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Hi Vlad, I am curious if those OSDs are flapping all at once? If a single host is affected I would consider the network connectivity (bottlenecks and misconfigured bonds can generate strange situations),
storage controller and firmware. Cheers, Maxime From:
ceph-users <ceph-users-bounces@xxxxxxxxxxxxxx> on behalf of Vlad Blando <vblando@xxxxxxxxxxxxx> Hi, One of my ceph nodes have flapping OSDs, network between nodes are fine, it's on a 10GBase-T network. I don't see anything wrong with the network, but these OSDs are going up/down. [root@avatar0-ceph4 ~]# ceph osd tree # id weight type name up/down reweight -1 174.7 root default -2 29.12 host avatar0-ceph2 16 3.64 osd.16 up 1 17 3.64 osd.17 up 1 18 3.64 osd.18 up 1 19 3.64 osd.19 up 1 20 3.64 osd.20 up 1 21 3.64 osd.21 up 1 22 3.64 osd.22 up 1 23 3.64 osd.23 up 1 -3 29.12 host avatar0-ceph0 0 3.64 osd.0 up 1 1 3.64 osd.1 up 1 2 3.64 osd.2 up 1 3 3.64 osd.3 up 1 4 3.64 osd.4 up 1 5 3.64 osd.5 up 1 6 3.64 osd.6 up 1 7 3.64 osd.7 up 1 -4 29.12 host avatar0-ceph1 8 3.64 osd.8 up 1 9 3.64 osd.9 up 1 10 3.64 osd.10 up 1 11 3.64 osd.11 up 1 12 3.64 osd.12 up 1 13 3.64 osd.13 up 1 14 3.64 osd.14 up 1 15 3.64 osd.15 up 1 -5 29.12 host avatar0-ceph3 24 3.64 osd.24 up 1 25 3.64 osd.25 up 1 26 3.64 osd.26 up 1 27 3.64 osd.27 up 1 28 3.64 osd.28 up 1 29 3.64 osd.29 up 1 30 3.64 osd.30 up 1 31 3.64 osd.31 up 1 -6 29.12 host avatar0-ceph4 32 3.64 osd.32 up 1 33 3.64 osd.33 up 1 34 3.64 osd.34 up 1 35 3.64 osd.35 up 1 36 3.64 osd.36 up 1 37 3.64 osd.37 up 1 38 3.64 osd.38 up 1 39 3.64 osd.39 up 1 -7 29.12 host avatar0-ceph5 40 3.64 osd.40 up 1 41 3.64 osd.41 up 1 42 3.64 osd.42 up 1 43 3.64 osd.43 up 1 44 3.64 osd.44 up 1 45 3.64 osd.45 up 1 46 3.64 osd.46 up 1 47 3.64 osd.47 up 1 [root@avatar0-ceph4 ~]# Here is my ceph.conf --- [root@avatar0-ceph4 ~]# cat /etc/ceph/ceph.conf [global] fsid = 2f0d1928-2ee5-4731-a259-64c0dc16110a mon_initial_members = avatar0-ceph0, avatar0-ceph1, avatar0-ceph2 mon_host = 172.40.40.100,172.40.40.101,172.40.40.102 auth_cluster_required = cephx auth_service_required = cephx auth_client_required = cephx filestore_xattr_use_omap = true osd_pool_default_size = 2 osd_pool_default_min_size = 1 cluster_network =
172.50.50.0/24 public_network =
172.40.40.0/24 max_open_files = 131072 mon_clock_drift_allowed = .15 mon_clock_drift_warn_backoff = 30 mon_osd_down_out_interval = 300 mon_osd_report_timeout = 300 mon_osd_min_down_reporters = 3 [osd] filestore_merge_threshold = 40 filestore_split_multiple = 8 osd_op_threads = 8 osd_max_backfills = 1 osd_recovery_op_priority = 1 osd_recovery_max_active = 1 [client] rbd_cache = true rbd_cache_writethrough_until_flush = true --- Here's the log snippet on osd.34 --- 2017-04-02 22:26:10.371282 7f1064eab700 0 --
172.50.50.105:6816/117130897 >>
172.50.50.101:6808/190698 pipe(0x156a1b80 sd=124 :46536 s=2 pgs=966 cs=1 l=0 c=0x13ae19c0).fault with nothing to send, going to standby 2017-04-02 22:26:10.371360 7f106ed5c700 0 --
172.50.50.105:6816/117130897 >>
172.50.50.104:6822/181109 pipe(0x1018c2c0 sd=75 :34196 s=2 pgs=1022 cs=1 l=0 c=0x1098fa20).fault with nothing to send, going to standby 2017-04-02 22:26:10.371393 7f1067ad2700 0 --
172.50.50.105:6816/117130897 >>
172.50.50.103:6806/118813 pipe(0x166b5c80 sd=34 :34156 s=2 pgs=1041 cs=1 l=0 c=0x10c4bfa0).fault with nothing to send, going to standby 2017-04-02 22:26:10.371739 7f107137b700 0 --
172.50.50.105:6816/117130897 >>
172.50.50.103:6815/121286 pipe(0xd7eb8c0 sd=192 :43966 s=2 pgs=1042 cs=1 l=0 c=0x12eb7e40).fault with nothing to send, going to standby 2017-04-02 22:26:10.375016 7f1068ff7700 0 --
172.50.50.105:6816/117130897 >>
172.50.50.104:6812/183825 pipe(0x10f70c00 sd=61 :34442 s=2 pgs=1025 cs=1 l=0 c=0xb10be40).fault with nothing to send, going to standby 2017-04-02 22:26:10.375221 7f107157d700 0 --
172.50.50.105:6816/117130897 >>
172.50.50.102:6806/66401 pipe(0x10ba78c0 sd=191 :46312 s=2 pgs=988 cs=1 l=0 c=0x6f8c420).fault with nothing to send, going to standby 2017-04-02 22:26:11.041747 7f10885ab700 0 log_channel(default) log [WRN] : map e85725 wrongly marked me down 2017-04-02 22:26:16.427858 7f1062892700 0 --
172.50.50.105:6807/118130897 >>
172.50.50.105:6811/116133701 pipe(0xd4cb180 sd=257 :6807 s=0 pgs=0 cs=0 l=0 c=0x13ae07e0).accept connect_seq 0 vs existing 0 state connecting 2017-04-02 22:26:16.427897 7f1062993700 0 --
172.50.50.105:6807/118130897 >>
172.50.50.105:6811/116133701 pipe(0xfb50680 sd=76 :56374 s=4 pgs=0 cs=0 l=0 c=0x174255a0).connect got RESETSESSION but no longer connecting ---
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