hi
what's the recommended nodes for NN, hmaster and zk nodes for a larger cluster,
lets say 50-100+
also, what would be the ideal replication factor for larger clusters when u
have 3-4 racks ?
--
David
Thanks Carlos. Do you have any rough estimates on timings on snapshot ? (by
leaving copy)
On Thu, Nov 15, 2012 at 9:52 AM, Espinoza,Carlos wrote:
> This is what we've been using https://github.com/oclc/HBase-Backup
>
> -Original Message-
> From: David Charle [mailto:dbc
u should upgrade to 0.94 as you also had issues with row locks as newer version
had improved miniBatchPut code base.
On Nov 7, 2012, at 9:57 AM, Varun Sharma wrote:
> Thanks for the response. One more point is that I am running hadoop 1.0.4
> with hbase 0.92 - not sure if that is known to have
be able to replicate
> the
> > missing blocks.
> >
> > Replace disk w new disk and rebuild file system.
> > Bring node up.
> > Rebalance cluster.
> >
> > That should be pretty much it.
> >
> >
> > On Jun 21, 2012, at 10:17 PM, David Charle
t; Node goes down.
> 10 min later, cluster sees node down. Should then be able to replicate the
> missing blocks.
>
> Replace disk w new disk and rebuild file system.
> Bring node up.
> Rebalance cluster.
>
> That should be pretty much it.
>
>
> On Jun 21, 2012, at 10
What is the best practice to remove a node and add the same node back for
hbase/hadoop ?
Currently in our 10 node cluster; 2 nodes went down (bad disk, so node is
down as its the root volume+data); need to replace the disk and add them
back. Any quick suggestions or pointers to doc for the right p
As per the docs, it looks like painless to upgrade from 0.20.3 to 0.90
(only need to run upgrade script if upgrading to 0.92).
http://hbase.apache.org/book/upgrading.html#upgrade0.90
Anyone has experience in upgrading from 0.20 to 0.90 or something similar
with major upgrade ? Do we need to upgrad
David
> Sent from iPhone.
>
> On Apr 23, 2012, at 11:39 PM, David Charle wrote:
>
> > Does balancer_switch=true; rebalances any skew in the existing keys or it
> > only does for all new regions ? The requests seems to be oK across all
> > servers.
> >
&g
Does balancer_switch=true; rebalances any skew in the existing keys or it
only does for all new regions ? The requests seems to be oK across all
servers.
On Mon, Apr 23, 2012 at 8:03 PM, David Charle wrote:
> Thanks Bryan.
>
> Here is the regions count:
>
> 1: 2616
> 2: 2620
&
ionservers.
>
> On Mon, Apr 23, 2012 at 9:41 PM, David Charle
> wrote:
>
> > Hi
> >
> > What can make a region server unbalanced when it comes to space ? (and
> > possibly requests too).
> >
> > For example; I have 5 node cluster (replication factor of 3);
Hi
What can make a region server unbalanced when it comes to space ? (and
possibly requests too).
For example; I have 5 node cluster (replication factor of 3); and in which
all 4 has same size; where as one node is almost double in size for /hbase.
Any help will be appreciated; esp what makes th
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