luminous

Placement Groups with Ceph Luminous stay in activating state

Placement Groups with Ceph Luminous stay in activating state 1500 1001 Wido den Hollander

Placement Groups stuck in activating When migrating from FileStore with BlueStore with Ceph Luminuous you might run into the problem that certain Placement Groups stay stuck in the activating state. 44 activating+undersized+degraded+remapped PG Overdose This is a side-effect of the new PG overdose protection in Ceph Luminous. Too many PGs on your OSDs can cause…

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Quick overview of Ceph version running on OSDs

Quick overview of Ceph version running on OSDs 1500 1000 Wido den Hollander

When checking a Ceph cluster it’s useful to know which versions you OSDs in the cluster are running. There is a very simple on-line command to do this: ceph osd metadata|jq '.[].ceph_version'|sort|uniq -c Running this on a cluster which is currently being upgraded to Jewel to Luminous it shows: 10 "ceph version 10.2.6 (656b5b63ed7c43bd014bcafd81b001959d5f089f)" 1670…

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