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HBase, mail # user - regionserver restartup error


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Re: regionserver restartup error
hua beatls 2012-12-26, 16:59
HI,
    yes, data/time is different, we correct the NTP configuraiton ,and
problem solved.
   Thanks!
    beatls

On Tue, Dec 25, 2012 at 10:40 PM, Nicolas Liochon <[EMAIL PROTECTED]> wrote:

> 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
>