hbase-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Mohammad Tariq <donta...@gmail.com>
Subject Re: Region hot spotting
Date Wed, 21 Nov 2012 17:43:53 GMT
Hello again,

     Just a small query. Is your data getting streamed continuously or are
you making use of bulk load. In case of latter, I don't find any harm in
creating pre-splitted tables.

Regards,
    Mohammad Tariq



On Wed, Nov 21, 2012 at 2:14 PM, ramkrishna vasudevan <
ramkrishna.s.vasudevan@gmail.com> wrote:

> Hi
> This link is pretty much useful.  But still there too it says if you dont
> pre split you need to wait for the salting to help you from hotspotting
> till the region gets splitted.
>
> Mohammad just pointing this to say the usefulness of presplitting
> definitely your's is a good pointer to Ajay. :)
>
> Regards
> Ram
>
> On Wed, Nov 21, 2012 at 1:59 PM, Mohammad Tariq <dontariq@gmail.com>
> wrote:
>
> > Hello Ajay,
> >
> >  You can use 'salting' if you don't want to presplit your table. You
> might
> > this link useful :
> >
> >
> http://blog.sematext.com/2012/04/09/hbasewd-avoid-regionserver-hotspotting-despite-writing-records-with-sequential-keys/
> >
> > HTH
> >
> > Regards,
> >     Mohammad Tariq
> >
> >
> >
> > On Wed, Nov 21, 2012 at 1:49 PM, ramkrishna vasudevan <
> > ramkrishna.s.vasudevan@gmail.com> wrote:
> >
> > > Hotspotting is bound to happen until the region starts splitting and
> gets
> > > assigned to diff region servers.
> > >
> > > Regards
> > > Ram
> > >
> > > On Wed, Nov 21, 2012 at 12:49 PM, Ajay Bhosle
> > > <ajay.bhosle@relianceada.com>wrote:
> > >
> > > > Hi,
> > > >
> > > >
> > > >
> > > > I am inserting some data in hbase which is getting hot spotted in a
> > > > particular server. The format of the row key is (0 or
> > > > 1)|[timestamp]_[sequence].  Basically I want to add log information
> to
> > > > hbase
> > > > and search the records based on range of dates.
> > > >
> > > >
> > > >
> > > > Can someone suggest any configuration changes or any ideas on how the
> > row
> > > > key should be design. I do not want to specify the splits while
> > creating
> > > > table.
> > > >
> > > >
> > > >
> > > > Thanks
> > > >
> > > > Ajay
> > > >
> > > >
> > > >
> > > >
> > > > The information contained in this electronic message (email) and any
> > > > attachments to this email are intended for the exclusive use of the
> > > > addressee(s) and access to this email by any one else is
> unauthorised.
> > > The
> > > > email may contain proprietary, confidential or privileged information
> > or
> > > > information relating to Reliance Group. If you are not the intended
> > > > recipient, please notify the sender by telephone, fax, or return
> email
> > > and
> > > > delete this communication and any attachments thereto, immediately
> from
> > > > your computer. Any dissemination, distribution, or copying of this
> > > > communication and the attachments thereto (in whole or part), in any
> > > > manner, is strictly prohibited and actionable at law. The recipient
> > > > acknowledges that emails are susceptible to alteration and their
> > > integrity
> > > > can not be guaranteed and that Company does not guarantee that any
> > e-mail
> > > > is virus-free and accept no liability for any damage caused by any
> > virus
> > > > transmitted by this email.
> > > >
> > >
> >
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message