Yes I looked at tcpdump on each of the OSDs and saw communications between all 3 OSDs before I sent my first question to this list. When I disabled selinux on the one offending server based on your feedback (typically we have this disabled on lab systems that are only on the lab net) the 10 pages in my test pool all went to 'active+clean' almost immediately. Unfortunately the 3 default pools still remain in the creating states and are not health_ok. The OSDs all stayed UP/IN after the selinux change for the rest of the day until I made the mistake of creating a RBD image on demo-pool and it's 10 'active+clean' pages. I created the rbd, but when I attempted to look at it with 'rbd info' the cluster went into an endless loop trying to read a placement group and loop that I left running overnight. This morning ceph-mon was crashed again. I'll probably start all over from scratch once again on Monday.
I deleted ceph-mds and got rid of the 'laggy' comments from 'ceph health'. The "official" online Ceph docs on that "coming soon" and most references I could find were pre firefly so it was a little trail and error to figure out to use the pool number and not it's name to get the removal to work. Same with 'ceph mds newfs' to get rid of 'laggy-ness' in the 'ceph health' output. [root@essperf3 Ceph]# ceph mds rm 0 mds.essperf3 mds gid 0 dne [root@essperf3 Ceph]# ceph health HEALTH_WARN 96 pgs incomplete; 96 pgs peering; 192 pgs stuck inactive; 192 pgs stuck unclean mds essperf3 is laggy [root@essperf3 Ceph]# ceph mds newfs 1 0 --yes-i-really-mean-it new fs with metadata pool 1 and data pool 0 [root@essperf3 Ceph]# ceph health HEALTH_WARN 96 pgs incomplete; 96 pgs peering; 192 pgs stuck inactive; 192 pgs stuck unclean [root@essperf3 Ceph]# From: Brian Rak [mailto:b...@gameservers.com] Sent: Friday, August 01, 2014 6:14 PM To: Bruce McFarland; ceph-users@lists.ceph.com Subject: Re: [ceph-users] Firefly OSDs stuck in creating state forever What happens if you remove nodown? I'd be interested to see what OSDs it thinks are down. My next thought would be tcpdump on the private interface. See if the OSDs are actually managing to connect to each other. For comparison, when I bring up a cluster of 3 OSDs it goes to HEALTH_OK nearly instantly (definitely under a minute!), so it's probably not just taking awhile. Does 'ceph osd dump' show the proper public and private IPs? On 8/1/2014 6:13 PM, Bruce McFarland wrote: MDS: I assumed that I'd need to bring up a ceph-mds for my cluster at initial bringup. We also intended to modify the CRUSH map such that it's pool is resident to SSD(s). It is one of the areas of the online docs there doesn't seem to be a lot of info on and I haven't spent a lot of time researching. I'll stop it. OSD connectivity: The connectivity is good for both 1GE and 10GE. I thought moving to 10GE with nothing else on that net might help with group placement etc and bring up the pages quicker. I've checked 'tcpdump' output on all boxes. Firewall: Thanks for that one - it's the "basic" I over looked in my ceph learning curve. One of the OSDs had selinux=enforcing - all others were disabled. Changing that box and the 10 pages in my demo-pool (kept page count very small for sanity) are now 'active+clean'. The pages for the default pools - data, metadata, rbd - are still stuck in creating+peering or creating+incomplete. I did have to use manually set 'osd pool default min size = 1' from it's default of 2 for these 3 pools to eliminate a bunch of warnings in the 'ceph health detail' output. I'm adding the [mon] setting you suggested below and stopping ceph-mds and bringing everything up now. [root@essperf3 Ceph]# ceph -s cluster 4b3ffe60-73f4-4512-b7da-b04e4775dd73 health HEALTH_WARN 96 pgs incomplete; 96 pgs peering; 192 pgs stuck inactive; 192 pgs stuck unclean; 28 requests are blocked > 32 sec; nodown,noscrub flag(s) set monmap e1: 1 mons at {essperf3=209.243.160.35:6789/0}, election epoch 1, quorum 0 essperf3 mdsmap e43: 1/1/1 up {0=essperf3=up:creating} osdmap e752: 3 osds: 3 up, 3 in flags nodown,noscrub pgmap v1483: 202 pgs, 4 pools, 0 bytes data, 0 objects 134 MB used, 1158 GB / 1158 GB avail 96 creating+peering 10 active+clean <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<!!!!!!!! 96 creating+incomplete [root@essperf3 Ceph]# From: Brian Rak [mailto:b...@gameservers.com] Sent: Friday, August 01, 2014 2:54 PM To: Bruce McFarland; ceph-users@lists.ceph.com<mailto:ceph-users@lists.ceph.com> Subject: Re: [ceph-users] Firefly OSDs stuck in creating state forever Why do you have a MDS active? I'd suggest getting rid of that at least until you have everything else working. I see you've set nodown on the OSDs, did you have problems with the OSDs flapping? Do the OSDs have broken connectivity between themselves? Do you have some kind of firewall interfering here? I've seen odd issues when the OSDs have broken private networking, you'll get one OSD marking all the other ones down. Adding this to my config helped: [mon] mon osd min down reporters = 2 On 8/1/2014 5:41 PM, Bruce McFarland wrote: Hello, I've run out of ideas and assume I've overlooked something very basic. I've created 2 ceph clusters in the last 2 weeks with different OSD HW and private network fabrics - 1GE and 10GE. I have never been able to get the OSDs to come up to the 'active+clean' state. I have followed your online documentation and at this point the only thing I don't think I've done is modifying the CRUSH map (although I have been looking into that). These are new clusters with no data and only 1 HDD and 1 SSD per OSD (24 2.5Ghz cores with 64GB RAM). Since the disks are being recycled is there something I need to flag to let ceph just create it's mappings, but not scrub for data compatibility? I've tried setting the noscrub flag to no effect. I also have constant OSD flapping. I've set nodown, but assume that is just masking a problem that still occurring. Besides the lack of ever reaching 'active+clean' state ceph-mon always crashes after leaving it running overnight. The OSDs all eventually fill /root with with ceph logs so I regularly have to bring everything down Delete logs and restart. I have all sorts of output from the ceph.conf; osd boot ouput with 'debug osd -= 20' and 'debug ms = 1'; ceph -w output; and pretty much all of the debug/monitoring suggestions from the online docs and 2 weeks of google searches from online references in blogs, mailing lists etc. [root@essperf3 Ceph]# ceph -v ceph version 0.80.1 (a38fe1169b6d2ac98b427334c12d7cf81f809b74) [root@essperf3 Ceph]# ceph -s cluster 4b3ffe60-73f4-4512-b7da-b04e4775dd73 health HEALTH_WARN 96 pgs incomplete; 106 pgs peering; 202 pgs stuck inactive; 202 pgs stuck unclean; nodown,noscrub flag(s) set monmap e1: 1 mons at {essperf3=209.243.160.35:6789/0}, election epoch 1, quorum 0 essperf3 mdsmap e43: 1/1/1 up {0=essperf3=up:creating} osdmap e752: 3 osds: 3 up, 3 in flags nodown,noscrub pgmap v1476: 202 pgs, 4 pools, 0 bytes data, 0 objects 134 MB used, 1158 GB / 1158 GB avail 106 creating+peering 96 creating+incomplete [root@essperf3 Ceph]# Suggestions? Thanks, Bruce _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com<mailto:ceph-users@lists.ceph.com> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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