It sounds like you tried to go from 1 monitor to 2 monitors, which is an unsupported configuration as far as I am aware. You must have either 1, or 3 or more monitors for a quorum to be possible.
More information is available here: http://ceph.com/docs/master/rados/operations/add-or-rm-mons/ On Wed, Oct 30, 2013 at 8:47 AM, <alistair.whit...@barclays.com> wrote: > Never mind, problem solved. Cluster is now healthy again. J**** > > ** ** > > Tried the recovery process again and managed to remove the hung monitor. > Not sure why it didn’t work last time, but hey.**** > > ** ** > > *From:* Karan Singh [mailto:ksi...@csc.fi] > *Sent:* Wednesday, October 30, 2013 2:49 PM > *To:* Whittle, Alistair: Investment Bank (LDN) > *Cc:* ceph-users@lists.ceph.com > *Subject:* Re: [ceph-users] Ceph monitor problems**** > > ** ** > > Hi AW**** > > ** ** > > Did you check on firewall ( iptables ) between the nodes. If this is a > test cluster disable iptables and try.**** > > ** ** > > Regards**** > > Karan Singh**** > > ** ** > ------------------------------ > > *From: *"alistair whittle" <alistair.whit...@barclays.com> > *To: *ceph-users@lists.ceph.com > *Sent: *Wednesday, 30 October, 2013 4:20:27 PM > *Subject: *[ceph-users] Ceph monitor problems**** > > ** ** > > All,**** > > **** > > My ceph cluster is failing to respond to calls for health status etc. It > simply hangs at each command and then tells me there is an error connecting > to the cluster. I assume that it is because I tried to add a second > monitor which seemed to hang during the “hunting” phase. I eventually had > to kill the tasks which I think resulted in my monmap becoming corrupt. I > have tried to access it from the only remaining working monitor, but have > not had much joy with that.**** > > **** > > I have also tried to follow the docs re removing monitors from unhealthy > clusters, but have as yet had no luck with getting the stable monmap > extracted....**** > > **** > > When I run any ceph command from the remaining monitor host I get the > following error:**** > > **** > > *2013-10-30 14:19:01.822660 7f16080f2700 -1 monclient(hunting): ERROR: > missing keyring, cannot use cephx for authentication***** > > *2013-10-30 14:19:01.822743 7f16080f2700 0 librados: client.admin > initialization error (2) No such file or directory***** > > *Error connecting to cluster: ObjectNotFound***** > > **** > > It’s the hunting part which implies that something is still stuck from > when I tried to add the second monitor.**** > > **** > > Any ideas on how I can fix the monmap so the remaining monitor can be used > again?**** > > **** > > Thanks.**** > > **** > > _______________________________________________**** > > This message is for information purposes only, it is not a recommendation, > advice, offer or solicitation to buy or sell a product or service nor an > official confirmation of any transaction. It is directed at persons who are > professionals and is not intended for retail customer use. Intended for > recipient only. This message is subject to the terms at: > www.barclays.com/emaildisclaimer.**** > > For important disclosures, please see: > www.barclays.com/salesandtradingdisclaimer regarding market commentary > from Barclays Sales and/or Trading, who are active market participants; and > in respect of Barclays Research, including disclosures relating to specific > issuers, please see http://publicresearch.barclays.com.**** > > _______________________________________________**** > > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com**** > > ** ** > > _______________________________________________ > > This message is for information purposes only, it is not a recommendation, > advice, offer or solicitation to buy or sell a product or service nor an > official confirmation of any transaction. It is directed at persons who are > professionals and is not intended for retail customer use. Intended for > recipient only. This message is subject to the terms at: > www.barclays.com/emaildisclaimer. > > For important disclosures, please see: > www.barclays.com/salesandtradingdisclaimer regarding market commentary > from Barclays Sales and/or Trading, who are active market participants; and > in respect of Barclays Research, including disclosures relating to specific > issuers, please see http://publicresearch.barclays.com. > > _______________________________________________ > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > >
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