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Hi guys, <br>
thx a lot for your support .......at first.<br>
<br>
Because we had been under huge time pressure, we found "google
workaround" which delete both files . It helped, probabbly at first
steps of recover .<br>
eg: " # find /STORAGES/g1r5p5/GFS/ -samefile
/STORAGES/g1r5p5/GFS/3da46e07-d1ea-4f10-9250-6cbbb7b94d80/dom_md/ids
-print -delete "<br>
<br>
----------------------><br>
Well at first I'll fix permittions from mount points to 660 .<br>
If "ids" file will be writeable , can't became gluster colaps ??<br>
<br>
regs.Pavel<br>
<br>
<br>
<div class="moz-cite-prefix">On 2.3.2016 08:16, Ravishankar N wrote:<br>
</div>
<blockquote cite="mid:56D69365.4090303@redhat.com" type="cite">
<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
<div class="moz-cite-prefix">On 03/02/2016 12:02 PM, Sahina Bose
wrote:<br>
</div>
<blockquote cite="mid:56D68910.8040602@redhat.com" type="cite">
<meta content="text/html; charset=utf-8"
http-equiv="Content-Type">
<br>
<br>
<div class="moz-cite-prefix">On 03/02/2016 03:45 AM, Nir Soffer
wrote:<br>
</div>
<blockquote
cite="mid:CAMRbyyu9gwPfVpPxpDa4_gKWyXq1PavTm2V2rG2cU0AvE=JJPA@mail.gmail.com"
type="cite">
<div dir="ltr">On Tue, Mar 1, 2016 at 10:51 PM, <a
moz-do-not-send="true" class="moz-txt-link-abbreviated"
href="mailto:paf1@email.cz">paf1@email.cz</a> <<a
moz-do-not-send="true" class="moz-txt-link-abbreviated"
href="mailto:paf1@email.cz">paf1@email.cz</a>> wrote:<br>
><br>
> HI,<br>
> requested output:<br>
><br>
> # ls -lh
/rhev/data-center/mnt/glusterSD/localhost:*/*/dom_md<br>
> <br>
>
/rhev/data-center/mnt/glusterSD/localhost:_1KVM12-BCK/0fcad888-d573-47be-bef3-0bc0b7a99fb7/dom_md:<br>
> total 2,1M<br>
> -rw-rw---- 1 vdsm kvm 1,0M 1. bře 21.28 ids
<-- good<br>
> -rw-rw---- 1 vdsm kvm 16M 7. lis 22.16 inbox<br>
> -rw-rw---- 1 vdsm kvm 2,0M 7. lis 22.17 leases<br>
> -rw-r--r-- 1 vdsm kvm 335 7. lis 22.17 metadata<br>
> -rw-rw---- 1 vdsm kvm 16M 7. lis 22.16 outbox<br>
><br>
>
/rhev/data-center/mnt/glusterSD/localhost:_1KVM12-P1/553d9b92-e4a0-4042-a579-4cabeb55ded4/dom_md:<br>
> total 1,1M<br>
> -rw-r--r-- 1 vdsm kvm 0 24. úno 07.41 ids
<-- bad (sanlock cannot write, other can read)<br>
> -rw-rw---- 1 vdsm kvm 16M 7. lis 00.14 inbox<br>
> -rw-rw---- 1 vdsm kvm 2,0M 7. lis 03.56 leases<br>
> -rw-r--r-- 1 vdsm kvm 333 7. lis 03.56 metadata<br>
> -rw-rw---- 1 vdsm kvm 16M 7. lis 00.14 outbox<br>
><br>
>
/rhev/data-center/mnt/glusterSD/localhost:_1KVM12-P2/88adbd49-62d6-45b1-9992-b04464a04112/dom_md:<br>
> total 1,1M<br>
> -rw-r--r-- 1 vdsm kvm 0 24. úno 07.43 ids
<-- bad (sanlock cannot write, other can read)<br>
> -rw-rw---- 1 vdsm kvm 16M 7. lis 00.15 inbox<br>
> -rw-rw---- 1 vdsm kvm 2,0M 7. lis 22.14 leases<br>
> -rw-r--r-- 1 vdsm kvm 333 7. lis 22.14 metadata<br>
> -rw-rw---- 1 vdsm kvm 16M 7. lis 00.15 outbox<br>
><br>
>
/rhev/data-center/mnt/glusterSD/localhost:_1KVM12-P3/3c34ad63-6c66-4e23-ab46-084f3d70b147/dom_md:<br>
> total 1,1M<br>
> -rw-r--r-- 1 vdsm kvm 0 24. úno 07.43 ids
<-- bad (sanlock cannot write, other can read)<br>
> -rw-rw---- 1 vdsm kvm 16M 23. úno 22.51 inbox<br>
> -rw-rw---- 1 vdsm kvm 2,0M 23. úno 23.12 leases<br>
> -rw-r--r-- 1 vdsm kvm 998 25. úno 00.35 metadata<br>
> -rw-rw---- 1 vdsm kvm 16M 7. lis 00.16 outbox<br>
><br>
>
/rhev/data-center/mnt/glusterSD/localhost:_1KVM12-P4/7f52b697-c199-4f58-89aa-102d44327124/dom_md:<br>
> total 1,1M<br>
> -rw-r--r-- 1 vdsm kvm 0 24. úno 07.44 ids
<-- bad (sanlock cannot write, other can read)<br>
> -rw-rw---- 1 vdsm kvm 16M 7. lis 00.17 inbox<br>
> -rw-rw---- 1 vdsm kvm 2,0M 7. lis 00.18 leases<br>
> -rw-r--r-- 1 vdsm kvm 333 7. lis 00.18 metadata<br>
> -rw-rw---- 1 vdsm kvm 16M 7. lis 00.17 outbox<br>
><br>
>
/rhev/data-center/mnt/glusterSD/localhost:_2KVM12-P1/42d710a9-b844-43dc-be41-77002d1cd553/dom_md:<br>
> total 1,1M<br>
> -rw-rw-r-- 1 vdsm kvm 0 24. úno 07.32 ids
<-- bad (other can read)<br>
> -rw-rw---- 1 vdsm kvm 16M 7. lis 22.18 inbox<br>
> -rw-rw---- 1 vdsm kvm 2,0M 7. lis 22.18 leases<br>
> -rw-r--r-- 1 vdsm kvm 333 7. lis 22.18 metadata<br>
> -rw-rw---- 1 vdsm kvm 16M 7. lis 22.18 outbox<br>
><br>
>
/rhev/data-center/mnt/glusterSD/localhost:_2KVM12-P2/ff71b47b-0f72-4528-9bfe-c3da888e47f0/dom_md:<br>
> total 3,0M<br>
> -rw-rw-r-- 1 vdsm kvm 1,0M 1. bře 21.28 ids
<-- bad (other can read)<br>
> -rw-rw---- 1 vdsm kvm 16M 25. úno 00.42 inbox <br>
> -rw-rw---- 1 vdsm kvm 2,0M 25. úno 00.44 leases<br>
> -rw-r--r-- 1 vdsm kvm 997 24. úno 02.46 metadata<br>
> -rw-rw---- 1 vdsm kvm 16M 25. úno 00.44 outbox<br>
><br>
>
/rhev/data-center/mnt/glusterSD/localhost:_2KVM12-P3/ef010d08-aed1-41c4-ba9a-e6d9bdecb4b4/dom_md:<br>
> total 2,1M<br>
> -rw-r--r-- 1 vdsm kvm 0 24. úno 07.34 ids
<-- bad (sanlock cannot write, other can read)<br>
> -rw-rw---- 1 vdsm kvm 16M 23. úno 22.35 inbox<br>
> -rw-rw---- 1 vdsm kvm 2,0M 23. úno 22.38 leases<br>
> -rw-r--r-- 1 vdsm kvm 1,1K 24. úno 19.07 metadata<br>
> -rw-rw---- 1 vdsm kvm 16M 23. úno 22.27 outbox<br>
><br>
>
/rhev/data-center/mnt/glusterSD/localhost:_2KVM12__P4/300e9ac8-3c2f-4703-9bb1-1df2130c7c97/dom_md:<br>
> total 3,0M<br>
> -rw-rw-r-- 1 vdsm kvm 1,0M 1. bře 21.28 ids
<-- bad (other can read)<br>
> -rw-rw-r-- 1 vdsm kvm 16M 6. lis 23.50 inbox
<-- bad (other can read)
<div>> -rw-rw-r-- 1 vdsm kvm 2,0M 6. lis 23.51 leases
<-- bad (other can read)<br>
> -rw-rw-r-- 1 vdsm kvm 734 7. lis 02.13 metadata
<-- bad (group can write, other can read)<br>
> -rw-rw-r-- 1 vdsm kvm 16M 6. lis 16.55 outbox
<-- bad (other can read)<br>
><br>
>
/rhev/data-center/mnt/glusterSD/localhost:_2KVM12-P5/1ca56b45-701e-4c22-9f59-3aebea4d8477/dom_md:<br>
> total 1,1M<br>
> -rw-rw-r-- 1 vdsm kvm 0 24. úno 07.35 ids
<-- bad (other can read)<br>
> -rw-rw-r-- 1 vdsm kvm 16M 24. úno 01.06 inbox<br>
> -rw-rw-r-- 1 vdsm kvm 2,0M 24. úno 02.44 leases<br>
> -rw-r--r-- 1 vdsm kvm 998 24. úno 19.07 metadata<br>
> -rw-rw-r-- 1 vdsm kvm 16M 7. lis 22.20 outbox<br>
<br>
<br>
It should look like this:<br>
<br>
-rw-rw----. 1 vdsm kvm 1.0M Mar 1 23:36 ids<br>
-rw-rw----. 1 vdsm kvm 2.0M Mar 1 23:35 leases<br>
-rw-r--r--. 1 vdsm kvm 353 Mar 1 23:35 metadata<br>
-rw-rw----. 1 vdsm kvm 16M Mar 1 23:34 outbox<br>
-rw-rw----. 1 vdsm kvm 16M Mar 1 23:34 inbox<br>
<br>
This explains the EACCES error.<br>
<br>
You can start by fixing the permissions manually, you can
do this online.<br>
<br>
> The ids files was generated by "touch" command after
deleting them due "sanlock locking hang" gluster crash
& reboot<br>
> I expected that they will be filled automaticaly
after gluster reboot ( the shadow copy from ".gluster "
directory was deleted & created empty too )<br>
<br>
I don't know about gluster shadow copy, I would not play
with gluster internals.</div>
<div>Adding Sahina for advice.<br>
</div>
</div>
</blockquote>
<br>
Did you generate the ids file on the mount point.<br>
<br>
Ravi, can you help here?<br>
<br>
</blockquote>
<br>
Okay, so what I understand from the output above is you have
different gluster volumes mounted and some of them have incorrect
permissions for the 'ids' file. The way to fix it is to do it from
the mount like Nir said.<br>
Why did you delete the file from the .glusterfs in the brick(s)?
Was there a gfid split brain? <br>
<br>
-Ravi<br>
<br>
<blockquote cite="mid:56D68910.8040602@redhat.com" type="cite">
<blockquote
cite="mid:CAMRbyyu9gwPfVpPxpDa4_gKWyXq1PavTm2V2rG2cU0AvE=JJPA@mail.gmail.com"
type="cite">
<div dir="ltr">
<div><br>
> OK, it looks that sanlock can't work with empty file
or rewrite them .<br>
> Am I right ??<br>
<br>
Yes, the files must be initialized before sanlock can use
them.<br>
<br>
You can initialize the file like this:<br>
<br>
sanlock direct init -s
<sd_uuid>:0:repair/<sd_uuid>/dom_md/ids:0<br>
<br>
Taken from <a moz-do-not-send="true"
href="http://lists.ovirt.org/pipermail/users/2016-February/038046.html">http://lists.ovirt.org/pipermail/users/2016-February/038046.html</a><br>
<br>
> The last point - about "ids" workaround - this is
offline version = VMs have to be moved out from for
continual running with maintenance volume mode<br>
> But this is not acceptable in current situation, so
the question again, is it safe to do it online ?? ( YES
/ NO )</div>
<div><br>
</div>
<div>The ids file is accessed only by sanlock. I guess that
you don't have a running</div>
<div>SPM on this DC, since sanlock fails to acquire a host
id, so you are pretty safe</div>
<div>to fix the permissions and initialize the ids files.</div>
<div><br>
</div>
<div>I would do this:</div>
<div><br>
</div>
<div>1. Stop engine, so it will not try to start vdsm</div>
<div>2. Stop vdsm on all hosts, so they do not try to
acquire a host id with sanlock</div>
<div> This does not affect running vms</div>
<div>3. Fix the permissions on the ids file, via glusterfs
mount</div>
<div>4. Initialize the ids files from one of the hosts, via
the glusterfs mount</div>
<div> This should fix the ids files on all replicas</div>
<div>5. Start vdsm on all hosts</div>
<div>6. Start engine</div>
<div><br>
</div>
<div>Engine will connect to all hosts, hosts will connect to
storage and try to acquire a host id.</div>
<div>Then Engine will start the SPM on one of the hosts, and
your DC should become up.</div>
<div><br>
</div>
<div>David, Sahina, can you confirm that this procedure is
safe?</div>
</div>
</blockquote>
<br>
Yes, correcting from the mount point should fix it on all
replicas<br>
<br>
<br>
<blockquote
cite="mid:CAMRbyyu9gwPfVpPxpDa4_gKWyXq1PavTm2V2rG2cU0AvE=JJPA@mail.gmail.com"
type="cite">
<div dir="ltr">
<div><br>
</div>
<div>Nir</div>
<div><br>
</div>
<div>><br>
> regs.<br>
> Pavel<br>
><br>
><br>
><br>
> On 1.3.2016 18:38, Nir Soffer wrote:<br>
><br>
> On Tue, Mar 1, 2016 at 5:07 PM, <a
moz-do-not-send="true" class="moz-txt-link-abbreviated"
href="mailto:paf1@email.cz">paf1@email.cz</a> <<a
moz-do-not-send="true" class="moz-txt-link-abbreviated"
href="mailto:paf1@email.cz">paf1@email.cz</a>> wrote:<br>
>><br>
>> Hello, can anybody explain this error no.13 (
open file ) in sanlock.log .<br>
><br>
><br>
> This is EACCES<br>
><br>
> Can you share the outoput of:<br>
><br>
> ls -lh
/rhev/data-center/mnt/<server>:<_path>/<sd_uuid>/dom_md<br>
> <br>
>><br>
>><br>
>> The size of "ids" file is zero (0)<br>
><br>
><br>
> This is how we create the ids file when initializing
it.<br>
><br>
> But then we use sanlock to initialize the ids file,
and it should be 1MiB after that.<br>
><br>
> Is this ids files created by vdsm, or one you created
yourself?<br>
> <br>
>><br>
>> 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<br>
>> 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<br>
>> 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<br>
>><br>
>> If the main problem is about zero file size, can
I regenerate this file online securely , with no VM
dependence ????<br>
><br>
><br>
> Yes, I think I already referred to the instructions
how to do that in a previous mail.<br>
><br>
>><br>
>><br>
>> dist = RHEL - 7 - 2.1511<br>
>> kernel = 3.10.0 - 327.10.1.el7.x86_64<br>
>> KVM = 2.3.0 - 29.1.el7<br>
>> libvirt = libvirt-1.2.17-13.el7_2.3<br>
>> vdsm = vdsm-4.16.30-0.el7<br>
>> GlusterFS = glusterfs-3.7.8-1.el7<br>
>><br>
>><br>
>> regs.<br>
>> Pavel<br>
>><br>
>> _______________________________________________<br>
>> Users mailing list<br>
>> <a moz-do-not-send="true"
href="mailto:Users@ovirt.org">Users@ovirt.org</a><br>
>> <a moz-do-not-send="true"
href="http://lists.ovirt.org/mailman/listinfo/users">http://lists.ovirt.org/mailman/listinfo/users</a><br>
>><br>
><br>
><br>
</div>
</div>
</blockquote>
<br>
<br>
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<br>
<br>
</blockquote>
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