Re: Random health OSD_SCRUB_ERRORS on various OSDs, after pg repair back to HEALTH_OK

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Hi

I monitor dmesg in each of the 3 nodes, no hardware issue reported. And the problem happens with various different OSDs in different nodes, for me it is clear it's not an hardware problem.

Thanks for reply



Il 05/03/2018 21:45, Vladimir Prokofev ha scritto:
> always solved by ceph pg repair <PG>
That doesn't necessarily means that there's no hardware issue. In my case repair also worked fine and returned cluster to OK state every time, but in time faulty disk fail another scrub operation, and this repeated multiple times before we replaced that disk.
One last thing to look into is dmesg at your OSD nodes. If there's a hardware read error it will be logged in dmesg.

2018-03-05 18:26 GMT+03:00 Marco Baldini - H.S. Amiata <mbaldini@xxxxxxxxxxx>:

Hi and thanks for reply

The OSDs are all healthy, in fact after a ceph pg repair <PG> the ceph health is back to OK and in the OSD log I see  <PG> repair ok, 0 fixed

The SMART data of the 3 OSDs seems fine

OSD.5

# ceph-disk list | grep osd.5
 /dev/sdd1 ceph data, active, cluster ceph, osd.5, block /dev/sdd2

# smartctl -a /dev/sdd
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.13.13-6-pve] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Barracuda 7200.14 (AF)
Device Model:     ST1000DM003-1SB10C
Serial Number:    Z9A1MA1V
LU WWN Device Id: 5 000c50 090c7028b
Firmware Version: CC43
User Capacity:    1,000,204,886,016 bytes [1.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Mon Mar  5 16:17:22 2018 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x82)	Offline data collection activity
					was completed without error.
					Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0)	The previous self-test routine completed
					without error or no self-test has ever 
					been run.
Total time to complete Offline 
data collection: 		(    0) seconds.
Offline data collection
capabilities: 			 (0x7b) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					Offline surface scan supported.
					Self-test supported.
					Conveyance Self-test supported.
					Selective Self-test supported.
SMART capabilities:            (0x0003)	Saves SMART data before entering
					power-saving mode.
					Supports SMART auto save timer.
Error logging capability:        (0x01)	Error logging supported.
					General Purpose Logging supported.
Short self-test routine 
recommended polling time: 	 (   1) minutes.
Extended self-test routine
recommended polling time: 	 ( 109) minutes.
Conveyance self-test routine
recommended polling time: 	 (   2) minutes.
SCT capabilities: 	       (0x1085)	SCT Status supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   082   063   006    Pre-fail  Always       -       193297722
  3 Spin_Up_Time            0x0003   097   097   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       60
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   091   060   045    Pre-fail  Always       -       1451132477
  9 Power_On_Hours          0x0032   085   085   000    Old_age   Always       -       13283
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       61
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   100   000    Old_age   Always       -       0 0 0
189 High_Fly_Writes         0x003a   086   086   000    Old_age   Always       -       14
190 Airflow_Temperature_Cel 0x0022   071   055   040    Old_age   Always       -       29 (Min/Max 23/32)
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       607
194 Temperature_Celsius     0x0022   029   014   000    Old_age   Always       -       29 (0 14 0 0 0)
195 Hardware_ECC_Recovered  0x001a   004   001   000    Old_age   Always       -       193297722
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       13211h+23m+08.363s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       53042120064
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       170788993187


OSD.4

# ceph-disk list | grep osd.4
 /dev/sdc1 ceph data, active, cluster ceph, osd.4, block /dev/sdc2

# smartctl -a /dev/sdc
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.13.13-6-pve] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Barracuda 7200.14 (AF)
Device Model:     ST1000DM003-1SB10C
Serial Number:    Z9A1M1BW
LU WWN Device Id: 5 000c50 090c78d27
Firmware Version: CC43
User Capacity:    1,000,204,886,016 bytes [1.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Mon Mar  5 16:20:46 2018 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x82)	Offline data collection activity
					was completed without error.
					Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0)	The previous self-test routine completed
					without error or no self-test has ever 
					been run.
Total time to complete Offline 
data collection: 		(    0) seconds.
Offline data collection
capabilities: 			 (0x7b) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					Offline surface scan supported.
					Self-test supported.
					Conveyance Self-test supported.
					Selective Self-test supported.
SMART capabilities:            (0x0003)	Saves SMART data before entering
					power-saving mode.
					Supports SMART auto save timer.
Error logging capability:        (0x01)	Error logging supported.
					General Purpose Logging supported.
Short self-test routine 
recommended polling time: 	 (   1) minutes.
Extended self-test routine
recommended polling time: 	 ( 109) minutes.
Conveyance self-test routine
recommended polling time: 	 (   2) minutes.
SCT capabilities: 	       (0x1085)	SCT Status supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   082   063   006    Pre-fail  Always       -       194906537
  3 Spin_Up_Time            0x0003   097   097   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       64
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   091   060   045    Pre-fail  Always       -       1485899434
  9 Power_On_Hours          0x0032   085   085   000    Old_age   Always       -       13390
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       65
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   100   000    Old_age   Always       -       0 0 0
189 High_Fly_Writes         0x003a   095   095   000    Old_age   Always       -       5
190 Airflow_Temperature_Cel 0x0022   074   051   040    Old_age   Always       -       26 (Min/Max 19/29)
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       616
194 Temperature_Celsius     0x0022   026   014   000    Old_age   Always       -       26 (0 14 0 0 0)
195 Hardware_ECC_Recovered  0x001a   004   001   000    Old_age   Always       -       194906537
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       13315h+20m+30.974s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       52137467719
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       177227508503



OSD.8

# ceph-disk list | grep osd.8
 /dev/sda1 ceph data, active, cluster ceph, osd.8, block /dev/sda2

# smartctl -a /dev/sda
smartctl 6.6 2016-05-31 r4324 [x86_64-linux-4.13.13-6-pve] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     Seagate Barracuda 7200.14 (AF)
Device Model:     ST1000DM003-1SB10C
Serial Number:    Z9A2BEF2
LU WWN Device Id: 5 000c50 0910f5427
Firmware Version: CC43
User Capacity:    1,000,203,804,160 bytes [1.00 TB]
Sector Sizes:     512 bytes logical, 4096 bytes physical
Rotation Rate:    7200 rpm
Form Factor:      3.5 inches
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS T13/1699-D revision 4
SATA Version is:  SATA 3.0, 6.0 Gb/s (current: 6.0 Gb/s)
Local Time is:    Mon Mar  5 16:22:47 2018 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x82)	Offline data collection activity
					was completed without error.
					Auto Offline Data Collection: Enabled.
Self-test execution status:      (   0)	The previous self-test routine completed
					without error or no self-test has ever 
					been run.
Total time to complete Offline 
data collection: 		(    0) seconds.
Offline data collection
capabilities: 			 (0x7b) SMART execute Offline immediate.
					Auto Offline data collection on/off support.
					Suspend Offline collection upon new
					command.
					Offline surface scan supported.
					Self-test supported.
					Conveyance Self-test supported.
					Selective Self-test supported.
SMART capabilities:            (0x0003)	Saves SMART data before entering
					power-saving mode.
					Supports SMART auto save timer.
Error logging capability:        (0x01)	Error logging supported.
					General Purpose Logging supported.
Short self-test routine 
recommended polling time: 	 (   1) minutes.
Extended self-test routine
recommended polling time: 	 ( 110) minutes.
Conveyance self-test routine
recommended polling time: 	 (   2) minutes.
SCT capabilities: 	       (0x1085)	SCT Status supported.

SMART Attributes Data Structure revision number: 10
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   083   063   006    Pre-fail  Always       -       224621855
  3 Spin_Up_Time            0x0003   097   097   000    Pre-fail  Always       -       0
  4 Start_Stop_Count        0x0032   100   100   020    Old_age   Always       -       275
  5 Reallocated_Sector_Ct   0x0033   100   100   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   081   060   045    Pre-fail  Always       -       149383284
  9 Power_On_Hours          0x0032   093   093   000    Old_age   Always       -       6210
 10 Spin_Retry_Count        0x0013   100   100   097    Pre-fail  Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   020    Old_age   Always       -       265
183 Runtime_Bad_Block       0x0032   100   100   000    Old_age   Always       -       0
184 End-to-End_Error        0x0032   100   100   099    Old_age   Always       -       0
187 Reported_Uncorrect      0x0032   100   100   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   100   100   000    Old_age   Always       -       0 0 0
189 High_Fly_Writes         0x003a   098   098   000    Old_age   Always       -       2
190 Airflow_Temperature_Cel 0x0022   069   058   040    Old_age   Always       -       31 (Min/Max 21/35)
193 Load_Cycle_Count        0x0032   100   100   000    Old_age   Always       -       516
194 Temperature_Celsius     0x0022   031   017   000    Old_age   Always       -       31 (0 17 0 0 0)
195 Hardware_ECC_Recovered  0x001a   005   001   000    Old_age   Always       -       224621855
197 Current_Pending_Sector  0x0012   100   100   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0010   100   100   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
240 Head_Flying_Hours       0x0000   100   253   000    Old_age   Offline      -       6154h+03m+35.126s
241 Total_LBAs_Written      0x0000   100   253   000    Old_age   Offline      -       24333847321
242 Total_LBAs_Read         0x0000   100   253   000    Old_age   Offline      -       50261005553

However it's not only these 3 OSD to have PG with errors, these are onlyl the most recent, in the last 3 months I had often OSD_SCRUB_ERRORS in various OSDs, always solved by ceph pg repair <PG>, I don't think it's an hardware issue.





Il 05/03/2018 13:40, Vladimir Prokofev ha scritto:
> candidate had a read error
speaks for itself - while scrubbing it coudn't read data.
I had similar issue, and it was just OSD dying - errors and relocated sectors in SMART, just replaced the disk. But in your case it seems that errors are on different OSDs? Are your OSDs all healthy?
You can use this command to see some details.
rados list-inconsistent-obj <pg.id> --format=json-pretty
pg.id is the PG that's reporting as inconsistent. My guess is that you'll see read errors in this output, with OSD number that encountered error. After that you have to check that OSD health - SMART details, etc.
Not always it's the disk itself that causing problems - for example we had read errors because of a faulty backplane interface in a server; changing the chassis resolved this issue.


2018-03-05 14:21 GMT+03:00 Marco Baldini - H.S. Amiata <mbaldini@xxxxxxxxxxx>:

Hi

After some days with debug_osd 5/5 I found [ERR] in different days, different PGs, different OSDs, different hosts. This is what I get in the OSD logs:

OSD.5 (host 3)
2018-03-01 20:30:02.702269 7fdf4d515700  2 osd.5 pg_epoch: 16486 pg[9.1c( v 16486'51798 (16431'50251,16486'51798] local-lis/les=16474/16475 n=3629 ec=1477/1477 lis/c 16474/16474 les/c/f 16475/16477/0 16474/16474/16474) [5,6] r=0 lpr=16474 crt=16486'51798 lcod 16486'51797 mlcod 16486'51797 active+clean+scrubbing+deep] 9.1c shard 6: soid 9:3b157c56:::rbd_data.1526386b8b4567.0000000000001761:head candidate had a read error
2018-03-01 20:30:02.702278 7fdf4d515700 -1 log_channel(cluster) log [ERR] : 9.1c shard 6: soid 9:3b157c56:::rbd_data.1526386b8b4567.0000000000001761:head candidate had a read error

OSD.4 (host 3)
2018-02-28 00:03:33.458558 7f112cf76700 -1 log_channel(cluster) log [ERR] : 13.65 shard 2: soid 13:a719ecdf:::rbd_data.5f65056b8b4567.000000000000f8eb:head candidate had a read error
OSD.8 (host 2)
2018-02-27 23:55:15.100084 7f4dd0816700 -1 log_channel(cluster) log [ERR] : 14.31 shard 1: soid 14:8cc6cd37:::rbd_data.30b15b6b8b4567.00000000000081a1:head candidate had a read error

I don't know what this error is meaning, and as always a ceph pg repair fixes it. I don't think this is normal.

Ideas?

Thanks


Il 28/02/2018 14:48, Marco Baldini - H.S. Amiata ha scritto:

Hi

I read the bugtracker issue and it seems a lot like my problem, even if I can't check the reported checksum because I don't have it in my logs, perhaps it's because of debug osd = 0/0 in ceph.conf

I just raised the OSD log level

ceph tell osd.* injectargs --debug-osd 5/5

I'll check OSD logs in the next days...

Thanks



Il 28/02/2018 11:59, Paul Emmerich ha scritto:
Hi,


Can you check the OSD log file to see if the reported checksum is 0x6706be76?


Paul

Am 28.02.2018 um 11:43 schrieb Marco Baldini - H.S. Amiata <mbaldini@xxxxxxxxxxx>:

Hello

I have a little ceph cluster with 3 nodes, each with 3x1TB HDD and 1x240GB SSD. I created this cluster after Luminous release, so all OSDs are Bluestore. In my crush map I have two rules, one targeting the SSDs and one targeting the HDDs. I have 4 pools, one using the SSD rule and the others using the HDD rule, three pools are size=3 min_size=2, one is size=2 min_size=1 (this one have content that it's ok to lose)

In the last 3 month I'm having a strange random problem. I planned my osd scrubs during the night (osd scrub begin hour = 20, osd scrub end hour = 7) when office is closed so there is low impact on the users. Some mornings, when I ceph the cluster health, I find: 

HEALTH_ERR X scrub errors; Possible data damage: Y pgs inconsistent
OSD_SCRUB_ERRORS X scrub errors
PG_DAMAGED Possible data damage: Y pg inconsistent

X and Y sometimes are 1, sometimes 2.

I issue a ceph health detail, check the damaged PGs, and run a ceph pg repair for the damaged PGs, I get

instructing pg PG on osd.N to repair

PG are different, OSD that have to repair PG is different, even the node hosting the OSD is different, I made a list of all PGs and OSDs. This morning is the most recent case:

> ceph health detail
HEALTH_ERR 2 scrub errors; Possible data damage: 2 pgs inconsistent
OSD_SCRUB_ERRORS 2 scrub errors
PG_DAMAGED Possible data damage: 2 pgs inconsistent
pg 13.65 is active+clean+inconsistent, acting [4,2,6]
pg 14.31 is active+clean+inconsistent, acting [8,3,1]

> ceph pg repair 13.65
instructing pg 13.65 on osd.4 to repair

(node-2)> tail /var/log/ceph/ceph-osd.4.log
2018-02-28 08:38:47.593447 7f112cf76700  0 log_channel(cluster) log [DBG] : 13.65 repair starts
2018-02-28 08:39:37.573342 7f112cf76700  0 log_channel(cluster) log [DBG] : 13.65 repair ok, 0 fixed
> ceph pg repair 14.31
instructing pg 14.31 on osd.8 to repair

(node-3)> tail /var/log/ceph/ceph-osd.8.log
2018-02-28 08:52:37.297490 7f4dd0816700  0 log_channel(cluster) log [DBG] : 14.31 repair starts
2018-02-28 08:53:00.704020 7f4dd0816700  0 log_channel(cluster) log [DBG] : 14.31 repair ok, 0 fixed


I made a list of when I got OSD_SCRUB_ERRORS, what PG and what OSD had to repair PG. Date is dd/mm/yyyy

21/12/2017   --  pg 14.29 is active+clean+inconsistent, acting [6,2,4]

18/01/2018   --  pg 14.5a is active+clean+inconsistent, acting [6,4,1]

22/01/2018   --  pg 9.3a is active+clean+inconsistent, acting [2,7]

29/01/2018   --  pg 13.3e is active+clean+inconsistent, acting [4,6,1]
                 instructing pg 13.3e on osd.4 to repair

07/02/2018   --  pg 13.7e is active+clean+inconsistent, acting [8,2,5]
                 instructing pg 13.7e on osd.8 to repair

09/02/2018   --  pg 13.30 is active+clean+inconsistent, acting [7,3,2]
                 instructing pg 13.30 on osd.7 to repair

15/02/2018   --  pg 9.35 is active+clean+inconsistent, acting [1,8]
                 instructing pg 9.35 on osd.1 to repair

                 pg 13.3e is active+clean+inconsistent, acting [4,6,1]
                 instructing pg 13.3e on osd.4 to repair

17/02/2018   --  pg 9.2d is active+clean+inconsistent, acting [7,5]
                 instructing pg 9.2d on osd.7 to repair                 

22/02/2018   --  pg 9.24 is active+clean+inconsistent, acting [5,8]
                 instructing pg 9.24 on osd.5 to repair

28/02/2018   --  pg 13.65 is active+clean+inconsistent, acting [4,2,6]
                 instructing pg 13.65 on osd.4 to repair

                 pg 14.31 is active+clean+inconsistent, acting [8,3,1]
                 instructing pg 14.31 on osd.8 to repair


If can be useful, my ceph.conf is here:

[global]
auth client required = none
auth cluster required = none
auth service required = none
fsid = 24d5d6bc-0943-4345-b44e-46c19099004b
cluster network = 10.10.10.0/24
public network = 10.10.10.0/24
keyring = /etc/pve/priv/$cluster.$name.keyring
mon allow pool delete = true
osd journal size = 5120
osd pool default min size = 2
osd pool default size = 3
bluestore_block_db_size = 64424509440

debug asok = 0/0
debug auth = 0/0
debug buffer = 0/0
debug client = 0/0
debug context = 0/0
debug crush = 0/0
debug filer = 0/0
debug filestore = 0/0
debug finisher = 0/0
debug heartbeatmap = 0/0
debug journal = 0/0
debug journaler = 0/0
debug lockdep = 0/0
debug mds = 0/0
debug mds balancer = 0/0
debug mds locker = 0/0
debug mds log = 0/0
debug mds log expire = 0/0
debug mds migrator = 0/0
debug mon = 0/0
debug monc = 0/0
debug ms = 0/0
debug objclass = 0/0
debug objectcacher = 0/0
debug objecter = 0/0
debug optracker = 0/0
debug osd = 0/0
debug paxos = 0/0
debug perfcounter = 0/0
debug rados = 0/0
debug rbd = 0/0
debug rgw = 0/0
debug throttle = 0/0
debug timer = 0/0
debug tp = 0/0


[osd]
keyring = /var/lib/ceph/osd/ceph-$id/keyring
osd max backfills = 1
osd recovery max active = 1

osd scrub begin hour = 20
osd scrub end hour = 7
osd scrub during recovery = false
osd scrub load threshold = 0.3

[client]
rbd cache = true
rbd cache size = 268435456      # 256MB
rbd cache max dirty = 201326592    # 192MB
rbd cache max dirty age = 2
rbd cache target dirty = 33554432    # 32MB
rbd cache writethrough until flush = true


#[mgr]
#debug_mgr = 20


[mon.pve-hs-main]
host = pve-hs-main
mon addr = 10.10.10.251:6789

[mon.pve-hs-2]
host = pve-hs-2
mon addr = 10.10.10.252:6789

[mon.pve-hs-3]
host = pve-hs-3
mon addr = 10.10.10.253:6789

My ceph versions:

{
    "mon": {
        "ceph version 12.2.2 (215dd7151453fae88e6f968c975b6ce309d42dcf) luminous (stable)": 3
    },
    "mgr": {
        "ceph version 12.2.2 (215dd7151453fae88e6f968c975b6ce309d42dcf) luminous (stable)": 3
    },
    "osd": {
        "ceph version 12.2.2 (215dd7151453fae88e6f968c975b6ce309d42dcf) luminous (stable)": 12
    },
    "mds": {},
    "overall": {
        "ceph version 12.2.2 (215dd7151453fae88e6f968c975b6ce309d42dcf) luminous (stable)": 18
    }
}

My ceph osd tree:

ID CLASS WEIGHT  TYPE NAME            STATUS REWEIGHT PRI-AFF
-1       8.93686 root default
-6       2.94696     host pve-hs-2
 3   hdd 0.90959         osd.3            up  1.00000 1.00000
 4   hdd 0.90959         osd.4            up  1.00000 1.00000
 5   hdd 0.90959         osd.5            up  1.00000 1.00000
10   ssd 0.21819         osd.10           up  1.00000 1.00000
-3       2.86716     host pve-hs-3
 6   hdd 0.85599         osd.6            up  1.00000 1.00000
 7   hdd 0.85599         osd.7            up  1.00000 1.00000
 8   hdd 0.93700         osd.8            up  1.00000 1.00000
11   ssd 0.21819         osd.11           up  1.00000 1.00000
-7       3.12274     host pve-hs-main
 0   hdd 0.96819         osd.0            up  1.00000 1.00000
 1   hdd 0.96819         osd.1            up  1.00000 1.00000
 2   hdd 0.96819         osd.2            up  1.00000 1.00000
 9   ssd 0.21819         osd.9            up  1.00000 1.00000

My pools:

pool 9 'cephbackup' replicated size 2 min_size 1 crush_rule 1 object_hash rjenkins pg_num 64 pgp_num 64 last_change 5665 flags hashpspool stripe_width 0 application rbd
        removed_snaps [1~3]
pool 13 'cephwin' replicated size 3 min_size 2 crush_rule 1 object_hash rjenkins pg_num 128 pgp_num 128 last_change 16454 flags hashpspool stripe_width 0 application rbd
        removed_snaps [1~5]
pool 14 'cephnix' replicated size 3 min_size 2 crush_rule 1 object_hash rjenkins pg_num 128 pgp_num 128 last_change 16482 flags hashpspool stripe_width 0 application rbd
        removed_snaps [1~227]
pool 17 'cephssd' replicated size 3 min_size 2 crush_rule 2 object_hash rjenkins pg_num 64 pgp_num 64 last_change 8601 flags hashpspool stripe_width 0 application rbd
        removed_snaps [1~3]


I can't understand where the problem comes from, I don't think it's hardware, if I had a failed disk, then I should have problems always on the same OSD. Any ideas

Thanks



--
Marco Baldini
H.S. Amiata Srl
Ufficio:   0577-779396
Cellulare:   335-8765169
WEB:   www.hsamiata.it
EMAIL:   mbaldini@xxxxxxxxxxx
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-- 
Mit freundlichen Grüßen / Best Regards
Paul Emmerich

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81247 München
Tel: +49 89 1896585 90

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--
Marco Baldini
H.S. Amiata Srl
Ufficio:   0577-779396
Cellulare:   335-8765169
WEB:   www.hsamiata.it
EMAIL:   mbaldini@xxxxxxxxxxx 


_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com

--
Marco Baldini
H.S. Amiata Srl
Ufficio:   0577-779396
Cellulare:   335-8765169
WEB:   www.hsamiata.it
EMAIL:   mbaldini@xxxxxxxxxxx

_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com




_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com

--
Marco Baldini
H.S. Amiata Srl
Ufficio:   0577-779396
Cellulare:   335-8765169
WEB:   www.hsamiata.it
EMAIL:   mbaldini@xxxxxxxxxxx

_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com




_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com

--
Marco Baldini
H.S. Amiata Srl
Ufficio:   0577-779396
Cellulare:   335-8765169
WEB:   www.hsamiata.it
EMAIL:   mbaldini@xxxxxxxxxxx 
_______________________________________________
ceph-users mailing list
ceph-users@xxxxxxxxxxxxxx
http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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