On 01/22/2014 05:47 PM, alistair.whittle@xxxxxxxxxxxx wrote:
All, Having failed to successfully and new monitors using ceph-deploy, I tried the documented manual approach. The platform: OS: RHEL 6.4 Ceph: Emperor Ceph-deploy: 1.3.4-0 When following the procedure on an existing node in a working cluster that has an existing single monitor configured as part of the quick start procedure through ceph-deploy, I get the following error when running the following set of commands on a second node: *#sudo mkdir /var/lib/ceph/mon/ceph-ldtdsr000000559* *#ceph auth get mon. -o /home/ceph/tmp/monkey* *# ceph mon getmap -o /home/ceph/tmp/monmap* *# sudo ceph-mon -i ldtdsr000000559 --mkfs --monmap /home/ceph/tmp/monmap --keyring /home/ceph/tmp/monkey* ceph-mon: set fsid to 74fdf8eb-fa3a-47ea-afde-593894c86cac ceph-mon: created monfs at /var/lib/ceph/mon/ceph-ldtdsr000000559 for mon.ldtdsr000000559 *#* *ceph mon add ldtdsr000000559 10.123.4.72:6789* 2014-01-22 17:27:41.626839 7f388f5fe700 0 monclient: hunting for new mon And there it sits. Sat for many minutes with no further output. Eventually I had to kill the process manually. While this command was being run, and subsequently after killing the process, the remaining nodes are now timing out when running “ceph health” or “ceph status” commands. This tells me that the previous command has gotten stuck somewhere as has resulted in the remaining monitor not being available. Any ideas what is going on here?
You must start the monitor. The 'ceph' tool is waiting for the existing monitor to reply to the 'add' command, and the monitor will only reply to the command once it actually forms a quorum - which after adding the new monitor (thus making it a 2-monitor cluster) will actually need 2 monitors to be up and running.
So, bring your second monitor up. -Joao
Thanks Alistair _______________________________________________ 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 <http://www.barclays.com/emaildisclaimer>. For important disclosures, please see: www.barclays.com/salesandtradingdisclaimer <http://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@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
-- Joao Eduardo Luis Software Engineer | http://inktank.com | http://ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
