Wolfgang, On Tue, Mar 12, 2013 at 2:18 AM, Wolfgang Hennerbichler <wolfgang.hennerbichler@xxxxxxxxxxxxxxxx> wrote: > Hi, > > I've a question on cluster-network documented here: > http://ceph.com/docs/master/rados/configuration/network-config-ref/ > > In the docs we learn for the cluster network directive: > The IP address and netmask of the cluster (back-side) network (e.g., > 10.20.30.41/24). Set in [global]. You may specify comma-delimited subnets. > > Two Questions on that: > 1) shouldn't that be a NETWORK instead of a single IP? Like 10.20.30.0/24? Yes. I've updated the docs accordingly. > 2) If I define this in the global section also with the public network > directive AFTER having all my productive OSD's up and running, will > something very bad happen when I restart OSD by OSD? I don't have to > change my network configuration, as I've already defined public and > cluster-ips, I just wasn't aware that this configuration existed. No. OSDs bind dynamically upon start-up. > I'm running 4 OSD's on this host, and I'm kind of confused by the port > numbers it picked (and why there are so many of them): > netstat -planet | egrep -E ':68.*LISTEN.*ceph-osd' | awk '{ print $4}' > 0.0.0.0:6821 > 0.0.0.0:6822 > 0.0.0.0:6823 > 10.1.91.11:6800 > 10.1.91.11:6801 > 10.1.91.11:6802 > 10.1.91.11:6803 > 10.1.91.11:6804 > 10.1.91.11:6805 > 0.0.0.0:6812 > 0.0.0.0:6815 > 0.0.0.0:6818 Each OSD can use three ports: 1. Communication between clients and monitors 2. Replicating data to other OSDs 3. Heartbeats. I've updated the docs accordingly. > Wolfgang > > > -- > DI (FH) Wolfgang Hennerbichler > Software Development > Unit Advanced Computing Technologies > RISC Software GmbH > A company of the Johannes Kepler University Linz > > IT-Center > Softwarepark 35 > 4232 Hagenberg > Austria > > Phone: +43 7236 3343 245 > Fax: +43 7236 3343 250 > wolfgang.hennerbichler@xxxxxxxxxxxxxxxx > http://www.risc-software.at > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com -- John Wilkins Senior Technical Writer Intank john.wilkins@xxxxxxxxxxx (415) 425-9599 _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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