Re: POOL_NEARFULL

[Nghia Than <contact@xxxxxxxxxxxxxxx>]

You may try this command:

766  ceph pg set_nearfull_ratio 0.86

  767  ceph pg set_full_ratio 0.9

On Wed, Dec 20, 2017 at 12:45 AM, Jean-Charles Lopez <jelopez@xxxxxxxxxx> wrote:

Update your ceph.conf file

JC

On Dec 19, 2017, at 09:03, Karun Josy <karunjosy1@xxxxxxxxx> wrote:

Hi ,

That makes sense.

How can I adjust the osd nearfull ratio ?  I tried this, however it didnt change. 

$ ceph tell mon.* injectargs "--mon_osd_nearfull_ratio .86"

mon.mon-a1: injectargs:mon_osd_nearfull_ratio = '0.860000' (not observed, change may require restart)

mon.mon-a2: injectargs:mon_osd_nearfull_ratio = '0.860000' (not observed, change may require restart)

mon.mon-a3: injectargs:mon_osd_nearfull_ratio = '0.860000' (not observed, change may require restart)

Karun Josy

On Tue, Dec 19, 2017 at 10:05 PM, Jean-Charles Lopez <jelopez@xxxxxxxxxx> wrote:

OK so it’s telling you that the near full OSD holds PGs for these three pools.

JC

On Dec 19, 2017, at 08:05, Karun Josy <karunjosy1@xxxxxxxxx> wrote:

No, I haven't.

Interestingly, the POOL_NEARFULL flag is shown only when there is OSD_NEARFULL  flag.

I have recently upgraded to Luminous 12.2.2, haven't seen this flag in 12.2.1

Karun Josy

On Tue, Dec 19, 2017 at 9:27 PM, Jean-Charles Lopez <jelopez@xxxxxxxxxx> wrote:

Hi

did you set quotas on these pools?

See this page for explanation of most error messages: http://docs.ceph.com/docs/master/rados/operations/health-checks/#pool-near-full

JC

On Dec 19, 2017, at 01:48, Karun Josy <karunjosy1@xxxxxxxxx> wrote:

Hello,

In one of our clusters, health is showing these warnings :

---------

OSD_NEARFULL 1 nearfull osd(s)

    osd.22 is near full

POOL_NEARFULL 3 pool(s) nearfull

    pool 'templates' is nearfull

    pool 'cvm' is nearfull

    pool 'ecpool' is nearfull

------------

One osd is above 85% used, which I know caused the OSD_Nearfull flag.

But what does pool(s) nearfull mean ?

And how can I correct it ?

]$ ceph df

GLOBAL:

    SIZE       AVAIL      RAW USED     %RAW USED

    31742G     11147G       20594G         64.88

POOLS:

    NAME            ID     USED       %USED     MAX AVAIL     OBJECTS

    templates      5        196G     23.28          645G       50202

    cvm               6        6528         0         1076G         770

    ecpool           7      10260G     83.56         2018G     3004031

Karun 

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Nghia Than

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