Swami, Try https://github.com/cernceph/ceph-scripts/blob/master/tools/crush-reweight-by-utilization.py, that'll work with Firefly and allow you to only tune down weight of a specific number of overfull OSDs. Cheers, On 7 June 2016 at 23:11, M Ranga Swami Reddy <swamireddy@xxxxxxxxx> wrote: > OK, understood... > To fix the nearfull warn, I am reducing the weight of a specific OSD, > which filled >85%.. > Is this work-around advisable? > > Thanks > Swami > > On Tue, Jun 7, 2016 at 6:37 PM, Sage Weil <sage@xxxxxxxxxxxx> wrote: >> On Tue, 7 Jun 2016, M Ranga Swami Reddy wrote: >>> Hi Sage, >>> >Jewel and the latest hammer point release have an improved >>> >reweight-by-utilization (ceph osd test-reweight-by-utilization ... to dry >>> > run) to correct this. >>> >>> Thank you....But not planning to upgrade the cluster soon. >>> So, in this case - are there any tunable options will help? like >>> "crush tunable optimal" or so? >>> OR any other configuration options change will help? >> >> Firefly also has reweight-by-utilization... it's just a bit less friendly >> than the newer versions. CRUSH tunables don't generally help here unless >> you have lots of OSDs that are down+out. >> >> Note that firefly is no longer supported. >> >> sage >> >> >>> >>> >>> Thanks >>> Swami >>> >>> >>> On Tue, Jun 7, 2016 at 6:00 PM, Sage Weil <sage@xxxxxxxxxxxx> wrote: >>> > On Tue, 7 Jun 2016, M Ranga Swami Reddy wrote: >>> >> Hello, >>> >> I have aorund 100 OSDs in my ceph cluster. In this a few OSDs filled >>> >> with >85% of data and few OSDs filled with ~60%-70% of data. >>> >> >>> >> Any reason why the unevenly OSDs filling happned? do I need to any >>> >> tweaks on configuration to fix the above? Please advise. >>> >> >>> >> PS: Ceph version is - 0.80.7 >>> > >>> > Jewel and the latest hammer point release have an improved >>> > reweight-by-utilization (ceph osd test-reweight-by-utilization ... to dry >>> > run) to correct this. >>> > >>> > sage >>> > >>> -- >>> To unsubscribe from this list: send the line "unsubscribe ceph-devel" in >>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>> More majordomo info at http://vger.kernel.org/majordomo-info.html >>> >>> > -- > To unsubscribe from this list: send the line "unsubscribe ceph-devel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Cheers, ~Blairo -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
