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 <afou...@onfocus.io> 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 <jdcry...@apache.org>: > >> 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 <afou...@onfocus.io> >> 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
