Hi Kyle， Thank you very much for your explanation, I have triggered the relative pg to scrub, but the secondary replica which I remove manually isn't recovered, it only shows that instructing pg xx.xxx on osd.x to scrub. PS: I use the ceph-deploy to deploy the ceph cluster, and the ceph.conf is the default configuration. Thanks & Regards Li JiaMin -----邮件原件----- 发件人: Kyle Bader [mailto:kyle.bader@xxxxxxxxx] 发送时间: 2014年3月23日 10:05 收件人: ljm李嘉敏 抄送: ceph-users@xxxxxxxxxxxxxx 主题: Re: why object can't be recovered when delete one replica > I upload a file through swift API, then delete it in the “current” > directory in the secondary OSD manually, why the object can’t be recovered? > > If I delete it in the primary OSD, the object is deleted directly in > the pool .rgw.bucket and it can’t be recovered from the secondary OSD. > > Do anyone know this behavior? This is because the placement group containing that object likely needs to scrub (just a light scrub should do). The scrub will compare the two replicas, notice the replica is missing from the secondary and trigger recovery/backfill. Can you try scrubbing the placement group containing the removed object and let us know if it triggers recovery? -- Kyle _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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