Hello Ram,
You schema looks fine to me.
And, you can have anything as your rowkey, but keeping in mind the types of
queries which your table is going to serve. It would be helpful for us to
answer your question in a better manner if can tell us what kind of queries
you face mostly? Thank
Hi,
we have a c++ client, and the thrift server was installed on the
Ndatanode ®ionservers.
( from the official document we know that it is not recommended for
the thrift colocated with nn &jobtracker).
as we understand the processs from client to hbase shown below:
client--
They would move over to live region servers.
Cheers
On Dec 23, 2012, at 2:59 PM, Brennon Church wrote:
> I'm curious. If I disable the hbase balancer, what happens when a
> regionserver goes offline? Will those regions get moved over to the
> remaining hosts as would normally be the case
Dear all,
I have 50,000 row with diagnosis qualifier = "cardiac", and another 50,000 rows
with "renal".
When I type this in Hbase shell,
import org.apache.hadoop.hbase.filter.CompareFilter
import org.apache.hadoop.hbase.filter.SingleColumnValueFilter
import org.apache.hadoop.hbase.filter.Subst
I'm curious. If I disable the hbase balancer, what happens when a
regionserver goes offline? Will those regions get moved over to the
remaining hosts as would normally be the case? Or will they remain
unavailable until the balancer is run manually?
Thanks.
--Brennon
On 12/22/12 5:48 AM, T
On 22.12.2012 05:59, Ted Yu wrote:
Dimitry:
StochasticLoadBalancer doesn't provide the capability of grouping selected
regions on subset of region servers.
I mentioned the StochasticBalancer more as an example. It still should
be possible to achieve something similar by extending the balancer
t
Hello Dalia,
You can go the Hbase webUI to see the details, as Ted has specified
earlier. But if you really want to monitor everything properly I would
suggest to configure Ganglia to capture the metrics. To do a quick check
you can also use "status" command from the Hbase shell.
hbase> stat
Hi,
On 23.12.2012 14:38, Dalia Sobhy wrote:
So do you have an example of multithreading program, because I am using the
read-made Java API not thrift server, so I don't know how to write a
multithreaded program using this API.
You should take a loot at YCSB
(https://github.com/brianfrankco
Lars,
We tried, but I didn't know there is such a contention issue.
We have two different column families. First one contains data, that are
partially used as a filter. And actual data lives in second column family.
So, outer scanner (the first one) goes through the table and filter out
keys tha
I am using 3 region servers.
Hbase version: 0.92
Cloudera Manager: 4.1
How to know the load is balanced Ted?
> Date: Sat, 22 Dec 2012 08:06:59 -0800
> Subject: Re: Hbase scalability performance
> From: yuzhih...@gmail.com
> To: user@hbase.apache.org
>
> By '3 datanodes', did you mean that you
Dear all,
Thanks for your help.
I am already using coprocessors for this table.
I already tried a program similar to it but using thrift server and my cluster
was 23 nodes on Rackspace cloud, but the same I didn't see any improved
performance. Then I was advised to use actual machines (not vi
So do you have an example of multithreading program, because I am using the
read-made Java API not thrift server, so I don't know how to write a
multithreaded program using this API.
> Date: Sat, 22 Dec 2012 08:50:56 -0800
> Subject: Re: Hbase scalability performance
> From: va...@pinterest.com
12 matches
Mail list logo
