On MDS nodes, by default only the first you add is active: The others joins the cluster as standby MDS daemons. When the active fails, then an standby MDS becomes active and continues with the work.
You can change this behaviour setting the max active mds option, but it still on testing and is not recommended for production enviorments. Greetings!! 2017-06-16 12:40 GMT+02:00 Stéphane Klein <[email protected]>: > Hi, > > I have installed mdss role with Ansible. > > Now, I have this: > > root@ceph-test-1:/home/vagrant# ceph fs ls > name: cephfs, metadata pool: cephfs_metadata, data pools: [cephfs_data ] > root@ceph-test-1:/home/vagrant# ceph mds stat > e5: 1/1/1 up {0=ceph-test-3=up:active}, 2 up:standby > root@ceph-test-1:/home/vagrant# ceph status > cluster 7ecb6ebd-2e7a-44c3-bf0d-ff8d193e03ac > health HEALTH_OK > monmap e1: 3 mons at {ceph-test-1=172.28.128.3: > 6789/0,ceph-test-2=172.28.128.4:6789/0,ceph-test-3=172.28.128.5:6789/0} > election epoch 10, quorum 0,1,2 ceph-test-1,ceph-test-2,ceph- > test-3 > fsmap e5: 1/1/1 up {0=ceph-test-3=up:active}, 2 up:standby > osdmap e14: 3 osds: 3 up, 3 in > flags sortbitwise,require_jewel_osds > pgmap v36: 164 pgs, 3 pools, 2068 bytes data, 20 objects > 102 MB used, 10652 MB / 10754 MB avail > 164 active+clean > > What is up:standby"? in > > # ceph mds stat > e5: 1/1/1 up {0=ceph-test-3=up:active}, 2 up:standby > > Best regards, > Stéphane > -- > Stéphane Klein <[email protected]> > blog: http://stephane-klein.info > cv : http://cv.stephane-klein.info > Twitter: http://twitter.com/klein_stephane > > _______________________________________________ > ceph-users mailing list > [email protected] > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > -- _________________________________________ Daniel Carrasco Marín Ingeniería para la Innovación i2TIC, S.L. Tlf: +34 911 12 32 84 Ext: 223 www.i2tic.com _________________________________________
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