Hello, I am having trouble setting up a cluster using Ceph Luminous (version 12.2.1) on Debian 9, kernel 4.9.51. I was able to create and configure the cluster successfully using Jewel, but I would prefer using the latest LTS version. Everything works until I run ceph-deploy mon create-initial, which terminates with the following output: [test-mon3][DEBUG ] connection detected need for sudo[test-mon3][DEBUG ] connected to host: test-mon3 [test-mon3][DEBUG ] detect platform information from remote host[test-mon3][DEBUG ] detect machine type[test-mon3][DEBUG ] find the location of an executable[test-mon3][INFO ] Running command: sudo ceph --cluster=ceph --admin-daemon /var/run/ceph/ceph-mon.test-mon3.asok mon_status[ceph_deploy.mon][WARNIN] mon.test-mon3 monitor is not yet in quorum, tries left: 5[ceph_deploy.mon][WARNIN] waiting 5 seconds before retrying[test-mon3][INFO ] Running command: sudo ceph --cluster=ceph --admin-daemon /var/run/ceph/ceph-mon.test-mon3.asok mon_status[ceph_deploy.mon][WARNIN] mon.test-mon3 monitor is not yet in quorum, tries left: 4[ceph_deploy.mon][WARNIN] waiting 10 seconds before retrying[test-mon3][INFO ] Running command: sudo ceph --cluster=ceph --admin-daemon /var/run/ceph/ceph-mon.test-mon3.asok mon_status[ceph_deploy.mon][WARNIN] mon.test-mon3 monitor is not yet in quorum, tries left: 3[ceph_deploy.mon][WARNIN] waiting 10 seconds before retrying[test-mon3][INFO ] Running command: sudo ceph --cluster=ceph --admin-daemon /var/run/ceph/ceph-mon.test-mon3.asok mon_status[ceph_deploy.mon][WARNIN] mon.test-mon3 monitor is not yet in quorum, tries left: 2[ceph_deploy.mon][WARNIN] waiting 15 seconds before retrying[test-mon3][INFO ] Running command: sudo ceph --cluster=ceph --admin-daemon /var/run/ceph/ceph-mon.test-mon3.asok mon_status[ceph_deploy.mon][WARNIN] mon.test-mon3 monitor is not yet in quorum, tries left: 1[ceph_deploy.mon][WARNIN] waiting 20 seconds before retrying[ceph_deploy.mon][ERROR ] Some monitors have still not reached quorum:[ceph_deploy.mon][ERROR ] test-mon1[ceph_deploy.mon][ERROR ] test-mon2[ceph_deploy.mon][ERROR ] test-mon3 This same setup (three initial monitors) worked correctly with Jewel. In fact, I ran into these same basic symptoms with Jewel until I used three monitors (with one or two monitors, create-initial always timed out before reaching quorum). I've been following the quick-start guides for Luminous, here: Storage Cluster Quick Start — Ceph Documentation I have already gone through the Pre-Flight Checklist. I am planning to use XFS, but haven't gotten that far in the checklist since create-initial is failing. Has anyone successfully set up a Luminous cluster on Debian 9? Are there any special considerations for Debian 9 that I need to be aware of (besides kernel version) to get a Luminous cluster to reach quorum? Thanks!
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