Yes, I have looked them.
I was looking for examples where I can have my own split function which
overrides the behavious of DBInputSplit. By default, it feches the rows from
the table and splits them and each split having different number of rows.
This is what I want to control, I need splits to
You can find examples on how to use DBInputFormat on the internet. And if
you want a sample input format, just read any of the existing ones...
Amandeep Khurana
Computer Science Graduate Student
University of California, Santa Cruz
On Fri, Feb 12, 2010 at 10:39 PM, Gaurav Vashishth wrote:
>
>
Ok thanks for the reply. Do you have any sample code which can demonstrate
how to do this?
-Gaurav
Amandeep Khurana wrote:
>
> DBInputFormat splits the count() from the RDBMS table into the number of
> mappers. If you want to split using your own scheme, you'll have to write
> your own input f
Andy,
Yeah, I've copied the jars down, that's how I'm doing it too. Ok, I
didn't realize it would pick up the base log4j.properties file, but does
make sense.
Thanks!
Josh Patterson
TVA
-Original Message-
From: Andrew Purtell [mailto:apurt...@apache.org]
Sent: Friday, February 12, 2010
I have always just merged the Stargate contrib with core for deployment:
Copy the Stargate jar to HBase ./
Copy the jars from ./contrib/stargate/lib to ./lib
Then use ./bin/hbase-daemon.sh or ./bin/hbase to start Stargate.
It will pick up log4j.properties in ./conf.
Doing otherwise seems like
Comments also inline...
On 13 February 2010 03:15, Jean-Daniel Cryans wrote:
> Inline.
>
> J-D
>
> On Fri, Feb 12, 2010 at 5:38 AM, Muhammad Mudassar >wrote:
>
> > Hi
> > I have hbase table with 3 column families and some number of rows stored
> in
> > it here I want to ask that how I can searc
DBInputFormat splits the count() from the RDBMS table into the number of
mappers. If you want to split using your own scheme, you'll have to write
your own input format or tweak the existing one.
Amandeep Khurana
Computer Science Graduate Student
University of California, Santa Cruz
On Fri, Feb
On Fri, Feb 12, 2010 at 2:17 AM, Bruno Dumon wrote:
> On Thu, Feb 11, 2010 at 7:41 PM, Stack wrote:
>> On Wed, Feb 10, 2010 at 7:16 AM, Bruno Dumon wrote:
>>> Hi,
>>>
>>> I would like a filter that accepts rows as long as the first X bytes
>>> of the row key are less than or equal to a certain b
On Fri, Feb 12, 2010 at 4:32 AM, Gaurav Vashishth wrote:
>
> I have the Map Reduce function whose job is to process the database , MySql,
> and give us some output. For this purpose, I have created the map reduce
> fucntion and have used the DBInputFormat, but Im confused in how the
> JobTracker w
In general when determining the number of ZooKeeper serving nodes to
deploy (the size of an ensemble) you need to think in terms of
reliability, and not performance.
Reliability:
A single ZooKeeper server (standalone) is essentially a coordinator with
no reliability (a single serving node fai
If you have 1 cluster and it's very small, as you point out HBase isn't
intense on ZK (yet) so using only 1 ZK is ok.
Another setup like we have here at stumbleupon is multiple clusters using
the same quorum. In this case it makes sense to get 3 or 5 nodes and in our
case the hardware is beefy eno
Inline.
J-D
On Fri, Feb 12, 2010 at 5:38 AM, Muhammad Mudassar wrote:
> Hi
> I have hbase table with 3 column families and some number of rows stored in
> it here I want to ask that how I can search values from the table (like
> select name from employee where age='35': query of sql ) using api
I cant seem to find the stargate REST server log4j.properties file ---
how would I find or set that up?
Josh Patterson
TVA
Hi
I have hbase table with 3 column families and some number of rows stored in
it here I want to ask that how I can search values from the table (like
select name from employee where age='35': query of sql ) using api in java
some code would be helpful.
i am having problem to define row keys curent
Hey all,
I was asking about minimum number of zookeepers and usually everybody was
saying odd number >=3. Are there any reasons for this. Have you encounter
any problems from single zookeeper? As far as know already hbase is doing
very very little operations using zookeeper so load on it is insign
I have the Map Reduce function whose job is to process the database , MySql,
and give us some output. For this purpose, I have created the map reduce
fucntion and have used the DBInputFormat, but Im confused in how the
JobTracker will produce the splits here.
I want that first 'n' records from th
Ryan,
I have setup the custer as suggested by you. Now I have Master,namemode and
zookeeper on same machine and have 8 region servers running as data nodes
and with this configuration I was able to get the insertion speed of around
18K records/sec. Though Im still using 4GB ram, will upgrade it
On Thu, Feb 11, 2010 at 7:41 PM, Stack wrote:
> On Wed, Feb 10, 2010 at 7:16 AM, Bruno Dumon wrote:
>> Hi,
>>
>> I would like a filter that accepts rows as long as the first X bytes
>> of the row key are less than or equal to a certain byte array.
>>
>
> Would an inclusivestoprow filter work for
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