[Ocfs2-users] Reservation conflicts

Tue Dec 14 12:51:25 PST 2010

The issue does repeat.

I looked through the vsphere 4.1, and the host logs and didn't see anything
weird that corresponds with these times.

What is a reservation conflict? Can this issue cause the nodes to see
different data?

Dec 14 07:37:52 mdcvmsmes02 kernel: [351952.113847] sd 1:0:0:0: reservation
conflict
Dec 14 07:37:52 mdcvmsmes02 kernel: [351952.113859] sd 1:0:0:0: [sdb]
Result: hostbyte=DID_OK driverbyte=DRIVER_OK,SUGGEST_OK
Dec 14 07:37:52 mdcvmsmes02 kernel: [351952.113868] end_request: I/O error,
dev sdb, sector 1735
Dec 14 07:37:52 mdcvmsmes02 kernel: [351952.114134]
(0,0):o2hb_bio_end_io:225 ERROR: IO Error -5
Dec 14 07:37:52 mdcvmsmes02 kernel: [351952.114379]
(1882,0):o2hb_do_disk_heartbeat:753 ERROR: status = -5
Dec 14 07:51:01 mdcvmsmes02 kernel: [352762.233764] sd 1:0:0:0: reservation
conflict
Dec 14 07:51:01 mdcvmsmes02 kernel: [352762.233775] sd 1:0:0:0: [sdb]
Result: hostbyte=DID_OK driverbyte=DRIVER_OK,SUGGEST_OK
Dec 14 07:51:01 mdcvmsmes02 kernel: [352762.233855] end_request: I/O error,
dev sdb, sector 1735
Dec 14 07:51:01 mdcvmsmes02 kernel: [352762.234112]
(0,0):o2hb_bio_end_io:225 ERROR: IO Error -5
Dec 14 07:51:01 mdcvmsmes02 kernel: [352762.234365]
(1882,0):o2hb_do_disk_heartbeat:753 ERROR: status = -5
Dec 14 07:51:01 mdcvmsmes02 kernel: [352762.234789] sd 1:0:0:0: reservation
conflict
Dec 14 07:51:01 mdcvmsmes02 kernel: [352762.234793] sd 1:0:0:0: [sdb]
Result: hostbyte=DID_OK driverbyte=DRIVER_OK,SUGGEST_OK
Dec 14 07:51:01 mdcvmsmes02 kernel: [352762.234796] end_request: I/O error,
dev sdb, sector 1735
Dec 14 07:51:01 mdcvmsmes02 kernel: [352762.235033]
(0,0):o2hb_bio_end_io:225 ERROR: IO Error -5
Dec 14 07:51:01 mdcvmsmes02 kernel: [352762.235273]
(1882,0):o2hb_do_disk_heartbeat:753 ERROR: status = -5
Dec 14 09:23:15 mdcvmsmes02 kernel: [358423.734356] sd 1:0:0:0: reservation
conflict
Dec 14 09:23:15 mdcvmsmes02 kernel: [358423.734366] sd 1:0:0:0: [sdb]
Result: hostbyte=DID_OK driverbyte=DRIVER_OK,SUGGEST_OK
Dec 14 09:23:15 mdcvmsmes02 kernel: [358423.734370] end_request: I/O error,
dev sdb, sector 1735
Dec 14 09:23:15 mdcvmsmes02 kernel: [358423.734620]
(0,0):o2hb_bio_end_io:225 ERROR: IO Error -5
Dec 14 09:23:15 mdcvmsmes02 kernel: [358423.734882]
(1882,0):o2hb_do_disk_heartbeat:753 ERROR: status = -5
Dec 14 10:25:27 mdcvmsmes02 kernel: [362254.184302] sd 1:0:0:0: reservation
conflict
Dec 14 10:25:27 mdcvmsmes02 kernel: [362254.184312] sd 1:0:0:0: [sdb]
Result: hostbyte=DID_OK driverbyte=DRIVER_OK,SUGGEST_OK
Dec 14 10:25:27 mdcvmsmes02 kernel: [362254.184316] end_request: I/O error,
dev sdb, sector 1735
Dec 14 10:25:27 mdcvmsmes02 kernel: [362254.184565]
(0,0):o2hb_bio_end_io:225 ERROR: IO Error -5
Dec 14 10:25:27 mdcvmsmes02 kernel: [362254.184809]
(1882,0):o2hb_do_disk_heartbeat:753 ERROR: status = -5
Dec 14 10:25:27 mdcvmsmes02 kernel: [362254.188045] sd 1:0:0:0: reservation
conflict
Dec 14 10:25:27 mdcvmsmes02 kernel: [362254.188045] sd 1:0:0:0: [sdb]
Result: hostbyte=DID_OK driverbyte=DRIVER_OK,SUGGEST_OK
Dec 14 10:25:27 mdcvmsmes02 kernel: [362254.188045] end_request: I/O error,
dev sdb, sector 1735
Dec 14 10:25:27 mdcvmsmes02 kernel: [362254.188045]
(0,0):o2hb_bio_end_io:225 ERROR: IO Error -5
Dec 14 10:25:27 mdcvmsmes02 kernel: [362254.188045]
(1882,0):o2hb_do_disk_heartbeat:753 ERROR: status = -5
Dec 14 10:33:08 mdcvmsmes02 kernel: [362727.621062] sd 1:0:0:0: reservation
conflict
Dec 14 10:33:08 mdcvmsmes02 kernel: [362727.621062] sd 1:0:0:0: [sdb]
Result: hostbyte=DID_OK driverbyte=DRIVER_OK,SUGGEST_OK
Dec 14 10:33:08 mdcvmsmes02 kernel: [362727.621062] end_request: I/O error,
dev sdb, sector 1735
Dec 14 10:33:08 mdcvmsmes02 kernel: [362727.621062]
(0,0):o2hb_bio_end_io:225 ERROR: IO Error -5
Dec 14 10:33:08 mdcvmsmes02 kernel: [362727.621062]
(1882,0):o2hb_do_disk_heartbeat:753 ERROR: status = -5
Dec 14 10:33:08 mdcvmsmes02 kernel: [362727.621062] sd 1:0:0:0: reservation
conflict
Dec 14 10:33:08 mdcvmsmes02 kernel: [362727.621062] sd 1:0:0:0: [sdb]
Result: hostbyte=DID_OK driverbyte=DRIVER_OK,SUGGEST_OK
Dec 14 10:33:08 mdcvmsmes02 kernel: [362727.621062] end_request: I/O error,
dev sdb, sector 1735
Dec 14 10:33:08 mdcvmsmes02 kernel: [362727.621062]
(0,0):o2hb_bio_end_io:225 ERROR: IO Error -5
Dec 14 10:33:08 mdcvmsmes02 kernel: [362727.621062]
(1882,0):o2hb_do_disk_heartbeat:753 ERROR: status = -5

On Tue, Dec 14, 2010 at 11:38 AM, Sunil Mushran <sunil.mushran at oracle.com>wrote:

>  sd 1:0:0:0: reservation conflict
>
> That's the cause of the error in the guest. You'll have to track the error
> to ESX's management domain. See the logs.
>
> Does this error come repeatedly? This error is only a problem for o2hb
> if it continues for the next 60 secs. Else it can be ignored.
>
>
> On 12/14/2010 07:20 AM, brad hancock wrote:
>
> The issue is starting to come up again. Both machines are logging the error
> a couple of minutes apart from each other.
>
> sd 1:0:0:0: reservation conflict
> Dec 13 16:40:07 mdcvmsmes01 kernel: [295051.378262] sd 1:0:0:0: [sdb]
> Result: hostbyte=DID_OK d
> Dec 13 16:40:07 mdcvmsmes01 kernel: [295051.378347] end_request: I/O error,
> dev sdb, sector 173
> Dec 13 16:40:07 mdcvmsmes01 kernel: [295051.378694]
> (0,1):o2hb_bio_end_io:225 ERROR: IO Error -
> Dec 13 16:40:07 mdcvmsmes01 kernel: [295051.379055]
> (1897,1):o2hb_do_disk_heartbeat:753 ERROR:
>
>  Should I open a bug report? Who with, VMware or Oracle?
>
>
>
> On Sun, Dec 12, 2010 at 9:25 AM, brad hancock <braddhancock at gmail.com>wrote:
>
>> Kevin,
>> I modified the VMFS virtual disk to Independent, and I haven't seen the
>> issue since the change Friday morning. I noticed this didn't work for you. I
>> will continue to watch it and let the list know. The issue I saw after
>> several weeks was the data was not in sync. Two nodes saw different data on
>> the same OCFS2 drive.
>>
>>  We have Vsphere 4.1, and HP EVA 3000 SAN.
>>
>>  Thanks,
>>
>>
>>
>> On Sat, Dec 11, 2010 at 10:41 AM, <kevin at utahsysadmin.com> wrote:
>>
>>> On Fri, 10 Dec 2010 06:26:06 -0800, ocfs2-users-request at oracle.comwrote:
>>> >
>>> > My setup has the SCSI controller set to Physical so the guest can be on
>>> > different hosts, but I do not have the disk setup as Independent. I am
>>> > going
>>> > to change that setting in VMware and see if it makes a difference.
>>> >
>>>  > > [2037805.922718] end_request: I/O error, dev sdb, sector 1735
>>> > > [2037805.922974] (0,0):o2hb_bio_end_io:225 ERROR: IO Error -5
>>> > > [2037805.923370] (27506,0):o2hb_do_disk_heartbeat:753 ERROR: status =
>>> -5
>>>
>>>  Brad,
>>>
>>> I have had the same issue for over a year on ESX 3.5 as well as on
>>> vSphere
>>> 4.0.  I have not tried yet on 4.1.  The error occurs when I put the
>>> shared
>>> disk on either SATA or FC LUNs on our SAN.  It also doesn't matter if the
>>> virtual machines are on the same physical host or not (with independent
>>> disks).  The only problem that has come from it is the occasional reboot
>>> of
>>> one of the VMs, which for me is tolerable.  I keep hoping to upgrade to a
>>> new SAN thinking that might fix it.  The vSphere 4.0 release IOPS
>>> capability is higher than the SAN (it's 5 years old) so I didn't think it
>>> was VMware's fault.  If you have fairly new hardware, maybe there is a
>>> real
>>> bug somewhere.  I don't get I/O errors in any of my other implementations
>>> on this SAN.  I sent a post like yours to the list when I first built it,
>>> but never opened a bug report with either OCFS or VMware.  If you create
>>> a
>>> bug report I could add information from my implementation as well.  (I
>>> actually have two of these setups and they both have the same errors.)
>>>
>>> Of course, if you find a solution, please post that as well.
>>>
>>> Thanks,
>>> Kevin
>>>
>>>
>>>
>>
>
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