hbase-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Jean-Marc Spaggiari <jean-m...@spaggiari.org>
Subject Re: is it a good idea to disable tables not currently hot?
Date Fri, 18 Mar 2016 16:28:59 GMT
Hi Frank,

It might be doable.

What HBase version are you running?

JMS

2016-03-18 12:25 GMT-04:00 Frank Luo <jluo@merkleinc.com>:

> No one has experience disabling tables?
>
> -----Original Message-----
> From: Frank Luo [mailto:jluo@merkleinc.com]
> Sent: Thursday, March 17, 2016 4:51 PM
> To: user@hbase.apache.org
> Subject: is it a good idea to disable tables not currently hot?
>
> We have a multi tenants environment and each client occupies x number of
> hbase regions. We currently have about 500 regions per region server and I
> understand the guideline is less than 200. So we need to reduce the region
> counts. Increasing region file size is no more an option because we are
> already at 5G and I don’t want to go higher.
>
> Due to our unique use cases, all clients are running for a few hours in a
> day, then being quiet for the rest of time. So I am thinking whether it is
> a good idea to disable all quiet tables and only enable them when they are
> ready to run. Does anyone have experience on that?
>
> One thing I worry about is the Balancer. I am pretty sure the balancer
> will be confused when regions come and go. And I cannot afford not to have
> it running in case of region server crashes and come back. So doesn’t
> anyone have good ideas how to handle it?
>
> I already doing compact myself so that is not an issue.
>
> Another related question, if a region is enabled but not active
> read/write, how much resources it takes in terms of region server?
>
> Thanks!
>
> Frank Luo
>
>
> Merkle was named a leader in Customer Insights Services Providers by
> Forrester Research
> <
> http://www.merkleinc.com/who-we-are-customer-relationship-marketing-agency/awards-recognition/merkle-named-leader-forrester?utm_source=emailfooter&utm_medium=email&utm_campaign=2016MonthlyEmployeeFooter
> >
>
> Forrester Research report names 500friends, a Merkle Company, a leader in
> customer Loyalty Solutions for Midsize Organizations<
> http://www.merkleinc.com/who-we-are-customer-relationship-marketing-agency/awards-recognition/500friends-merkle-company-named?utm_source=emailfooter&utm_medium=email&utm_campaign=2016MonthlyEmployeeFooter
> >
> This email and any attachments transmitted with it are intended for use by
> the intended recipient(s) only. If you have received this email in error,
> please notify the sender immediately and then delete it. If you are not the
> intended recipient, you must not keep, use, disclose, copy or distribute
> this email without the author’s prior permission. We take precautions to
> minimize the risk of transmitting software viruses, but we advise you to
> perform your own virus checks on any attachment to this message. We cannot
> accept liability for any loss or damage caused by software viruses. The
> information contained in this communication may be confidential and may be
> subject to the attorney-client privilege.
>

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