On 9/26/19 5:05 AM, zhanrzh_xt@xxxxxxxxxxxxxx wrote: > Thanks for your reply. > We don't maintain it frequently. > My confusion is whether the more monitor is more advantage for client(osd,rbdclient...) to get clustermap. > Do All clients comunicate with one monitor of the cluster at the mean time ? If not how client to decide to communicat with which monitor? > Clients talk with one monitor, but each client to a different Monitor. They select the Monitor they talk to randomly. Wido > From: Nathan Fish > Date: 2019-09-26 00:52 > To: 展荣臻（信泰） > CC: ceph-users > Subject: Re: how many monitor should to deploy in a 1000+ osd cluster > You don't need more mons to scale; but going to 5 mons would make the > cluster more robust, if it is cheap for you to do so. > If you assume that 1 mon rebooting for updates or maintenance is > routine, then 2/3 is vulnerable to one failure. 4/5 can survive an > unexpected additional failure while one is down for maintenance. > Considering your scale, this improvement in uptime might be worthwhile. > > On Wed, Sep 25, 2019 at 10:26 AM 展荣臻（信泰） <zhanrzh_xt@xxxxxxxxxxxxxx> wrote: >> >> >> hi all: >> I have a production cluster, and it had 24 hosts (528 osds,3mons) at a former. >> Now we want to add 36 hosts so the osd increase to 1320 . >> does the monitor need to increase?how many numbers of monitor node is recommended? >> Another question is which monitor does monclient commnuicate with? And how it decide? >> Any suggestions are welcome! >> _______________________________________________ >> ceph-users mailing list -- ceph-users@xxxxxxx >> To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx > _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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