From: Mark Nelson <mark.nelson@inktank.com>
To: Matthew Anderson <matthewa@base3.com.au>
Cc: 'Sage Weil' <sage@inktank.com>,
"ceph-devel@vger.kernel.org" <ceph-devel@vger.kernel.org>
Subject: Re: OSD's slow down to a crawl
Date: Wed, 09 Jan 2013 08:09:54 -0600 [thread overview]
Message-ID: <50ED7A32.3040907@inktank.com> (raw)
In-Reply-To: <38A500831D3DE24B90BD200D6C8701351BB27449@Exchange2010-2.corit.local>
On 01/09/2013 02:52 AM, Matthew Anderson wrote:
> Hi Sage,
>
> Sorry for the late follow up, I've been on a bit of a testing rampage and managed to somewhat sort the problem.
>
> Most of the problems appears to be from the 3.7.1 kernel. It seems to have a fairly big issue with its networking stack that was causing Ceph's network operations to hang. Moving back to a 3.6.8 kernel fixed this up. I don't know the full extent of the problem but it was reported on Phoronix briefly here - http://www.phoronix.com/scan.php?page=news_item&px=MTI2Nzc
>
> The second issue was BTRFS on both the 3.7 and 3.6.8 kernels. After running a long rados bench (10 minutes) on a fresh cluster it would often slow down significantly by going from 250MB/s down to a 50MB/s average. Latency also increased dramatically. Restarting the OSD's fixes the issue but after a while it slows right down again. In the end I re-formatted the cluster using XFS (and also EXT4 for benchmarks) and there wasn't a single issue. I had rados bench running for over 30 minutes from another machine and there wasn't a single issue.
Ah, too bad this is still happening. :( It's interesting though that
restarting the OSDs fixes it. That's not something I expected. Sounds
like I need to run some more tests again and see if I can get to the
bottom of it.
>
> At thisstage I need to start moving into production with XFS. My test cluster arrives in a few weeks so I should be able to come back to the BTRFS issue later on as it would be very handy to have compression working.
>
> Thanks again for your help
> -Matt
>
>
> -----Original Message-----
> From: Sage Weil [mailto:sage@inktank.com]
> Sent: Saturday, 22 December 2012 12:02 AM
> To: Matthew Anderson
> Cc: 'Mark Nelson'; ceph-devel@vger.kernel.org
> Subject: RE: OSD's slow down to a crawl
>
> On Fri, 21 Dec 2012, Matthew Anderson wrote:
>> Hi Sage,
>>
>> I've tried to reproduce the error again with logging on every OSD and
>> got the above. RADOS bench had stalled on a write request like the
>> last time and the attached log is the grep'd OSD log (# cat osd.25.log
>> | grep client.9501.0:744> freeze.log) . The OSD that stalled was 25,
>> pg map is below -
>>
>> # ceph pg map 6.5d83495b
>> osdmap e3775 pg 6.5d83495b (6.95b) -> up [25,31] acting [25,31]
>>
>> I hope that's what you were after, if not just let me know
>
> We're getting closer. The osd tried to send the reply. Can you reproduce with 'debug ms = 20' on the osds too, and on the client side do soemthing like
>
> rados --debug-ms 20 --debug-objecter 20 --log-file /tmp/foo ...
>
> Thanks!
> sage
>
>
>>
>> Thanks again
>> -Matt
>>
>>
>> -----Original Message-----
>> From: Sage Weil [mailto:sage@inktank.com]
>> Sent: Friday, 21 December 2012 1:14 AM
>> To: Matthew Anderson
>> Cc: 'Mark Nelson'; ceph-devel@vger.kernel.org
>> Subject: RE: OSD's slow down to a crawl
>>
>> On Thu, 20 Dec 2012, Matthew Anderson wrote:
>>> Hi Sage,
>>>
>>> Logs are attached. I took the osd logs from osd.24 as this is the
>>> first osd in my SSD pool I've been testing with previously.
>>>
>>> The 4MB bench I was able to reproduce the fault by restarting my rbd
>>> export which stalled after a few percent complete. When I ran the
>>> 4MB bench it stalled early on and never received a response back
>>> from the OSD and I terminated it after 60 seconds or so. I wasn't
>>> able to reproduce the fault using the 4kb io size. The 4kb log
>>> should show rados bench completing normally at a respectable speed of about 1MB/s.
>>
>> Let's drill into the hang.. up until that point things look okay.
>>
>> 2012-12-21 00:51:26.033622 7f6f3c042760 1 -- 172.16.0.13:0/1023886
>> --> 172.16.0.13:6813/22233 -- osd_op(client.9503.0:185
>> benchmark_data_KVM04_23886_object184 [write 0~4194304] 6.3ca4346e) v4
>> -- ?+0 0x171ea50 con 0x171a7e0
>>
>> Do you have a log for that OSD so we can see what happened there? It
>> may also be that the replicated write is hung. If you do
>>
>> ceph pg map 6.3ca4346e
>>
>> you can see all OSDs storing that PG. And/or you can grep for
>> client.9503.0:185 in 172.16.0.13:6813/22233's log and see whether the sub_op was sent.
>>
>> Thanks!
>> sage
>>
>>
>>>
>>> Thanks
>>> -Matt
>>>
>>> -----Original Message-----
>>> From: ceph-devel-owner@vger.kernel.org
>>> [mailto:ceph-devel-owner@vger.kernel.org] On Behalf Of Sage Weil
>>> Sent: Friday, 21 December 2012 12:30 AM
>>> To: Matthew Anderson
>>> Cc: 'Mark Nelson'; ceph-devel@vger.kernel.org
>>> Subject: RE: OSD's slow down to a crawl
>>>
>>> Can you do a similar test, but with full logging on?
>>>
>>> ceph tell osd.0 injectargs '--debug-ms 1 --debug-filestore 20
>>> --debug-osd
>>> 20 --debug-journal 20'
>>> rados -p ssd bench 30 write -b 4096 -t 1 --log-file /tmp/foo
>>> --debug-ms 1
>>>
>>> That will be a single IO in flight at a time and very easy to trace through the logs. If you can post the resulting log file (/tmp/foo and from osd.0), that would be awesome.
>>>
>>> Thanks!
>>> sage
>>>
>>>
>>>
>>> On Thu, 20 Dec 2012, Matthew Anderson wrote:
>>>
>>>> # rados bench 60 write -t 256 -p ssd Maintaining 256 concurrent
>>>> writes of 4194304 bytes for at least 60 seconds.
>>>> Object prefix: benchmark_data_KVM03_12985
>>>> sec Cur ops started finished avg MB/s cur MB/s last lat avg lat
>>>> 0 0 0 0 0 0 - 0
>>>> 1 45 45 0 0 0 - 0
>>>> 2 71 71 0 0 0 - 0
>>>> 3 90 90 0 0 0 - 0
>>>> 4 125 125 0 0 0 - 0
>>>> 5 136 136 0 0 0 - 0
>>>> 6 144 144 0 0 0 - 0
>>>> 7 175 175 0 0 0 - 0
>>>> 8 201 201 0 0 0 - 0
>>>> 9 217 217 0 0 0 - 0
>>>> 10 228 228 0 0 0 - 0
>>>> 11 251 251 0 0 0 - 0
>>>> 12 255 266 11 3.66581 3.66667 11.7027 11.6013
>>>> 13 255 271 16 4.92194 20 12.9795 11.9979
>>>> 14 255 291 36 10.2833 80 13.1795 12.6478
>>>> 15 255 301 46 12.2639 40 13.9424 12.9123
>>>> 16 255 303 48 11.9973 8 14.0277 12.9579
>>>> 17 255 321 66 15.526 72 15.1408 13.4616
>>>> 18 255 345 90 19.9956 96 15.5673 13.9937
>>>> 19 255 349 94 19.7851 16 15.707 14.0635
>>>> 2012-12-21 00:06:37.198982min lat: 11.4904 max lat: 16.4053 avg lat: 14.3121
>>>> sec Cur ops started finished avg MB/s cur MB/s last lat avg lat
>>>> 20 255 361 106 21.1953 48 16.4053 14.3121
>>>> 21 255 367 112 21.3285 24 17.4263 14.4795
>>>> 22 255 370 115 20.9043 12 17.3579 14.5544
>>>> 23 255 387 132 22.9513 68 18.3185 15.0867
>>>> 24 255 394 139 23.1614 28 18.2868 15.2504
>>>> 25 255 404 149 23.8346 40 18.741 15.5048
>>>> 26 255 410 155 23.8407 24 19.032 15.6358
>>>> 27 255 410 155 22.9577 0 - 15.6358
>>>> 28 255 410 155 22.1378 0 - 15.6358
>>>> 29 255 411 156 21.5124 1.33333 22.6927 15.6811
>>>> 30 255 431 176 23.4614 80 22.6577 16.4822
>>>> 31 255 447 192 24.7687 64 23.2345 17.0563
>>>> 32 255 464 209 26.1192 68 23.3788 17.5859
>>>> 33 255 485 230 27.8726 84 22.8924 18.1122
>>>> 34 255 497 242 28.4642 48 23.563 18.3693
>>>> 35 255 508 253 28.9078 44 23.0516 18.5935
>>>> 36 255 514 259 28.7713 24 24.4415 18.7278
>>>> 37 255 530 275 29.723 64 23.847 19.0424
>>>> 38 255 541 286 30.0985 44 24.5757 19.2427
>>>> 39 255 544 289 29.6344 12 24.6802 19.2984
>>>> 2012-12-21 00:06:57.203473min lat: 11.4904 max lat: 24.6802 avg lat: 19.2984
>>>> sec Cur ops started finished avg MB/s cur MB/s last lat avg lat
>>>> 40 255 544 289 28.8935 0 - 19.2984
>>>> 41 255 544 289 28.1888 0 - 19.2984
>>>> 42 255 544 289 27.5176 0 - 19.2984
>>>> 43 255 544 289 26.8776 0 - 19.2984
>>>> 44 255 544 289 26.2668 0 - 19.2984
>>>> 45 255 544 289 25.6831 0 - 19.2984
>>>> 46 255 544 289 25.1248 0 - 19.2984
>>>> 47 255 544 289 24.5902 0 - 19.2984
>>>> 48 255 544 289 24.0779 0 - 19.2984
>>>> 49 255 544 289 23.5865 0 - 19.2984
>>>> 50 255 544 289 23.1148 0 - 19.2984
>>>> 51 255 544 289 22.6616 0 - 19.2984
>>>> 52 255 544 289 22.2258 0 - 19.2984
>>>> 53 255 544 289 21.8065 0 - 19.2984
>>>> 54 255 544 289 21.4026 0 - 19.2984
>>>> 55 255 544 289 21.0135 0 - 19.2984
>>>> 56 255 544 289 20.6383 0 - 19.2984
>>>> 57 255 544 289 20.2762 0 - 19.2984
>>>> 58 255 544 289 19.9266 0 - 19.2984
>>>> 59 255 544 289 19.5889 0 - 19.2984
>>>> 2012-12-21 00:07:17.207782min lat: 11.4904 max lat: 24.6802 avg lat: 19.2984
>>>> sec Cur ops started finished avg MB/s cur MB/s last lat avg lat
>>>> 60 255 544 289 19.2624 0 - 19.2984
>>>> 61 255 544 289 18.9466 0 - 19.2984
>>>> 62 255 544 289 18.641 0 - 19.2984
>>>> 63 255 544 289 18.3452 0 - 19.2984
>>>> 64 255 544 289 18.0585 0 - 19.2984
>>>> 65 255 544 289 17.7807 0 - 19.2984
>>>> 66 255 544 289 17.5113 0 - 19.2984
>>>> 67 133 545 412 24.5916 17.5714 37.3574 27.4834
>>>> Total time run: 68.000740
>>>> Total writes made: 545
>>>> Write size: 4194304
>>>> Bandwidth (MB/sec): 32.058
>>>>
>>>> Stddev Bandwidth: 26.8837
>>>> Max bandwidth (MB/sec): 96
>>>> Min bandwidth (MB/sec): 0
>>>> Average Latency: 29.2801
>>>> Stddev Latency: 11.9768
>>>> Max latency: 52.6277
>>>> Min latency: 11.4904
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> ----Original Message-----
>>>> From: Mark Nelson [mailto:mark.nelson@inktank.com]
>>>> Sent: Thursday, 20 December 2012 11:59 PM
>>>> To: Matthew Anderson
>>>> Cc: ceph-devel@vger.kernel.org
>>>> Subject: Re: OSD's slow down to a crawl
>>>>
>>>> Out of curiosity, if you fire up a rados bench instance on one of the nodes with say, 256 concurrent writes, do any of the writes complete?
>>>>
>>>> Mark
>>>>
>>>> On 12/20/2012 09:51 AM, Matthew Anderson wrote:
>>>>> Hi Mark,
>>>>>
>>>>> Thanks for the quick reply. The log was 380MB in total so I just posted last 200 lines hoping that a trained eye might be able to spot something. I'm happy to put the file up on a web server if anyone wants to review it in full.
>>>>>
>>>>> It doesn't appear to be memory or CPU related. In it's hung state (both read and write are not responding at the moment, I have a VM hung trying to shutdown and an rbd stuck exporting ) all of the OSD's sit around 0.3% CPU usage, ~300MB of ram and no IO wait. The server has roughly 40GB RAM free and is easily 90% idle. Iotop shows no IO coming from any of the Ceph-OSD's.
>>>>>
>>>>> The admin socket showed no ops in flight but the performance dump, perhistoric ops and config are below. I did notice that the age of some of the ops was quite high considering things were actively trying to write to the cluster.
>>>>> # ceph --admin-daemon ./ceph-osd.24.asok perf dump
>>>>>
>>>>> {"filestore":{"journal_queue_max_ops":500,"journal_queue_ops":0,
>>>>> "j
>>>>> ou
>>>>> rn
>>>>> al_ops":20868,"journal_queue_max_bytes":104857600,"journal_queue
>>>>> _b
>>>>> yt
>>>>> es
>>>>> ":0,"journal_bytes":1710397238,"journal_latency":{"avgcount":20868,"
>>>>> su
>>>>> m":185.268022000},"journal_wr":13354,"journal_wr_bytes":{"avgcount":
>>>>> 13
>>>>> 354,"sum":1770647552},"op_queue_max_ops":500,"op_queue_ops":0,"ops":
>>>>> 20
>>>>> 868,"op_queue_max_bytes":104857600,"op_queue_bytes":0,"bytes":17
>>>>> 10
>>>>> 23
>>>>> 25
>>>>> 83,"apply_latency":{"avgcount":20868,"sum":508.896737000},"committing"
>>>>> :0,"commitcycle":339,"commitcycle_interval":{"avgcount":339,"sum":
>>>>> 17
>>>>> 08
>>>>> .284725000},"commitcycle_latency":{"avgcount":339,"sum":13.24185
>>>>> 00
>>>>> 00
>>>>> },
>>>>> "journal_full":0},"mutex-FileJournal::completions_lock":{"wait":{"
>>>>> av
>>>>> gc
>>>>> ount":0,"sum":0.000000000}},"mutex-FileJournal::finisher_lock":{"wait"
>>>>> :{"avgcount":0,"sum":0.000000000}},"mutex-FileJournal::write_lock"
>>>>> :{
>>>>> "w
>>>>> ait":{"avgcount":0,"sum":0.000000000}},"mutex-FileJournal::write
>>>>> q_
>>>>> lo
>>>>> ck
>>>>> ":{"wait":{"avgcount":0,"sum":0.000000000}},"mutex-JOS::ApplyManager::
>>>>> apply_lo
>>>> ck":{"wai
>>>> t":{"avgcount":0,"sum":0.000000000}},"mutex-JOS::ApplyManager::com
>>>> _l
>>>> oc
>>>> k":{"wait":{"avgcount":0,"sum":0.000000000}},"mutex-JOS::SubmitMan
>>>> ag
>>>> er
>>>> ::lock":{"wait":{"avgcount":0,"sum":0.000000000}},"osd":{"opq":0,"
>>>> op
>>>> _w
>>>> ip":0,"op":31753,"op_in_bytes":797806224,"op_out_bytes":1728414048,"
>>>> op
>>>> _latency":{"avgcount":31753,"sum":82.183373000},"op_r":24945,"op_r
>>>> _o
>>>> ut
>>>> _bytes":1728414048,"op_r_latency":{"avgcount":24945,"sum":16.83368
>>>> 90
>>>> 00
>>>> },"op_w":6808,"op_w_in_bytes":797806224,"op_w_rlat":{"avgcount":6808,"
>>>> sum":38.223006000},"op_w_latency":{"avgcount":6808,"sum":65.349684
>>>> 00
>>>> 0}
>>>> ,"op_rw":0,"op_rw_in_bytes":0,"op_rw_out_bytes":0,"op_rw_rlat":{"a
>>>> vg
>>>> co
>>>> unt":0,"sum":0.000000000},"op_rw_latency":{"avgcount":0,"sum":0.00
>>>> 00
>>>> 00
>>>> 000},"subop":5700,"subop_in_bytes":813224156,"subop_latency":{"avg
>>>> co
>>>> un
>>>> t":5700,"sum":26.877085000},"subop_w":0,"subop_w_in_bytes":813224156,"
>>>> subop_w_latency":{"avgcount":5700,"sum":26.877085000},"subop_pull":0,"
>>>> subop_pull_latency":{"avgcount":0,"sum":0.000000000},"subop_push":
>>>> 0,
>>>> "s
>>>> ubop_push_
>>>> in_bytes"
>>>> :0,"subop_push_latency":{"avgcount":0,"sum":0.000000000},"pull":0,
>>>> "p
>>>> us
>>>> h":0,"push_out_bytes":0,"push_in":0,"push_in_bytes":0,"recovery_ops"
>>>> :0
>>>> ,"loadavg":359,"buffer_bytes":0,"numpg":2486,"numpg_primary":1214,
>>>> "n
>>>> um
>>>> pg_replica":1272,"numpg_stray":0,"heartbeat_to_peers":4,"heartbeat
>>>> _f
>>>> ro
>>>> m_peers":0,"map_messages":44,"map_message_epochs":184,"map_message
>>>> _e
>>>> po
>>>> ch_dups":174},"throttle-filestore_bytes":{"val":0,"max":104857600,
>>>> "g
>>>> et
>>>> ":0,"get_sum":0,"get_or_fail_fail":0,"get_or_fail_success":0,"take":
>>>> 20
>>>> 868,"take_sum":1710397238,"put":13354,"put_sum":1710397238,"wait":{"
>>>> av
>>>> gcount":0,"sum":0.000000000}},"throttle-filestore_ops":{"val":0,"max":
>>>> 500,"get":0,"get_sum":0,"get_or_fail_fail":0,"get_or_fail_success":0,"
>>>> take":20868,"take_sum":20868,"put":13354,"put_sum":20868,"wait":{"
>>>> av
>>>> gc
>>>> ount":0,"sum":0.000000000}},"throttle-msgr_dispatch_throttler-client":
>>>> {"val":0,"max":104857600,"get":31657,"get_sum":795546573,"get_or_f
>>>> ai
>>>> l_
>>>> fail":0,"get_or_fail_success":0,"take":0,"take_sum":0,"put":31657,
>>>> "p
>>>> ut
>>>> _sum":7955
>>>> 46573,"wa
>>>> it":{"avgcount":0,"sum":0.000000000}},"throttle-msgr_dispatch_thro
>>>> tt
>>>> le
>>>> r-cluster":{"val":0,"max":104857600,"get":18913,"get_sum":82801129
>>>> 3,
>>>> "g
>>>> et_or_fail_fail":0,"get_or_fail_success":0,"take":0,"take_sum":0,"put"
>>>> :18913,"put_sum":828011293,"wait":{"avgcount":0,"sum":0.000000000}
>>>> },
>>>> "t
>>>> hrottle-msgr_dispatch_throttler-hbclient":{"val":0,"max":104857600,"
>>>> ge
>>>> t":4260,"get_sum":200220,"get_or_fail_fail":0,"get_or_fail_success":
>>>> 0,
>>>> "take":0,"take_sum":0,"put":4260,"put_sum":200220,"wait":{"avgcount"
>>>> :0
>>>> ,"sum":0.000000000}},"throttle-msgr_dispatch_throttler-hbserver":{
>>>> "v
>>>> al
>>>> ":0,"max":104857600,"get":4236,"get_sum":199092,"get_or_fail_fail":0,"
>>>> get_or_fail_success":0,"take":0,"take_sum":0,"put":4236,"put_sum":
>>>> 19
>>>> 90
>>>> 92,"wait":{"avgcount":0,"sum":0.000000000}},"throttle-osd_client_b
>>>> yt
>>>> es
>>>> ":{"val":0,"max":524288000,"get":31308,"get_sum":795353720,"get_or
>>>> _f
>>>> ai
>>>> l_fail":0,"get_or_fail_success":0,"take":0,"take_sum":0,"put":3767
>>>> 1, "p ut_sum":795353720,"wait":{"avgcount":0,"sum":0.000000000}}}
>>>>>
>>>>> # ceph --admin-daemon ./ceph-osd.24.asok dump_historic_ops
>>>>>
>>>>> { "description": "osd_op(client.7636.0:101498 rb.0.122c.6b8b4567.000000000357 [write 3600384~4096] 6.42463fe3)",
>>>>> "received_at": "2012-12-20 23:34:42.012131",
>>>>> "age": "75.428051",
>>>>> "duration": "0.009988",
>>>>> "flag_point": "waiting for sub ops",
>>>>> "client_info": { "client": "client.7636",
>>>>> "tid": 101498},
>>>>> "events": [
>>>>> { "time": "2012-12-20 23:34:42.012317",
>>>>> "event": "waiting_for_osdmap"},
>>>>> { "time": "2012-12-20 23:34:42.012425",
>>>>> "event": "reached_pg"},
>>>>> { "time": "2012-12-20 23:34:42.012678",
>>>>> "event": "started"},
>>>>> { "time": "2012-12-20 23:34:42.012720",
>>>>> "event": "started"},
>>>>> { "time": "2012-12-20 23:34:42.012815",
>>>>> "event": "sub_op_sent"},
>>>>> { "time": "2012-12-20 23:34:42.012958",
>>>>> "event": "commit_queued_for_journal_write"},
>>>>> { "time": "2012-12-20 23:34:42.013033",
>>>>> "event": "write_thread_in_journal_buffer"},
>>>>> { "time": "2012-12-20 23:34:42.013745",
>>>>> "event": "journaled_completion_queued"},
>>>>> { "time": "2012-12-20 23:34:42.013803",
>>>>> "event": "op_commit"},
>>>>> { "time": "2012-12-20 23:34:42.017414",
>>>>> "event": "sub_op_commit_rec"},
>>>>> { "time": "2012-12-20 23:34:42.022066",
>>>>> "event": "op_applied"},
>>>>> { "time": "2012-12-20 23:34:42.022119",
>>>>> "event": "done"}]},
>>>>> { "description": "osd_sub_op_reply(client.7636.0:101498 6.1fe3 42463fe3\/rb.0.122c.6b8b4567.000000000357\/head\/\/6 [] ondisk, result = 0)",
>>>>> "received_at": "2012-12-20 23:34:42.017048",
>>>>> "age": "75.423134",
>>>>> "duration": "0.000411",
>>>>> "flag_point": "started",
>>>>> "events": [
>>>>> { "time": "2012-12-20 23:34:42.017218",
>>>>> "event": "waiting_for_osdmap"},
>>>>> { "time": "2012-12-20 23:34:42.017363",
>>>>> "event": "reached_pg"},
>>>>> { "time": "2012-12-20 23:34:42.017401",
>>>>> "event": "started"},
>>>>> { "time": "2012-12-20 23:34:42.017459",
>>>>> "event": "done"}]},
>>>>> { "description": "osd_op(client.7636.0:101502 rb.0.122c.6b8b4567.000000000064 [write 1512448~61440] 6.a241e34d)",
>>>>> "received_at": "2012-12-20 23:34:49.851021",
>>>>> "age": "67.589161",
>>>>> "duration": "0.007114",
>>>>> "flag_point": "waiting for sub ops",
>>>>> "client_info": { "client": "client.7636",
>>>>> "tid": 101502},
>>>>> "events": [
>>>>> { "time": "2012-12-20 23:34:49.851276",
>>>>> "event": "waiting_for_osdmap"},
>>>>> { "time": "2012-12-20 23:34:49.851429",
>>>>> "event": "reached_pg"},
>>>>> { "time": "2012-12-20 23:34:49.851616",
>>>>> "event": "started"},
>>>>> { "time": "2012-12-20 23:34:49.851648",
>>>>> "event": "started"},
>>>>> { "time": "2012-12-20 23:34:49.851712",
>>>>> "event": "sub_op_sent"},
>>>>> { "time": "2012-12-20 23:34:49.851770",
>>>>> "event": "commit_queued_for_journal_write"},
>>>>> { "time": "2012-12-20 23:34:49.851915",
>>>>> "event": "write_thread_in_journal_buffer"},
>>>>> { "time": "2012-12-20 23:34:49.853956",
>>>>> "event": "journaled_completion_queued"},
>>>>> { "time": "2012-12-20 23:34:49.853992",
>>>>> "event": "op_commit"},
>>>>> { "time": "2012-12-20 23:34:49.857016",
>>>>> "event": "sub_op_commit_rec"},
>>>>> { "time": "2012-12-20 23:34:49.858077",
>>>>> "event": "op_applied"},
>>>>> { "time": "2012-12-20 23:34:49.858135",
>>>>> "event": "done"}]},
>>>>> { "description": "osd_sub_op_reply(client.7636.0:101502 6.234d a241e34d\/rb.0.122c.6b8b4567.000000000064\/head\/\/6 [] ondisk, result = 0)",
>>>>> "received_at": "2012-12-20 23:34:49.856762",
>>>>> "age": "67.583420",
>>>>> "duration": "0.000308",
>>>>> "flag_point": "started",
>>>>> "events": [
>>>>> { "time": "2012-12-20 23:34:49.856869",
>>>>> "event": "waiting_for_osdmap"},
>>>>> { "time": "2012-12-20 23:34:49.856969",
>>>>> "event": "reached_pg"},
>>>>> { "time": "2012-12-20 23:34:49.857001",
>>>>> "event": "started"},
>>>>> { "time": "2012-12-20 23:34:49.857070",
>>>>> "event": "done"}]},
>>>>> { "description": "osd_op(client.7636.0:101504 rb.0.122c.6b8b4567.00000000012c [write 1658880~2048] 6.92d2c38c)",
>>>>> "received_at": "2012-12-20 23:35:34.351518",
>>>>> "age": "23.088664",
>>>>> "duration": "0.009430",
>>>>> "flag_point": "waiting for sub ops",
>>>>> "client_info": { "client": "client.7636",
>>>>> "tid": 101504},
>>>>> "events": [
>>>>> { "time": "2012-12-20 23:35:34.351714",
>>>>> "event": "waiting_for_osdmap"},
>>>>> { "time": "2012-12-20 23:35:34.351811",
>>>>> "event": "reached_pg"},
>>>>> { "time": "2012-12-20 23:35:34.352030",
>>>>> "event": "started"},
>>>>> { "time": "2012-12-20 23:35:34.352071",
>>>>> "event": "started"},
>>>>> { "time": "2012-12-20 23:35:34.352146",
>>>>> "event": "sub_op_sent"},
>>>>> { "time": "2012-12-20 23:35:34.352213",
>>>>> "event": "commit_queued_for_journal_write"},
>>>>> { "time": "2012-12-20 23:35:34.352287",
>>>>> "event": "write_thread_in_journal_buffer"},
>>>>> { "time": "2012-12-20 23:35:34.355390",
>>>>> "event": "journaled_completion_queued"},
>>>>> { "time": "2012-12-20 23:35:34.355475",
>>>>> "event": "op_commit"},
>>>>> { "time": "2012-12-20 23:35:34.356661",
>>>>> "event": "sub_op_commit_rec"},
>>>>> { "time": "2012-12-20 23:35:34.360894",
>>>>> "event": "op_applied"},
>>>>> { "time": "2012-12-20 23:35:34.360948",
>>>>> "event": "done"}]},
>>>>> { "description": "osd_sub_op_reply(client.7636.0:101504 6.38c 92d2c38c\/rb.0.122c.6b8b4567.00000000012c\/head\/\/6 [] ondisk, result = 0)",
>>>>> "received_at": "2012-12-20 23:35:34.356286",
>>>>> "age": "23.083896",
>>>>> "duration": "0.000421",
>>>>> "flag_point": "started",
>>>>> "events": [
>>>>> { "time": "2012-12-20 23:35:34.356489",
>>>>> "event": "waiting_for_osdmap"},
>>>>> { "time": "2012-12-20 23:35:34.356598",
>>>>> "event": "reached_pg"},
>>>>> { "time": "2012-12-20 23:35:34.356640",
>>>>> "event": "started"},
>>>>> { "time": "2012-12-20 23:35:34.356707",
>>>>> "event": "done"}]},
>>>>> { "description": "osd_op(client.7636.0:101512 rb.0.122c.6b8b4567.000000000357 [write 3731456~4096] 6.42463fe3)",
>>>>> "received_at": "2012-12-20 23:35:42.133103",
>>>>> "age": "15.307079",
>>>>> "duration": "0.008357",
>>>>> "flag_point": "waiting for sub ops",
>>>>> "client_info": { "client": "client.7636",
>>>>> "tid": 101512},
>>>>> "events": [
>>>>> { "time": "2012-12-20 23:35:42.133315",
>>>>> "event": "waiting_for_osdmap"},
>>>>> { "time": "2012-12-20 23:35:42.133427",
>>>>> "event": "reached_pg"},
>>>>> { "time": "2012-12-20 23:35:42.133684",
>>>>> "event": "started"},
>>>>> { "time": "2012-12-20 23:35:42.133723",
>>>>> "event": "started"},
>>>>> { "time": "2012-12-20 23:35:42.133796",
>>>>> "event": "sub_op_sent"},
>>>>> { "time": "2012-12-20 23:35:42.133908",
>>>>> "event": "commit_queued_for_journal_write"},
>>>>> { "time": "2012-12-20 23:35:42.133995",
>>>>> "event": "write_thread_in_journal_buffer"},
>>>>> { "time": "2012-12-20 23:35:42.136965",
>>>>> "event": "journaled_completion_queued"},
>>>>> { "time": "2012-12-20 23:35:42.137025",
>>>>> "event": "op_commit"},
>>>>> { "time": "2012-12-20 23:35:42.138456",
>>>>> "event": "sub_op_commit_rec"},
>>>>> { "time": "2012-12-20 23:35:42.141408",
>>>>> "event": "op_applied"},
>>>>> { "time": "2012-12-20 23:35:42.141460",
>>>>> "event": "done"}]},
>>>>> { "description": "osd_sub_op_reply(client.7636.0:101512 6.1fe3 42463fe3\/rb.0.122c.6b8b4567.000000000357\/head\/\/6 [] ondisk, result = 0)",
>>>>> "received_at": "2012-12-20 23:35:42.138087",
>>>>> "age": "15.302095",
>>>>> "duration": "0.000410",
>>>>> "flag_point": "started",
>>>>> "events": [
>>>>> { "time": "2012-12-20 23:35:42.138248",
>>>>> "event": "waiting_for_osdmap"},
>>>>> { "time": "2012-12-20 23:35:42.138363",
>>>>> "event": "reached_pg"},
>>>>> { "time": "2012-12-20 23:35:42.138443",
>>>>> "event": "started"},
>>>>> { "time": "2012-12-20 23:35:42.138497",
>>>>> "event": "done"}]}]}
>>>>>
>>>>> # ceph --admin-daemon ./ceph-osd.24.asok config show { "name":
>>>>> "osd.24",
>>>>> "cluster": "ceph",
>>>>> "none": "0\/5",
>>>>> "lockdep": "0\/1",
>>>>> "context": "0\/1",
>>>>> "crush": "1\/1",
>>>>> "mds": "1\/5",
>>>>> "mds_balancer": "1\/5",
>>>>> "mds_locker": "1\/5",
>>>>> "mds_log": "1\/5",
>>>>> "mds_log_expire": "1\/5",
>>>>> "mds_migrator": "1\/5",
>>>>> "buffer": "0\/1",
>>>>> "timer": "0\/1",
>>>>> "filer": "0\/1",
>>>>> "striper": "0\/1",
>>>>> "objecter": "0\/1",
>>>>> "rados": "0\/5",
>>>>> "rbd": "0\/5",
>>>>> "journaler": "0\/5",
>>>>> "objectcacher": "0\/5",
>>>>> "client": "0\/5",
>>>>> "osd": "0\/5",
>>>>> "optracker": "0\/5",
>>>>> "objclass": "0\/5",
>>>>> "filestore": "1\/3",
>>>>> "journal": "1\/3",
>>>>> "ms": "0\/5",
>>>>> "mon": "1\/5",
>>>>> "monc": "0\/10",
>>>>> "paxos": "0\/5",
>>>>> "tp": "0\/5",
>>>>> "auth": "1\/5",
>>>>> "crypto": "1\/5",
>>>>> "finisher": "1\/1",
>>>>> "heartbeatmap": "1\/5",
>>>>> "perfcounter": "1\/5",
>>>>> "rgw": "1\/5",
>>>>> "hadoop": "1\/5",
>>>>> "javaclient": "1\/5",
>>>>> "asok": "1\/5",
>>>>> "throttle": "1\/1",
>>>>> "host": "KVM04",
>>>>> "fsid": "00000000-0000-0000-0000-000000000000",
>>>>> "public_addr": ":\/0",
>>>>> "cluster_addr": ":\/0",
>>>>> "public_network": "",
>>>>> "cluster_network": "",
>>>>> "num_client": "1",
>>>>> "monmap": "",
>>>>> "mon_host": "",
>>>>> "lockdep": "false",
>>>>> "admin_socket": "\/var\/run\/ceph\/ceph-osd.24.asok",
>>>>> "daemonize": "true",
>>>>> "pid_file": "\/var\/run\/ceph\/osd.24.pid",
>>>>> "chdir": "\/",
>>>>> "max_open_files": "0",
>>>>> "fatal_signal_handlers": "true",
>>>>> "log_file": "\/var\/log\/ceph\/osd.24.log",
>>>>> "log_max_new": "1000",
>>>>> "log_max_recent": "100000",
>>>>> "log_to_stderr": "false",
>>>>> "err_to_stderr": "true",
>>>>> "log_to_syslog": "false",
>>>>> "err_to_syslog": "false",
>>>>> "log_flush_on_exit": "true",
>>>>> "clog_to_monitors": "true",
>>>>> "clog_to_syslog": "false",
>>>>> "mon_cluster_log_to_syslog": "false",
>>>>> "mon_cluster_log_file": "\/var\/log\/ceph\/ceph.log",
>>>>> "key": "",
>>>>> "keyfile": "",
>>>>> "keyring": "\/srv\/ceph\/osd\/osd.24\/keyring",
>>>>> "heartbeat_interval": "5",
>>>>> "heartbeat_file": "",
>>>>> "perf": "true",
>>>>> "ms_tcp_nodelay": "true",
>>>>> "ms_initial_backoff": "0.2",
>>>>> "ms_max_backoff": "15",
>>>>> "ms_nocrc": "false",
>>>>> "ms_die_on_bad_msg": "false",
>>>>> "ms_dispatch_throttle_bytes": "104857600",
>>>>> "ms_bind_ipv6": "false",
>>>>> "ms_bind_port_min": "6800",
>>>>> "ms_bind_port_max": "7100",
>>>>> "ms_rwthread_stack_bytes": "1048576",
>>>>> "ms_tcp_read_timeout": "900",
>>>>> "ms_inject_socket_failures": "0",
>>>>> "ms_inject_delay_type": "",
>>>>> "ms_inject_delay_max": "1",
>>>>> "ms_inject_delay_probability": "0",
>>>>> "mon_data": "\/var\/lib\/ceph\/mon\/ceph-24",
>>>>> "mon_initial_members": "",
>>>>> "mon_sync_fs_threshold": "5",
>>>>> "mon_tick_interval": "5",
>>>>> "mon_subscribe_interval": "300",
>>>>> "mon_osd_laggy_halflife": "3600",
>>>>> "mon_osd_laggy_weight": "0.3",
>>>>> "mon_osd_adjust_heartbeat_grace": "true",
>>>>> "mon_osd_adjust_down_out_interval": "true",
>>>>> "mon_osd_auto_mark_in": "false",
>>>>> "mon_osd_auto_mark_auto_out_in": "true",
>>>>> "mon_osd_auto_mark_new_in": "true",
>>>>> "mon_osd_down_out_interval": "300",
>>>>> "mon_osd_min_up_ratio": "0.3",
>>>>> "mon_osd_min_in_ratio": "0.3",
>>>>> "mon_lease": "5",
>>>>> "mon_lease_renew_interval": "3",
>>>>> "mon_lease_ack_timeout": "10",
>>>>> "mon_clock_drift_allowed": "0.05",
>>>>> "mon_clock_drift_warn_backoff": "5",
>>>>> "mon_accept_timeout": "10",
>>>>> "mon_pg_create_interval": "30",
>>>>> "mon_pg_stuck_threshold": "300",
>>>>> "mon_osd_full_ratio": "0.95",
>>>>> "mon_osd_nearfull_ratio": "0.85",
>>>>> "mon_globalid_prealloc": "100",
>>>>> "mon_osd_report_timeout": "900",
>>>>> "mon_force_standby_active": "true",
>>>>> "mon_min_osdmap_epochs": "500",
>>>>> "mon_max_pgmap_epochs": "500",
>>>>> "mon_max_log_epochs": "500",
>>>>> "mon_max_osd": "10000",
>>>>> "mon_probe_timeout": "2",
>>>>> "mon_slurp_timeout": "10",
>>>>> "mon_slurp_bytes": "262144",
>>>>> "mon_client_bytes": "104857600",
>>>>> "mon_daemon_bytes": "419430400",
>>>>> "mon_max_log_entries_per_event": "4096",
>>>>> "paxos_max_join_drift": "10",
>>>>> "paxos_propose_interval": "1",
>>>>> "paxos_min_wait": "0.05",
>>>>> "clock_offset": "0",
>>>>> "auth_cluster_required": "none",
>>>>> "auth_service_required": "none",
>>>>> "auth_client_required": "none",
>>>>> "auth_supported": "none",
>>>>> "cephx_require_signatures": "false",
>>>>> "cephx_sign_messages": "true",
>>>>> "auth_mon_ticket_ttl": "43200",
>>>>> "auth_service_ticket_ttl": "3600",
>>>>> "mon_client_hunt_interval": "3",
>>>>> "mon_client_ping_interval": "10",
>>>>> "mon_client_max_log_entries_per_message": "1000",
>>>>> "mon_max_pool_pg_num": "65536",
>>>>> "client_cache_size": "16384",
>>>>> "client_cache_mid": "0.75",
>>>>> "client_use_random_mds": "false",
>>>>> "client_mount_timeout": "30",
>>>>> "client_tick_interval": "1",
>>>>> "client_trace": "",
>>>>> "client_readahead_min": "131072",
>>>>> "client_readahead_max_bytes": "0",
>>>>> "client_readahead_max_periods": "4",
>>>>> "client_snapdir": ".snap",
>>>>> "client_mountpoint": "\/",
>>>>> "client_notify_timeout": "10",
>>>>> "client_caps_release_delay": "5",
>>>>> "client_oc": "true",
>>>>> "client_oc_size": "209715200",
>>>>> "client_oc_max_dirty": "104857600",
>>>>> "client_oc_target_dirty": "8388608",
>>>>> "client_oc_max_dirty_age": "5",
>>>>> "client_oc_max_objects": "1000",
>>>>> "client_debug_force_sync_read": "false",
>>>>> "client_debug_inject_tick_delay": "0",
>>>>> "fuse_use_invalidate_cb": "false",
>>>>> "fuse_big_writes": "true",
>>>>> "fuse_debug": "false",
>>>>> "objecter_tick_interval": "5",
>>>>> "objecter_timeout": "10",
>>>>> "objecter_inflight_op_bytes": "104857600",
>>>>> "objecter_inflight_ops": "1024",
>>>>> "journaler_allow_split_entries": "true",
>>>>> "journaler_write_head_interval": "15",
>>>>> "journaler_prefetch_periods": "10",
>>>>> "journaler_prezero_periods": "5",
>>>>> "journaler_batch_interval": "0.001",
>>>>> "journaler_batch_max": "0",
>>>>> "mds_data": "\/var\/lib\/ceph\/mds\/ceph-24",
>>>>> "mds_max_file_size": "1099511627776",
>>>>> "mds_cache_size": "100000",
>>>>> "mds_cache_mid": "0.7",
>>>>> "mds_mem_max": "1048576",
>>>>> "mds_dir_commit_ratio": "0.5",
>>>>> "mds_dir_max_commit_size": "90",
>>>>> "mds_decay_halflife": "5",
>>>>> "mds_beacon_interval": "4",
>>>>> "mds_beacon_grace": "15",
>>>>> "mds_blacklist_interval": "1440",
>>>>> "mds_session_timeout": "60",
>>>>> "mds_session_autoclose": "300",
>>>>> "mds_reconnect_timeout": "45",
>>>>> "mds_tick_interval": "5",
>>>>> "mds_dirstat_min_interval": "1",
>>>>> "mds_scatter_nudge_interval": "5",
>>>>> "mds_client_prealloc_inos": "1000",
>>>>> "mds_early_reply": "true",
>>>>> "mds_use_tmap": "true",
>>>>> "mds_default_dir_hash": "2",
>>>>> "mds_log": "true",
>>>>> "mds_log_skip_corrupt_events": "false",
>>>>> "mds_log_max_events": "-1",
>>>>> "mds_log_max_segments": "30",
>>>>> "mds_log_max_expiring": "20",
>>>>> "mds_bal_sample_interval": "3",
>>>>> "mds_bal_replicate_threshold": "8000",
>>>>> "mds_bal_unreplicate_threshold": "0",
>>>>> "mds_bal_frag": "false",
>>>>> "mds_bal_split_size": "10000",
>>>>> "mds_bal_split_rd": "25000",
>>>>> "mds_bal_split_wr": "10000",
>>>>> "mds_bal_split_bits": "3",
>>>>> "mds_bal_merge_size": "50",
>>>>> "mds_bal_merge_rd": "1000",
>>>>> "mds_bal_merge_wr": "1000",
>>>>> "mds_bal_interval": "10",
>>>>> "mds_bal_fragment_interval": "5",
>>>>> "mds_bal_idle_threshold": "0",
>>>>> "mds_bal_max": "-1",
>>>>> "mds_bal_max_until": "-1",
>>>>> "mds_bal_mode": "0",
>>>>> "mds_bal_min_rebalance": "0.1",
>>>>> "mds_bal_min_start": "0.2",
>>>>> "mds_bal_need_min": "0.8",
>>>>> "mds_bal_need_max": "1.2",
>>>>> "mds_bal_midchunk": "0.3",
>>>>> "mds_bal_minchunk": "0.001",
>>>>> "mds_bal_target_removal_min": "5",
>>>>> "mds_bal_target_removal_max": "10",
>>>>> "mds_replay_interval": "1",
>>>>> "mds_shutdown_check": "0",
>>>>> "mds_thrash_exports": "0",
>>>>> "mds_thrash_fragments": "0",
>>>>> "mds_dump_cache_on_map": "false",
>>>>> "mds_dump_cache_after_rejoin": "false",
>>>>> "mds_verify_scatter": "false",
>>>>> "mds_debug_scatterstat": "false",
>>>>> "mds_debug_frag": "false",
>>>>> "mds_debug_auth_pins": "false",
>>>>> "mds_debug_subtrees": "false",
>>>>> "mds_kill_mdstable_at": "0",
>>>>> "mds_kill_export_at": "0",
>>>>> "mds_kill_import_at": "0",
>>>>> "mds_kill_link_at": "0",
>>>>> "mds_kill_rename_at": "0",
>>>>> "mds_wipe_sessions": "false",
>>>>> "mds_wipe_ino_prealloc": "false",
>>>>> "mds_skip_ino": "0",
>>>>> "max_mds": "1",
>>>>> "mds_standby_for_name": "",
>>>>> "mds_standby_for_rank": "-1",
>>>>> "mds_standby_replay": "false",
>>>>> "osd_auto_upgrade_tmap": "true",
>>>>> "osd_tmapput_sets_uses_tmap": "false",
>>>>> "osd_max_backfills": "10",
>>>>> "osd_backfill_full_ratio": "0.85",
>>>>> "osd_backfill_retry_interval": "10",
>>>>> "osd_uuid": "00000000-0000-0000-0000-000000000000",
>>>>> "osd_data": "\/srv\/ceph\/osd\/osd.24",
>>>>> "osd_journal": "\/dev\/sda3",
>>>>> "osd_journal_size": "5120",
>>>>> "osd_max_write_size": "90",
>>>>> "osd_max_pgls": "1024",
>>>>> "osd_client_message_size_cap": "524288000",
>>>>> "osd_pg_bits": "6",
>>>>> "osd_pgp_bits": "6",
>>>>> "osd_min_rep": "1",
>>>>> "osd_max_rep": "10",
>>>>> "osd_pool_default_crush_rule": "0",
>>>>> "osd_pool_default_size": "2",
>>>>> "osd_pool_default_min_size": "0",
>>>>> "osd_pool_default_pg_num": "8",
>>>>> "osd_pool_default_pgp_num": "8",
>>>>> "osd_map_dedup": "true",
>>>>> "osd_map_cache_size": "500",
>>>>> "osd_map_message_max": "100",
>>>>> "osd_op_threads": "2",
>>>>> "osd_disk_threads": "1",
>>>>> "osd_recovery_threads": "1",
>>>>> "osd_recover_clone_overlap": "true",
>>>>> "osd_backfill_scan_min": "64",
>>>>> "osd_backfill_scan_max": "512",
>>>>> "osd_op_thread_timeout": "30",
>>>>> "osd_recovery_thread_timeout": "30",
>>>>> "osd_snap_trim_thread_timeout": "3600",
>>>>> "osd_scrub_thread_timeout": "60",
>>>>> "osd_scrub_finalize_thread_timeout": "600",
>>>>> "osd_remove_thread_timeout": "3600",
>>>>> "osd_command_thread_timeout": "600",
>>>>> "osd_age": "0.8",
>>>>> "osd_age_time": "0",
>>>>> "osd_heartbeat_addr": ":\/0",
>>>>> "osd_heartbeat_interval": "6",
>>>>> "osd_heartbeat_grace": "20",
>>>>> "osd_mon_heartbeat_interval": "30",
>>>>> "osd_mon_report_interval_max": "120",
>>>>> "osd_mon_report_interval_min": "5",
>>>>> "osd_mon_ack_timeout": "30",
>>>>> "osd_min_down_reporters": "1",
>>>>> "osd_min_down_reports": "3",
>>>>> "osd_default_data_pool_replay_window": "45",
>>>>> "osd_preserve_trimmed_log": "false",
>>>>> "osd_auto_mark_unfound_lost": "false",
>>>>> "osd_recovery_delay_start": "0",
>>>>> "osd_recovery_max_active": "50",
>>>>> "osd_recovery_max_chunk": "8388608",
>>>>> "osd_recovery_forget_lost_objects": "false",
>>>>> "osd_max_scrubs": "1",
>>>>> "osd_scrub_load_threshold": "0.5",
>>>>> "osd_scrub_min_interval": "300",
>>>>> "osd_scrub_max_interval": "86400",
>>>>> "osd_deep_scrub_interval": "604800",
>>>>> "osd_deep_scrub_stride": "524288",
>>>>> "osd_auto_weight": "false",
>>>>> "osd_class_dir": "\/usr\/local\/lib\/rados-classes",
>>>>> "osd_check_for_log_corruption": "false",
>>>>> "osd_use_stale_snap": "false",
>>>>> "osd_rollback_to_cluster_snap": "",
>>>>> "osd_default_notify_timeout": "30",
>>>>> "osd_kill_backfill_at": "0",
>>>>> "osd_min_pg_log_entries": "1000",
>>>>> "osd_op_complaint_time": "30",
>>>>> "osd_command_max_records": "256",
>>>>> "osd_op_log_threshold": "5",
>>>>> "osd_verify_sparse_read_holes": "false",
>>>>> "osd_debug_drop_ping_probability": "0",
>>>>> "osd_debug_drop_ping_duration": "0",
>>>>> "osd_debug_drop_pg_create_probability": "0",
>>>>> "osd_debug_drop_pg_create_duration": "1",
>>>>> "osd_debug_drop_op_probability": "0",
>>>>> "osd_op_history_size": "20",
>>>>> "osd_op_history_duration": "600",
>>>>> "osd_target_transaction_size": "300",
>>>>> "osd_client_op_priority": "63",
>>>>> "osd_recovery_op_priority": "10",
>>>>> "filestore": "false",
>>>>> "filestore_index_retry_probability": "0",
>>>>> "filestore_debug_omap_check": "false",
>>>>> "filestore_xattr_use_omap": "false",
>>>>> "filestore_max_inline_xattr_size": "512",
>>>>> "filestore_max_inline_xattrs": "2",
>>>>> "filestore_max_sync_interval": "5",
>>>>> "filestore_min_sync_interval": "0.01",
>>>>> "filestore_btrfs_snap": "true",
>>>>> "filestore_btrfs_clone_range": "true",
>>>>> "filestore_fsync_flushes_journal_data": "false",
>>>>> "filestore_fiemap": "false",
>>>>> "filestore_flusher": "true",
>>>>> "filestore_flusher_max_fds": "512",
>>>>> "filestore_flush_min": "65536",
>>>>> "filestore_sync_flush": "false",
>>>>> "filestore_journal_parallel": "false",
>>>>> "filestore_journal_writeahead": "false",
>>>>> "filestore_journal_trailing": "false",
>>>>> "filestore_queue_max_ops": "500",
>>>>> "filestore_queue_max_bytes": "104857600",
>>>>> "filestore_queue_committing_max_ops": "500",
>>>>> "filestore_queue_committing_max_bytes": "104857600",
>>>>> "filestore_op_threads": "2",
>>>>> "filestore_op_thread_timeout": "60",
>>>>> "filestore_op_thread_suicide_timeout": "180",
>>>>> "filestore_commit_timeout": "600",
>>>>> "filestore_fiemap_threshold": "4096",
>>>>> "filestore_merge_threshold": "10",
>>>>> "filestore_split_multiple": "2",
>>>>> "filestore_update_to": "1000",
>>>>> "filestore_blackhole": "false",
>>>>> "filestore_dump_file": "",
>>>>> "filestore_kill_at": "0",
>>>>> "filestore_fail_eio": "true",
>>>>> "journal_dio": "true",
>>>>> "journal_aio": "false",
>>>>> "journal_block_align": "true",
>>>>> "journal_max_write_bytes": "10485760",
>>>>> "journal_max_write_entries": "100",
>>>>> "journal_queue_max_ops": "500",
>>>>> "journal_queue_max_bytes": "104857600",
>>>>> "journal_align_min_size": "65536",
>>>>> "journal_replay_from": "0",
>>>>> "journal_zero_on_create": "false",
>>>>> "rbd_cache": "false",
>>>>> "rbd_cache_size": "33554432",
>>>>> "rbd_cache_max_dirty": "25165824",
>>>>> "rbd_cache_target_dirty": "16777216",
>>>>> "rbd_cache_max_dirty_age": "1",
>>>>> "nss_db_path": "",
>>>>> "rgw_data": "\/var\/lib\/ceph\/radosgw\/ceph-24",
>>>>> "rgw_enable_apis": "s3, swift, swift_auth, admin",
>>>>> "rgw_cache_enabled": "true",
>>>>> "rgw_cache_lru_size": "10000",
>>>>> "rgw_socket_path": "",
>>>>> "rgw_dns_name": "",
>>>>> "rgw_swift_url": "",
>>>>> "rgw_swift_url_prefix": "swift",
>>>>> "rgw_swift_auth_url": "",
>>>>> "rgw_swift_auth_entry": "auth",
>>>>> "rgw_keystone_url": "",
>>>>> "rgw_keystone_admin_token": "",
>>>>> "rgw_keystone_accepted_roles": "Member, admin",
>>>>> "rgw_keystone_token_cache_size": "10000",
>>>>> "rgw_keystone_revocation_interval": "900",
>>>>> "rgw_admin_entry": "admin",
>>>>> "rgw_enforce_swift_acls": "true",
>>>>> "rgw_swift_token_expiration": "86400",
>>>>> "rgw_print_continue": "true",
>>>>> "rgw_remote_addr_param": "REMOTE_ADDR",
>>>>> "rgw_op_thread_timeout": "600",
>>>>> "rgw_op_thread_suicide_timeout": "0",
>>>>> "rgw_thread_pool_size": "100",
>>>>> "rgw_num_control_oids": "8",
>>>>> "rgw_cluster_root_pool": ".rgw.root",
>>>>> "rgw_log_nonexistent_bucket": "false",
>>>>> "rgw_log_object_name": "%Y-%m-%d-%H-%i-%n",
>>>>> "rgw_log_object_name_utc": "false",
>>>>> "rgw_usage_max_shards": "32",
>>>>> "rgw_usage_max_user_shards": "1",
>>>>> "rgw_enable_ops_log": "true",
>>>>> "rgw_enable_usage_log": "true",
>>>>> "rgw_ops_log_rados": "true",
>>>>> "rgw_ops_log_socket_path": "",
>>>>> "rgw_ops_log_data_backlog": "5242880",
>>>>> "rgw_usage_log_flush_threshold": "1024",
>>>>> "rgw_usage_log_tick_interval": "30",
>>>>> "rgw_intent_log_object_name": "%Y-%m-%d-%i-%n",
>>>>> "rgw_intent_log_object_name_utc": "false",
>>>>> "rgw_init_timeout": "30",
>>>>> "rgw_mime_types_file": "\/etc\/mime.types",
>>>>> "rgw_gc_max_objs": "32",
>>>>> "rgw_gc_obj_min_wait": "7200",
>>>>> "rgw_gc_processor_max_time": "3600",
>>>>> "rgw_gc_processor_period": "3600",
>>>>> "rgw_s3_success_create_obj_status": "0",
>>>>> "rgw_resolve_cname": "false",
>>>>> "rgw_obj_stripe_size": "4194304",
>>>>> "rgw_extended_http_attrs": "",
>>>>> "mutex_perf_counter": "false",
>>>>> "internal_safe_to_start_threads": "true"}
>>>>>
>>>>>
>>>>> -----Original Message-----
>>>>> From: Mark Nelson [mailto:mark.nelson@inktank.com]
>>>>> Sent: Thursday, 20 December 2012 11:28 PM
>>>>> To: Matthew Anderson
>>>>> Cc: ceph-devel@vger.kernel.org
>>>>> Subject: Re: OSD's slow down to a crawl
>>>>>
>>>>> Hi Matt,
>>>>>
>>>>> Yeah, your log is looking pretty sparse! I imagine Sam will have a lot of questions for you. Out of curiosity have you looked at any io/cpu/memory stats when things slow down? sysprof may come in handy if it looks like it's CPU related. Also, check out the OSD admin socket.
>>>>> Sebastien Han made a nice little blog entry describing it:
>>>>>
>>>>> http://www.sebastien-han.fr/blog/2012/08/14/ceph-admin-socket/
>>>>>
>>>>> You can get a lot of information about the current state of things.
>>>>>
>>>>> Mark
>>>>>
>>>>
>>>> --
>>>> To unsubscribe from this list: send the line "unsubscribe ceph-devel"
>>>> in the body of a message to majordomo@vger.kernel.org More
>>>> majordomo info at http://vger.kernel.org/majordomo-info.html
>>>>
>>>>
>>>
>>
--
Mark Nelson
Performance Engineer
Inktank
prev parent reply other threads:[~2013-01-09 14:10 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-20 15:16 OSD's slow down to a crawl Matthew Anderson
2012-12-20 15:28 ` Mark Nelson
2012-12-20 15:51 ` Matthew Anderson
2012-12-20 15:59 ` Mark Nelson
2012-12-20 16:08 ` Matthew Anderson
2012-12-20 16:22 ` Mark Nelson
2012-12-20 16:34 ` Matthew Anderson
2012-12-20 16:30 ` Sage Weil
[not found] ` <38A500831D3DE24B90BD200D6C8701351BB15433@Exchange2010-2.corit.local>
2012-12-20 17:13 ` Sage Weil
2012-12-21 4:51 ` Matthew Anderson
2012-12-21 16:02 ` Sage Weil
2013-01-09 8:52 ` Matthew Anderson
2013-01-09 14:09 ` Mark Nelson [this message]
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