See this presentation from last year's HBaseCon : http://www.slideshare.net/cloudera/internals-session-2
Cheers On Thu, Mar 13, 2014 at 1:54 PM, Jeff Storey <[email protected]> wrote: > Thanks for the quick reply. It looks like this feature is in the works. > > What are people doing in the absence of this feature? Simply allowing the > downtime? > > > On Thu, Mar 13, 2014 at 4:51 PM, Ted Yu <[email protected]> wrote: > > > Take a look at HBASE-10070: > > HBase read high-availability using eventually consistent region replicas > > > > Cheers > > > > > > On Thu, Mar 13, 2014 at 1:49 PM, Jeff Storey <[email protected]> > > wrote: > > > > > I'm still somewhat new to HBase and I'm trying to understand > > possibilities > > > for region server failover. If I have a region server that goes down, > it > > > looks like I won't have any access to that region's data until a backup > > > server comes online. I read that I can reduce the zookeeper timeout to > > > minimize that time down, but in a system that is meant to be highly > > > available, it seems like this could be cause for concern since a > portion > > of > > > the data will be entirely inaccessible. > > > > > > Is there a way to have a secondary read-only region server that becomes > > the > > > new primary region server in the event of a failure? This way that data > > > will always be accessible unless all of the region server backups fail? > > Or > > > are there other ways to replicate region data to avoid loss of access > for > > > possibly several minutes to that data if the server goes down? > > > > > > Thanks, > > > Jeff > > > > > >
