Hi, First, check the date/time on both server and check they don't differ; that's what the error says. You can configure the max allowed with "hbase.master.maxclockskew", but it's unlikely to be a good idea: it's always safer, in any distributed system, to have the servers sharing the same time. ntpd is often used for this.
Second, it's better to use the stop command than doing a kill, especially a kill -9. Doing a stop allows to close nicely the regions this server is handling, and to unregister this region server in the master. With a kill -9, it means that the master will have to detect that this regionserver is dead. By default, that's 3 minutes (zookeeper timeout). In the meantime, the regions on this server won't be available. Lastly, there is a restart command in he hbase-daemon script: it does the stop & the start.. Cheers, Nicolas On Tue, Dec 25, 2012 at 1:14 PM, hua beatls <[email protected]> wrote: > > we stop the regionserver with 'kill -9 xxx(process number）‘， and want to > restart regionserver with ' ./hbase-daemon.sh start
