I have this error when try to show mappings with crushtool: # crushtool -i crush_map_new --test --rule 2 --num-rep 7 --show-mappings CRUSH rule 2 x 0 [-5,-45,-49,-47,-43,-41,-29] *** Caught signal (Segmentation fault) ** in thread 7f7f7a0ccb40 thread_name:crushtool El 6/5/21 a las 13:47, Eugen Block escribió: > Yes it is possible, but you should validate it with crushtool before > injecting it to make sure the PGs land where they belong. > > crushtool -i crushmap.bin --test --rule 2 --num-rep 7 --show-mappings > crushtool -i crushmap.bin --test --rule 2 --num-rep 7 --show-bad-mappings > > If you don't get bad mappings and the 'show-mappings' confirms the PG > distribution by host you can inject it. But be aware of a lot of data > movement, that could explain the (temporarily) unavailable PGs. But to > make your cluster resilient against host failure you'll have to go > through that at some point. > > > https://docs.ceph.com/en/latest/rados/operations/crush-map-edits/ > > > Zitat von Andres Rojas Guerrero <a.rojas@xxxxxxx>: > >> Hi, I try to make a new crush rule (Nautilus) in order take the new >> correct_failure_domain to hosts: >> >> "rule_id": 2, >> "rule_name": "nxtcloudAFhost", >> "ruleset": 2, >> "type": 3, >> "min_size": 3, >> "max_size": 7, >> "steps": [ >> { >> "op": "set_chooseleaf_tries", >> "num": 5 >> }, >> { >> "op": "set_choose_tries", >> "num": 100 >> }, >> { >> "op": "take", >> "item": -1, >> "item_name": "default" >> }, >> { >> "op": "choose_indep", >> "num": 0, >> "type": "host" >> }, >> { >> "op": "emit" >> >> And I have changed the pool to this new crush rule: >> >> # ceph osd pool set nxtcloudAF crush_rule nxtcloudAFhost >> >> But suddenly the cephfs it's unavailable: >> >> # ceph status >> cluster: >> id: c74da5b8-3d1b-483e-8b3a-739134db6cf8 >> health: HEALTH_WARN >> 11 clients failing to respond to capability release >> 2 MDSs report slow metadata IOs >> 1 MDSs report slow requests >> >> >> And clients failing to respond: >> >> HEALTH_WARN 11 clients failing to respond to capability release; 2 MDSs >> report slow metadata IOs; 1 MDSs report slow requests >> MDS_CLIENT_LATE_RELEASE 11 clients failing to respond to capability >> release >> mdsceph2mon03(mds.1): Client nxtcl3: failing to respond to >> capability release client_id: 1524269 >> mdsceph2mon01(mds.0): Client nxtcl5:nxtclproAF failing to respond to >> >> >> I reversed the change, returning to the original crush rule, and all >> it's Ok. My question if it's possible to change on fly the crush rule of >> a EC pool. >> >> >> Thanks >> El 5/5/21 a las 18:14, Andres Rojas Guerrero escribió: >>> Thanks, I will test it. >>> >>> El 5/5/21 a las 16:37, Joachim Kraftmayer escribió: >>>> Create a new crush rule with the correct failure domain, test it >>>> properly and assign it to the pool(s). >>>> >>> >> >> -- >> ******************************************************* >> Andrés Rojas Guerrero >> Unidad Sistemas Linux >> Area Arquitectura Tecnológica >> Secretaría General Adjunta de Informática >> Consejo Superior de Investigaciones Científicas (CSIC) >> Pinar 19 >> 28006 - Madrid >> Tel: +34 915680059 -- Ext. 990059 >> email: a.rojas@xxxxxxx >> ID comunicate.csic.es: @50852720l:matrix.csic.es >> ******************************************************* >> _______________________________________________ >> ceph-users mailing list -- ceph-users@xxxxxxx >> To unsubscribe send an email to ceph-users-leave@xxxxxxx > > > _______________________________________________ > ceph-users mailing list -- ceph-users@xxxxxxx > To unsubscribe send an email to ceph-users-leave@xxxxxxx -- ******************************************************* Andrés Rojas Guerrero Unidad Sistemas Linux Area Arquitectura Tecnológica Secretaría General Adjunta de Informática Consejo Superior de Investigaciones Científicas (CSIC) Pinar 19 28006 - Madrid Tel: +34 915680059 -- Ext. 990059 email: a.rojas@xxxxxxx ID comunicate.csic.es: @50852720l:matrix.csic.es ******************************************************* _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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