On Fri, Aug 5, 2011 at 2:13 PM, Brent Miller <[email protected]> wrote: > I was under the assumption that if a regionserver failed, the clients would > automatically switch over to a good regionserver. Also, if I pull up the > mater's web UI, it no longer shows the failed regionserver in the "Region > Servers" section. Is this a bug or does the client have to somehow check if > a regionserver is valid? > > We're using Clouder'a HBase 0.90.3-cdh3u1 on Ubuntu 10.04 >
What usually happens is that when a regionserver dies, the master will notice its absence and then it will deploy the regions the dead server was carrying elsewhere. The process that does this is named ServerShutdownHandler. In your case above, it seems that this handler is having an issue processing the dead server -- so the regions did not get reassigned. What is the exception that is being thrown when we try to contact .META. region? St.Ack
