Re: Random checksum errors (bluestore on Luminous)

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Can you open a ticket with exact version of your ceph cluster?

http://tracker.ceph.com

Thanks,

On Sun, Dec 10, 2017 at 10:34 PM, Martin Preuss <martin@xxxxxxxxxxxxx> wrote:
> Hi,
>
> I'm new to Ceph. I started a ceph cluster from scratch on DEbian 9,
> consisting of 3 hosts, each host has 3-4 OSDs (using 4TB hdds, currently
> totalling 10 hdds).
>
> Right from the start I always received random scrub errors telling me
> that some checksums didn't match the expected value, fixable with "ceph
> pg repair".
>
> I looked at the ceph-osd logfiles on each of the hosts and compared with
> the corresponding syslogs. I never found any hardware error, so there
> was no problem reading or writing a sector hardware-wise. Also there was
> never any other suspicious syslog entry around the time of checksum
> error reporting.
>
> When I looked at the checksum error entries I found that the reported
> bad checksum always was "0x6706be76".
>
> Could someone please tell me where to look further for the source of the
> problem?
>
> I appended an excerpt of the osd logs.
>
>
> Kind regards
> Martin
>
>
> --
> "Things are only impossible until they're not"
>
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>
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