Greaat, Thank you all very much ! 2017-03-10 1:59 GMT+01:00 Todd Lipcon <[email protected]>:
> It should disappear when you next restart the masters. They don't persist > the list of tservers, but rather learn about them dynamically when they > come up. > > -Todd > > On Thu, Mar 9, 2017 at 11:05 AM, Alexandre Fouché <[email protected]> > wrote: > >> Oh ok, so since i need to do replace partitionning on all other nodes, i >> suppose tabletserver5 will get populated when i delete other tabletservers >> one by one. >> >> And indeed, now i see from the webUI, that all my tablets still have 3 >> replicas, so Kudu must have ensured a replication of 3 when tabletserver5 >> was considered dead. (i wonder how much time after though) >> >> Yet, is it possible to have the masters forget about the dead tablet >> server UUID, so that it does not show up anymore in the webUI ? Or will it >> disapperar after a while or a Kudu restart maybe ? >> >> >> 2017-03-09 17:48 GMT+01:00 Jean-Daniel Cryans <[email protected]>: >> >>> Hi Alexandre, >>> >>> Tablet replicas are not tied to a UUID, so removing or reusing one >>> wouldn't achieve what you want. The main thing missing here is that Kudu >>> doesn't do tablet re-balancing at runtime, so tabletserver5 will get >>> tablets the next time a node dies or if you create new tables. >>> >>> Obviously that's something we'd like to address but nobody has come >>> around to doing it so far. >>> >>> Sincèrement, >>> >>> J-D >>> >>> On Thu, Mar 9, 2017 at 6:34 AM, Alexandre Fouché <[email protected]> >>> wrote: >>> >>>> Hi all >>>> >>>> I have searched and searched, but could not find how to tell that a >>>> previous tablet server uuid is to be removed >>>> I had to replace disks on tabletserver5, so i deleted all data, since >>>> there were replicas on other servers. Now that i restarted Kudu on >>>> tabletserver5 with empty data, it initialised fine, but since (i saw >>>> afterwards on webUI) it has a new UUID, it is recognised as a new server, >>>> and it does not resync its tablets replcas with other tablet servers >>>> (edited). It has the same hostname as before but different UUID >>>> >>>> And in WebUI, i see the same tabletserver5 with the previous UUID >>>> marked as ‘dead' >>>> >>>> How can i tel Kudu to completely remove the dead tabletserver5 UUID and >>>> populate the new tabletserver5 UUID instead ? >>>> >>>> the `kudu` command line tool does not seem to allow to delete a tablet >>>> server UUID, or decommission >>>> so how ? >>>> >>>> Or other way, how can i recreate an empty Kudu tablet server reusing my >>>> old UUID ? >>>> >>> >>> >> > > > -- > Todd Lipcon > Software Engineer, Cloudera >
