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Hadoop >> mail # user >> Hbase and "ghost regionservers"

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Re: Hbase and "ghost regionservers"
For the record, this issue was caused by multiple entries in
/etc/hosts for global IP.

for example /etc/hosts localhost

removing the second entry (master, resolved the issue.


On Thu, Aug 16, 2012 at 2:17 PM, Håvard Wahl Kongsgård
> Hi, when I start my hbase cluster, hbase sometimes list 'ghost
> regionservers' without any regions
>     kongs2.medisin.ntnu.no:60020 1345115409411
>         requests=0, regions=0, usedHeap=0, maxHeap=0
> netstat does not list any services on 60020
> if I start a region server locally
> I get one real services and the ghost server
>     kongs2.medisin.ntnu.no:60020 1345119112497
>         requests=0, regions=64, usedHeap=141, maxHeap=1487
>     kongs2.medisin.ntnu.no:60020 1345119112497
>         requests=0, regions=0, usedHeap=0, maxHeap=0
> Is it possible to manually blacklist or remove regionserver, via the
> hbase shell?
> I use the latest hbase from cloudera
> -Håvard

Håvard Wahl Kongsgård
Faculty of Medicine &
Department of Mathematical Sciences