Re: [FORGED] Lost all Monitors in Nautilus Upgrade, best way forward?

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Thanks for all of the helpful suggestions. We’re back up and running. 

We successfully re-created the monitor, and re-imported the keys. 

With cro.it’s help, we turned on the OSD Daemons, and things came right relatively smoothly (a few inactive/incomplete pgs, and a few expected small things). 

It was confirmed that when all OSDs are down, the monitor most likely won’t show accurate information on osd up/down status— this huge discrepancy was one thing that gave me pause bringing the OSDs back up.

The root cause, according to them, was our having a mimic mds in the cluster (everything else was luminous) while upgrading to nautilus. This was a fairly sloppy mistake on our part, of course. Lessons learned. Fortunately we only had CephFS running as a proof of concept. It wasn’t in use, and could just be removed (rather than rebuilt). 

Incidentally, there are lot of different versions of the script around for rebuilding a mon from the osds, but they all had their issues and errors (for us). Here’s what worked for us (luminous/bluestore) in case it helps others:

!#/bin/bash
ms=/root/mon-store
db=/root/db
db_slow=/root/db.slow
mkdir $ms
hosts=“host1 host2 hos3"

# collect the cluster map from stopped OSDs
for host in $hosts; do
  ssh root@$host mkdir -p $ms
  ssh root@$host mkdir -p $db
  ssh root@$host mkdir -p $db_slow
  rsync -avz $ms/. root@$host:$ms
  rsync -avz $db/. root@$host:$db
  rsync -avz $db_slow/. root@$host:$db_slow
  rm -rf $ms
  ssh root@$host <<EOF
    for osd in /var/lib/ceph/osd/ceph-*; do
      ceph-objectstore-tool --data-path \$osd --no-mon-config --op update-mon-db --mon-store-path $ms
    done
EOF
  rsync -avz root@$host:$ms/. $ms
  rsync -avz root@$host:$db/. $db
  rsync -avz root@$host:$db_slow/. $db_slow
done

Cheers,
Sean


> On 19/02/2020, at 11:42 PM, Wido den Hollander <wido@xxxxxxxx> wrote:
> 
> 
> 
> On 2/19/20 10:11 AM, Paul Emmerich wrote:
>> On Wed, Feb 19, 2020 at 10:03 AM Wido den Hollander <wido@xxxxxxxx> wrote:
>>> 
>>> 
>>> 
>>> On 2/19/20 8:49 AM, Sean Matheny wrote:
>>>> Thanks,
>>>> 
>>>>> If the OSDs have a newer epoch of the OSDMap than the MON it won't work.
>>>> 
>>>> How can I verify this? (i.e the epoch of the monitor vs the epoch of the
>>>> osd(s))
>>>> 
>>> 
>>> Check the status of the OSDs:
>>> 
>>> $ ceph daemon osd.X status
>>> 
>>> This should tell the newest map it has.
>>> 
>>> Then check on the mons:
>>> 
>>> $ ceph osd dump|head -n 10
>> 
>> mons are offline
> 
> I think he said het got one MON back manually. His 'ceph -s' also show
> it :-)
> 
>> 
>>> Or using ceph-monstore-tool to see what the latest map is the MON has.
>> 
>> ceph-monstore-tool <mon-dir> dump-keys
>> 
>> Also useful:
>> 
>> ceph-monstore-tool <mon-dir> get osdmap
>> 
> 
> Indeed. My thought is that there is a mismatch in OSDMaps between the
> MONs and OSDs which is causing these problems.
> 
> Wido
> 
>> Paul
>> 
>>> 
>>> Wido
>>> 
>>>> Cheers,
>>>> Sean
>>>> 
>>>> 
>>>>> On 19/02/2020, at 7:25 PM, Wido den Hollander <wido@xxxxxxxx
>>>>> <mailto:wido@xxxxxxxx>> wrote:
>>>>> 
>>>>> 
>>>>> 
>>>>> On 2/19/20 5:45 AM, Sean Matheny wrote:
>>>>>> I wanted to add a specific question to the previous post, in the
>>>>>> hopes it’s easier to answer.
>>>>>> 
>>>>>> We have a Luminous monitor restored from the OSDs using
>>>>>> ceph-object-tool, which seems like the best chance of any success. We
>>>>>> followed this rough process:
>>>>>> 
>>>>>> https://tracker.ceph.com/issues/24419
>>>>>> 
>>>>>> The monitor has come up (as a single monitor cluster), but it’s
>>>>>> reporting wildly inaccurate info, such as the number of osds that are
>>>>>> down (157 but all 223 are down), and hosts (1, but all 14 are down).
>>>>>> 
>>>>> 
>>>>> Have you verified that the MON's database has the same epoch of the
>>>>> OSDMap (or newer) as all the other OSDs?
>>>>> 
>>>>> If the OSDs have a newer epoch of the OSDMap than the MON it won't work.
>>>>> 
>>>>>> The OSD Daemons are still off, but I’m not sure if starting them back
>>>>>> up with this monitor will make things worse. The fact that this mon
>>>>>> daemon can’t even see how many OSDs are correctly down makes me think
>>>>>> that nothing good will come from turning the OSDs back on.
>>>>>> 
>>>>>> Do I run risk of further corruption (i.e. on the Ceph side, not
>>>>>> client data as the cluster is paused) if I proceed and turn on the
>>>>>> osd daemons? Or is it worth a shot?
>>>>>> 
>>>>>> Are these Ceph health metrics commonly inaccurate until it can talk
>>>>>> to the daemons?
>>>>> 
>>>>> The PG stats will be inaccurate indeed and the number of OSDs can vary
>>>>> as long as they aren't able to peer with each other and the MONs.
>>>>> 
>>>>>> 
>>>>>> (Also other commands like `ceph osd tree` agree with the below `ceph
>>>>>> -s` so far)
>>>>>> 
>>>>>> Many thanks for any wisdom… I just don’t want to make things
>>>>>> (unnecessarily) much worse.
>>>>>> 
>>>>>> Cheers,
>>>>>> Sean
>>>>>> 
>>>>>> 
>>>>>> root@ntr-mon01:/var/log/ceph# ceph -s
>>>>>> cluster:
>>>>>>   id:     ababdd7f-1040-431b-962c-c45bea5424aa
>>>>>>   health: HEALTH_WARN
>>>>>>           pauserd,pausewr,noout,norecover,noscrub,nodeep-scrub
>>>>>> flag(s) set
>>>>>>           157 osds down
>>>>>>           1 host (15 osds) down
>>>>>>           Reduced data availability: 12225 pgs inactive, 885 pgs
>>>>>> down, 673 pgs peering
>>>>>>           Degraded data redundancy: 14829054/35961087 objects
>>>>>> degraded (41.236%), 2869 pgs degraded, 2995 pgs undersized  services:
>>>>>>   mon: 1 daemons, quorum ntr-mon01
>>>>>>   mgr: ntr-mon01(active)
>>>>>>   osd: 223 osds: 66 up, 223 in
>>>>>>        flags pauserd,pausewr,noout,norecover,noscrub,nodeep-scrub  data:
>>>>>>   pools:   14 pools, 15220 pgs
>>>>>>   objects: 10.58M objects, 40.1TiB
>>>>>>   usage:   43.0TiB used, 121TiB / 164TiB avail
>>>>>>   pgs:     70.085% pgs unknown
>>>>>>            10.237% pgs not active
>>>>>>            14829054/35961087 objects degraded (41.236%)
>>>>>>            10667 unknown
>>>>>>            2869  active+undersized+degraded
>>>>>>            885   down
>>>>>>            673   peering
>>>>>>            126   active+undersized
>>>>>> 
>>>>>> 
>>>>>> On 19/02/2020, at 10:18 AM, Sean Matheny <s.matheny@xxxxxxxxxxxxxx
>>>>>> <mailto:s.matheny@xxxxxxxxxxxxxx><mailto:s.matheny@xxxxxxxxxxxxxx>>
>>>>>> wrote:
>>>>>> 
>>>>>> Hi folks,
>>>>>> 
>>>>>> Our entire cluster is down at the moment.
>>>>>> 
>>>>>> We started upgrading from 12.2.13 to 14.2.7 with the monitors. The
>>>>>> first monitor we upgraded crashed. We reverted to luminous on this
>>>>>> one and tried another, and it was fine. We upgraded the rest, and
>>>>>> they all worked.
>>>>>> 
>>>>>> Then we upgraded the first one again, and after it became the leader,
>>>>>> it died. Then the second one became the leader, and it died. Then the
>>>>>> third became the leader, and it died, leaving mon 4 and 5 unable to
>>>>>> form a quorum.
>>>>>> 
>>>>>> We tried creating a single monitor cluster by editing the monmap of
>>>>>> mon05, and it died in the same way, just without the paxos
>>>>>> negotiation first.
>>>>>> 
>>>>>> We have tried to revert to a luminous (12.2.12) monitor backup taken
>>>>>> a few hours before the crash. The mon daemon will start, but is
>>>>>> flooded with blocked requests and unknown pgs after a while. For
>>>>>> better or worse we removed the “noout” flag and 144 of 232 OSDs are
>>>>>> now showing as down:
>>>>>> 
>>>>>> cluster:
>>>>>>  id:     ababdd7f-1040-431b-962c-c45bea5424aa
>>>>>>  health: HEALTH_ERR
>>>>>>          noout,nobackfill,norecover flag(s) set
>>>>>>          101 osds down
>>>>>>          9 hosts (143 osds) down
>>>>>>          1 auth entities have invalid capabilities
>>>>>>          Long heartbeat ping times on back interface seen, longest
>>>>>> is 15424.178 msec
>>>>>>          Long heartbeat ping times on front interface seen, longest
>>>>>> is 14763.145 msec
>>>>>>          Reduced data availability: 521 pgs inactive, 48 pgs stale
>>>>>>          274 slow requests are blocked > 32 sec
>>>>>>          88 stuck requests are blocked > 4096 sec
>>>>>>          1303 slow ops, oldest one blocked for 174 sec,
>>>>>> mon.ntr-mon01 has slow ops
>>>>>>          too many PGs per OSD (299 > max 250)  services:
>>>>>>  mon: 1 daemons, quorum ntr-mon01 (age 3m)
>>>>>>  mgr: ntr-mon01(active, since 30m)
>>>>>>  mds: cephfs:1 {0=akld2e18u42=up:active(laggy or crashed)}
>>>>>>  osd: 223 osds: 66 up, 167 in
>>>>>>       flags noout,nobackfill,norecover
>>>>>>  rgw: 2 daemons active (ntr-rgw01, ntr-rgw02)  data:
>>>>>>  pools:   14 pools, 15220 pgs
>>>>>>  objects: 35.26M objects, 134 TiB
>>>>>>  usage:   379 TiB used, 1014 TiB / 1.4 PiB avail
>>>>>>  pgs:     3.423% pgs unknown
>>>>>>           14651 active+clean
>>>>>>           521   unknown
>>>>>>           48    stale+active+clean  io:
>>>>>>  client:   20 KiB/s rd, 439 KiB/s wr, 7 op/s rd, 54 op/s wr
>>>>>> 
>>>>>> These luminous OSD daemons are not down, but are all in fact running.
>>>>>> They just have no comms with the monitor:
>>>>>> 
>>>>>> 2020-02-19 10:12:33.565680 7ff222e24700  1 osd.0 pg_epoch: 305104
>>>>>> pg[100.37as3( v 129516'2 (0'0,129516'2] local-lis/les=297268/297269
>>>>>> n=0 ec=129502/129502 lis/c 297268/297268 les/c/f 297269/297358/0
>>>>>> 297268/297268/161526) [41,192,216,0,160,117]p41(0) r=3 lpr=305101
>>>>>> crt=129516'2 lcod 0'0 unknown NOTIFY mbc={}] state<Start>:
>>>>>> transitioning to Stray
>>>>>> 2020-02-19 10:12:33.565861 7ff222e24700  1 osd.0 pg_epoch: 305104
>>>>>> pg[4.53c( v 305046'1933429 (304777'1931907,305046'1933429]
>>>>>> local-lis/les=298009/298010 n=7350 ec=768/768 lis/c 298009/298009
>>>>>> les/c/f 298010/298010/0 297268/298009/298009) [0,61,103] r=0
>>>>>> lpr=305101 crt=305046'1933429 lcod 0'0 mlcod 0'0 unknown mbc={}]
>>>>>> state<Start>: transitioning to Primary
>>>>>> 2020-02-19 10:12:33.566742 7ff222e24700  1 osd.0 pg_epoch: 305104
>>>>>> pg[100.des4( v 129516'1 (0'0,129516'1] local-lis/les=292010/292011
>>>>>> n=1 ec=129502/129502 lis/c 292010/292010 les/c/f 292011/292417/0
>>>>>> 292010/292010/280955) [149,62,209,187,0,98]p149(0) r=4 lpr=305072
>>>>>> crt=129516'1 lcod 0'0 unknown NOTIFY mbc={}] state<Start>:
>>>>>> transitioning to Stray
>>>>>> 2020-02-19 10:12:33.566896 7ff23ccd9e00  0 osd.0 305104 done with
>>>>>> init, starting boot process
>>>>>> 2020-02-19 10:12:33.566956 7ff23ccd9e00  1 osd.0 305104 start_boot
>>>>>> 
>>>>>> One oddity in our deployment is that there was a test mds instance,
>>>>>> and it is running mimic. I shut it down, as the monitor trace has an
>>>>>> MDS call in it, but the nautilus monitors still die the same way.
>>>>>> 
>>>>>> "mds": {
>>>>>>      "ceph version 13.2.8 (5579a94fafbc1f9cc913a0f5d362953a5d9c3ae0)
>>>>>> mimic (stable)": 1
>>>>>>  },
>>>>>> 
>>>>>> 
>>>>>> ...
>>>>>> -11> 2020-02-18 09:50:00.800 7fd164a1a700  5
>>>>>> mon.ntr-mon02@1(leader).paxos(paxos recovering c 85448935..85449502)
>>>>>> is_readable = 0 - now=2020-02-18 09:50:00.804429
>>>>>> lease_expire=0.000000 has v0 lc 85449502
>>>>>> -10> 2020-02-18 09:50:00.800 7fd164a1a700  5
>>>>>> mon.ntr-mon02@1(leader).paxos(paxos recovering c 85448935..85449502)
>>>>>> is_readable = 0 - now=2020-02-18 09:50:00.804446
>>>>>> lease_expire=0.000000 has v0 lc 85449502
>>>>>>  -9> 2020-02-18 09:50:00.800 7fd164a1a700  5
>>>>>> mon.ntr-mon02@1(leader).paxos(paxos recovering c 85448935..85449502)
>>>>>> is_readable = 0 - now=2020-02-18 09:50:00.804460
>>>>>> lease_expire=0.000000 has v0 lc 85449502
>>>>>>  -8> 2020-02-18 09:50:00.800 7fd164a1a700  4 set_mon_vals no
>>>>>> callback set
>>>>>>  -7> 2020-02-18 09:50:00.800 7fd164a1a700  4 mgrc handle_mgr_map Got
>>>>>> map version 2301191
>>>>>>  -6> 2020-02-18 09:50:00.804 7fd164a1a700  4 mgrc handle_mgr_map
>>>>>> Active mgr is now v1:10.31.88.17:6801/2924412
>>>>>>  -5> 2020-02-18 09:50:00.804 7fd164a1a700  0 log_channel(cluster)
>>>>>> log [DBG] : monmap e25: 5 mons at
>>>>>> {ntr-mon01=v1:10.31.88.14:6789/0,ntr-mon02=v1:10.31.88.15:6789/0,ntr-mon03=v1:10.31.88.16:6789/0,ntr-mon04=v1:10.31.88.17:6789/0,ntr-mon05=v1:10.31.88.18:6789/0}
>>>>>>  -4> 2020-02-18 09:50:00.804 7fd164a1a700 10 log_client _send_to_mon
>>>>>> log to self
>>>>>>  -3> 2020-02-18 09:50:00.804 7fd164a1a700 10 log_client  log_queue
>>>>>> is 3 last_log 3 sent 2 num 3 unsent 1 sending 1
>>>>>>  -2> 2020-02-18 09:50:00.804 7fd164a1a700 10 log_client  will send
>>>>>> 2020-02-18 09:50:00.806845 mon.ntr-mon02 (mon.1) 3 : cluster [DBG]
>>>>>> monmap e25: 5 mons at
>>>>>> {ntr-mon01=v1:10.31.88.14:6789/0,ntr-mon02=v1:10.31.88.15:6789/0,ntr-mon03=v1:10.31.88.16:6789/0,ntr-mon04=v1:10.31.88.17:6789/0,ntr-mon05=v1:10.31.88.18:6789/0}
>>>>>>  -1> 2020-02-18 09:50:00.804 7fd164a1a700  5
>>>>>> mon.ntr-mon02@1(leader).paxos(paxos active c 85448935..85449502)
>>>>>> is_readable = 1 - now=2020-02-18 09:50:00.806920
>>>>>> lease_expire=2020-02-18 09:50:05.804479 has v0 lc 85449502
>>>>>>   0> 2020-02-18 09:50:00.812 7fd164a1a700 -1 *** Caught signal
>>>>>> (Aborted) **
>>>>>> in thread 7fd164a1a700 thread_name:ms_dispatch
>>>>>> 
>>>>>> ceph version 14.2.7 (3d58626ebeec02d8385a4cefb92c6cbc3a45bfe8)
>>>>>> nautilus (stable)
>>>>>> 1: (()+0x11390) [0x7fd171e98390]
>>>>>> 2: (gsignal()+0x38) [0x7fd1715e5428]
>>>>>> 3: (abort()+0x16a) [0x7fd1715e702a]
>>>>>> 4: (__gnu_cxx::__verbose_terminate_handler()+0x135) [0x7fd173673bf5]
>>>>>> 5: (__cxxabiv1::__terminate(void (*)())+0x6) [0x7fd173667bd6]
>>>>>> 6: (()+0x8b6c21) [0x7fd173667c21]
>>>>>> 7: (()+0x8c2e34) [0x7fd173673e34]
>>>>>> 8: (std::__throw_out_of_range(char const*)+0x3f) [0x7fd17367f55f]
>>>>>> 9: (MDSMonitor::maybe_resize_cluster(FSMap&, int)+0xcf0) [0x79ae00]
>>>>>> 10: (MDSMonitor::tick()+0xc9) [0x79c669]
>>>>>> 11: (MDSMonitor::on_active()+0x28) [0x785e88]
>>>>>> 12: (PaxosService::_active()+0xdd) [0x6d4b2d]
>>>>>> 13: (Context::complete(int)+0x9) [0x600789]
>>>>>> 14: (void finish_contexts<std::__cxx11::list<Context*,
>>>>>> std::allocator<Context*> > >(CephContext*,
>>>>>> std::__cxx11::list<Context*, std::allocator<Context*> >&, int)+0xa8)
>>>>>> [0x6299a8]
>>>>>> 15: (Paxos::finish_round()+0x76) [0x6cb276]
>>>>>> 16: (Paxos::handle_last(boost::intrusive_ptr<MonOpRequest>)+0xbff)
>>>>>> [0x6cc47f]
>>>>>> 17: (Paxos::dispatch(boost::intrusive_ptr<MonOpRequest>)+0x24b)
>>>>>> [0x6ccf2b]
>>>>>> 18: (Monitor::dispatch_op(boost::intrusive_ptr<MonOpRequest>)+0x15c5)
>>>>>> [0x5fa6f5]
>>>>>> 19: (Monitor::_ms_dispatch(Message*)+0x4d2) [0x5fad42]
>>>>>> 20: (Monitor::ms_dispatch(Message*)+0x26) [0x62b046]
>>>>>> 21: (Dispatcher::ms_dispatch2(boost::intrusive_ptr<Message>
>>>>>> const&)+0x26) [0x6270b6]
>>>>>> 22: (DispatchQueue::entry()+0x1219) [0x7fd1732b7e59]
>>>>>> 23: (DispatchQueue::DispatchThread::entry()+0xd) [0x7fd17336836d]
>>>>>> 24: (()+0x76ba) [0x7fd171e8e6ba]
>>>>>> 25: (clone()+0x6d) [0x7fd1716b741d]
>>>>>> ...
>>>>>> 
>>>>>> Ceph versions output
>>>>>> 
>>>>>> {
>>>>>>  "mon": {
>>>>>>      "ceph version 12.2.13
>>>>>> (584a20eb0237c657dc0567da126be145106aa47e) luminous (stable)": 1,
>>>>>>      "ceph version 14.2.7 (3d58626ebeec02d8385a4cefb92c6cbc3a45bfe8)
>>>>>> nautilus (stable)": 4
>>>>>>  },
>>>>>>  "mgr": {
>>>>>>      "ceph version 12.2.12
>>>>>> (1436006594665279fe734b4c15d7e08c13ebd777) luminous (stable)": 1,
>>>>>>      "ceph version 12.2.13
>>>>>> (584a20eb0237c657dc0567da126be145106aa47e) luminous (stable)": 1,
>>>>>>      "ceph version 14.2.7 (3d58626ebeec02d8385a4cefb92c6cbc3a45bfe8)
>>>>>> nautilus (stable)": 2
>>>>>>  },
>>>>>>  "osd": {
>>>>>>      "ceph version 12.2.11
>>>>>> (26dc3775efc7bb286a1d6d66faee0ba30ea23eee) luminous (stable)": 175,
>>>>>>      "ceph version 12.2.12
>>>>>> (1436006594665279fe734b4c15d7e08c13ebd777) luminous (stable)": 32,
>>>>>>      "ceph version 12.2.13
>>>>>> (584a20eb0237c657dc0567da126be145106aa47e) luminous (stable)": 16
>>>>>>  },
>>>>>>  "mds": {
>>>>>>      "ceph version 13.2.8 (5579a94fafbc1f9cc913a0f5d362953a5d9c3ae0)
>>>>>> mimic (stable)": 1
>>>>>>  },
>>>>>>  "rgw": {
>>>>>>      "ceph version 12.2.12
>>>>>> (1436006594665279fe734b4c15d7e08c13ebd777) luminous (stable)": 2
>>>>>>  },
>>>>>>  "overall": {
>>>>>>      "ceph version 12.2.11
>>>>>> (26dc3775efc7bb286a1d6d66faee0ba30ea23eee) luminous (stable)": 175,
>>>>>>      "ceph version 12.2.12
>>>>>> (1436006594665279fe734b4c15d7e08c13ebd777) luminous (stable)": 35,
>>>>>>      "ceph version 12.2.13
>>>>>> (584a20eb0237c657dc0567da126be145106aa47e) luminous (stable)": 18,
>>>>>>      "ceph version 13.2.8 (5579a94fafbc1f9cc913a0f5d362953a5d9c3ae0)
>>>>>> mimic (stable)": 1,
>>>>>>      "ceph version 14.2.7 (3d58626ebeec02d8385a4cefb92c6cbc3a45bfe8)
>>>>>> nautilus (stable)": 6
>>>>>>  }
>>>>>> }
>>>>>> 
>>>>>> We’ve filed a bug report with the actions of the actual cascading
>>>>>> crash described above (when we upgraded mon01 and it became the leader):
>>>>>> https://tracker.ceph.com/issues/44185 (parts here copied from that
>>>>>> report)
>>>>>> 
>>>>>> Right now we’re not sure what the best path to some sort of recovery
>>>>>> would be. All OSD Daemons are still on Luminous, so AFAICT, we could
>>>>>> build the monitor db from the OSDs with
>>>>>> https://github.com/ceph/ceph/blob/luminous/doc/rados/troubleshooting/troubleshooting-mon.rst#recovery-using-osds
>>>>>> which describes using this script:
>>>>>> 
>>>>>> 
>>>>>> #!/bin/bash
>>>>>> hosts="ntr-sto01 ntr-sto02"
>>>>>> ms=/tmp/mon-store/
>>>>>> mkdir $ms
>>>>>> # collect the cluster map from OSDs
>>>>>> for host in $hosts; do
>>>>>> echo $host
>>>>>> rsync -avz $ms root@$host:$ms
>>>>>> rm -rf $ms
>>>>>> ssh root@$host <<EOF
>>>>>>  for osd in /var/lib/ceph/osd/ceph-*; do
>>>>>>    ceph-objectstore-tool --data-path \$osd --op update-mon-db
>>>>>> --mon-store-path $ms
>>>>>>  done
>>>>>> EOF
>>>>>> rsync -avz root@$host:$ms $ms
>>>>>> done
>>>>>> 
>>>>>> If this is our best idea to try, should we try the mon store from the
>>>>>> above script on a luminous or nautilus mon daemon? Any other ideas to
>>>>>> try at this dark hour? : \
>>>>>> 
>>>>>> Cheers,
>>>>>> Sean
>>>>>> _______________________________________________
>>>>>> ceph-users mailing list -- ceph-users@xxxxxxx
>>>>>> <mailto:ceph-users@xxxxxxx><mailto:ceph-users@xxxxxxx>
>>>>>> To unsubscribe send an email to ceph-users-leave@xxxxxxx
>>>>>> <mailto:ceph-users-leave@xxxxxxx><mailto:ceph-users-leave@xxxxxxx>
>>>>>> 
>>>>>> _______________________________________________
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>>>>>> To unsubscribe send an email to ceph-users-leave@xxxxxxx
>>>>>> <mailto:ceph-users-leave@xxxxxxx>
>>>> 
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