47f0/dom_md:
> > total 3,0M
> > -rw-rw-r-- 1 vdsm kvm 1,0M 1. bře 21.28 ids <-- bad (other
> can read)
> > -rw-rw---- 1 vdsm kvm 16M 25. úno 00.42 inbox
> > -rw-rw---- 1 vdsm kvm 2,0M 25. úno 00.44 leases
> > -rw-r--r-- 1 vdsm kvm 997 24. úno 02.46 metadata
> > -rw-rw---- 1 vdsm kvm 16M 25. úno 00.44 outbox
> >
> >
> /rhev/data-center/mnt/glusterSD/localhost:_2KVM12-P3/ef010d08-aed1-41c4-ba9a-e6d9bdecb4b4/dom_md:
> > total 2,1M
> > -rw-r--r-- 1 vdsm kvm 0 24. úno 07.34 ids <-- bad (sanlock
> cannot write, other can read)
> > -rw-rw---- 1 vdsm kvm 16M 23. úno 22.35 inbox
> > -rw-rw---- 1 vdsm kvm 2,0M 23. úno 22.38 leases
> > -rw-r--r-- 1 vdsm kvm 1,1K 24. úno 19.07 metadata
> > -rw-rw---- 1 vdsm kvm 16M 23. úno 22.27 outbox
> >
> >
> /rhev/data-center/mnt/glusterSD/localhost:_2KVM12__P4/300e9ac8-3c2f-4703-9bb1-1df2130c7c97/dom_md:
> > total 3,0M
> > -rw-rw-r-- 1 vdsm kvm 1,0M 1. bře 21.28 ids <-- bad (other
> can read)
> > -rw-rw-r-- 1 vdsm kvm 16M 6. lis 23.50 inbox <-- bad (other can
> read)
> > -rw-rw-r-- 1 vdsm kvm 2,0M 6. lis 23.51 leases <-- bad (other can
> read)
> > -rw-rw-r-- 1 vdsm kvm 734 7. lis 02.13 metadata <-- bad (group
> can write, other can read)
> > -rw-rw-r-- 1 vdsm kvm 16M 6. lis 16.55 outbox <-- bad (other can
> read)
> >
> >
> /rhev/data-center/mnt/glusterSD/localhost:_2KVM12-P5/1ca56b45-701e-4c22-9f59-3aebea4d8477/dom_md:
> > total 1,1M
> > -rw-rw-r-- 1 vdsm kvm 0 24. úno 07.35 ids <-- bad (other can read)
> > -rw-rw-r-- 1 vdsm kvm 16M 24. úno 01.06 inbox
> > -rw-rw-r-- 1 vdsm kvm 2,0M 24. úno 02.44 leases
> > -rw-r--r-- 1 vdsm kvm 998 24. úno 19.07 metadata
> > -rw-rw-r-- 1 vdsm kvm 16M 7. lis 22.20 outbox
>
>
> It should look like this:
>
> -rw-rw----. 1 vdsm kvm 1.0M Mar 1 23:36 ids
> -rw-rw----. 1 vdsm kvm 2.0M Mar 1 23:35 leases
> -rw-r--r--. 1 vdsm kvm 353 Mar 1 23:35 metadata
> -rw-rw----. 1 vdsm kvm 16M Mar 1 23:34 outbox
> -rw-rw----. 1 vdsm kvm 16M Mar 1 23:34 inbox
>
> This explains the EACCES error.
>
> You can start by fixing the permissions manually, you can do this online.
>
> > The ids files was generated by "touch" command after deleting them
> due "sanlock locking hang" gluster crash & reboot
> > I expected that they will be filled automaticaly after gluster
> reboot ( the shadow copy from ".gluster " directory was deleted &
> created empty too )
>
> I don't know about gluster shadow copy, I would not play with gluster
> internals.
> Adding Sahina for advice.
Did you generate the ids file on the mount point.
Ravi, can you help here?
>
> > OK, it looks that sanlock can't work with empty file or rewrite them .
> > Am I right ??
>
> Yes, the files must be initialized before sanlock can use them.
>
> You can initialize the file like this:
>
> sanlock direct init -s <sd_uuid>:0:repair/<sd_uuid>/dom_md/ids:0
>
> Taken from
> http://lists.ovirt.org/pipermail/users/2016-February/038046.html
>
> > The last point - about "ids" workaround - this is offline version =
> VMs have to be moved out from for continual running with maintenance
> volume mode
> > But this is not acceptable in current situation, so the question
> again, is it safe to do it online ?? ( YES / NO )
>
> The ids file is accessed only by sanlock. I guess that you don't have
> a running
> SPM on this DC, since sanlock fails to acquire a host id, so you are
> pretty safe
> to fix the permissions and initialize the ids files.
>
> I would do this:
>
> 1. Stop engine, so it will not try to start vdsm
> 2. Stop vdsm on all hosts, so they do not try to acquire a host id
> with sanlock
> This does not affect running vms
> 3. Fix the permissions on the ids file, via glusterfs mount
> 4. Initialize the ids files from one of the hosts, via the glusterfs mount
> This should fix the ids files on all replicas
> 5. Start vdsm on all hosts
> 6. Start engine
>
> Engine will connect to all hosts, hosts will connect to storage and
> try to acquire a host id.
> Then Engine will start the SPM on one of the hosts, and your DC should
> become up.
>
> David, Sahina, can you confirm that this procedure is safe?
Yes, correcting from the mount point should fix it on all replicas
>
> Nir
>
> >
> > regs.
> > Pavel
> >
> >
> >
> > On 1.3.2016 18:38, Nir Soffer wrote:
> >
> > On Tue, Mar 1, 2016 at 5:07 PM, paf1 at email.cz <mailto:paf1 at email.cz>
> <paf1 at email.cz <mailto:paf1 at email.cz>> wrote:
> >>
> >> Hello, can anybody explain this error no.13 ( open file ) in
> sanlock.log .
> >
> >
> > This is EACCES
> >
> > Can you share the outoput of:
> >
> > ls -lh /rhev/data-center/mnt/<server>:<_path>/<sd_uuid>/dom_md
> >
> >>
> >>
> >> The size of "ids" file is zero (0)
> >
> >
> > This is how we create the ids file when initializing it.
> >
> > But then we use sanlock to initialize the ids file, and it should be
> 1MiB after that.
> >
> > Is this ids files created by vdsm, or one you created yourself?
> >
> >>
> >> 2016-02-28 03:25:46+0100 269626 [1951]: open error -13
> /rhev/data-center/mnt/glusterSD/localhost:_1KVM12-P4/7f52b697-c199-4f58-89aa-102d44327124/dom_md/ids
> >> 2016-02-28 03:25:46+0100 269626 [1951]: s187985 open_disk
> /rhev/data-center/mnt/glusterSD/localhost:_1KVM12-P4/7f52b697-c199-4f58-89aa-102d44327124/dom_md/ids
> error -13
> >> 2016-02-28 03:25:56+0100 269636 [11304]: s187992 lockspace
> 7f52b697-c199-4f58-89aa-102d44327124:1:/rhev/data-center/mnt/glusterSD/localhost:_1KVM12-P4/7f52b697-c199-4f58-89aa-102d44327124/dom_md/ids:0
> >>
> >> If the main problem is about zero file size, can I regenerate this
> file online securely , with no VM dependence ????
> >
> >
> > Yes, I think I already referred to the instructions how to do that
> in a previous mail.
> >
> >>
> >>
> >> dist = RHEL - 7 - 2.1511
> >> kernel = 3.10.0 - 327.10.1.el7.x86_64
> >> KVM = 2.3.0 - 29.1.el7
> >> libvirt = libvirt-1.2.17-13.el7_2.3
> >> vdsm = vdsm-4.16.30-0.el7
> >> GlusterFS = glusterfs-3.7.8-1.el7
> >>
> >>
> >> regs.
> >> Pavel
> >>
> >> _______________________________________________
> >> Users mailing list
> >> Users at ovirt.org <mailto:Users at ovirt.org>
> >> http://lists.ovirt.org/mailman/listinfo/users
> >>
> >
> >
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