Hi Nathan Is that true?
The time it takes to reallocate the primary pg delivers “downtime” by design. right? Seen from a writing clients perspective Jesper Sent from myMail for iOS Friday, 29 November 2019, 06.24 +0100 from pen...@portsip.com <pen...@portsip.com>: >Hi Nathan, > >Thanks for the help. >My colleague will provide more details. > >BR >On Fri, Nov 29, 2019 at 12:57 PM Nathan Fish < lordci...@gmail.com > wrote: >>If correctly configured, your cluster should have zero downtime from a >>single OSD or node failure. What is your crush map? Are you using >>replica or EC? If your 'min_size' is not smaller than 'size', then you >>will lose availability. >> >>On Thu, Nov 28, 2019 at 10:50 PM Peng Bo < pen...@portsip.com > wrote: >>> >>> Hi all, >>> >>> We are working on use CEPH to build our HA system, the purpose is the >>> system should always provide service even a node of CEPH is down or OSD is >>> lost. >>> >>> Currently, as we practiced once a node/OSD is down, the CEPH cluster needs >>> to take about 40 seconds to sync data, our system can't provide service >>> during that. >>> >>> My questions: >>> >>> Does there have any way that we can reduce the data sync time? >>> How can we let the CEPH keeps available once a node/OSD is down? >>> >>> >>> BR >>> >>> -- >>> The modern Unified Communications provider >>> >>> https://www.portsip.com >>> _______________________________________________ >>> ceph-users mailing list >>> ceph-users@lists.ceph.com >>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > >-- >The modern Unified Communications provider > >https://www.portsip.com >_______________________________________________ >ceph-users mailing list >ceph-users@lists.ceph.com >http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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