Anything in dmesg? When you say restart, do you mean a physical
restart, or just restarting the daemon? If it takes a physical restart
and you're using intel NICs, it might be worth upgrading network
drivers. Old versions have some bugs that cause them to just drop traffic.
On 5/14/2014 9:06 PM, Craig Lewis wrote:
I have 4 OSDs that won't stay in the cluster. I restart them, they
join for a bit, then get kicked out because they stop responding to
pings from the other OSDs.
I don't know what the issue is. The disks look fine. SMART reports
no errors or reallocated sectors. iostat says the disks are nearly
idle when the OSD stops responding. dmesg says it's restarting the
process, but doesn't say anything else interesting. kern.log doesn't
say anything.
I'm out of ideas, and I'm ready to gamble.
So I have two ideas that might fix the issue. I can upgrade Emperor
to Firefly. Or I can upgrade Ubuntu 12.04 (kernel 3.5.0-49-generic)
to 14.04 (kernel 3.13.0-24-generic). If I upgrade to 14.04, I plan to
hold Ceph on Emperor for the time being.
My PG states:
1989 active+clean
17 active+remapped
12 down+peering
507 active+degraded
1 active+degraded+remapped+wait_backfill
28 stale+down+peering
2 active+recovering+degraded+remapped
1 down+remapped+peering
3 incomplete
If I upgrade to Firefly, am I going to make things worse?
Any opinions on which gamble is more likely to pay off?
I plan to do both upgrades, but I want to do them one at a time unless
necessary. I'm wondering which upgrade I should attempt first.
--
*Craig Lewis*
Senior Systems Engineer
Office +1.714.602.1309
Email cle...@centraldesktop.com <mailto:cle...@centraldesktop.com>
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