list, I'd like to unsubscribe this mail list.
thanks.
--
*Ric Dong *
Dear All,
I wonder how I can set heap size for HBase and what is the suitable
portion compared to whole memory size?
And the other question is that how many memory size I need to give to
Java when I run HBase, as I sometimes got out of memory problems.
Thanks!
Yong
Hi Yong,
First, you might want to take a look at that:
http://wiki.apache.org/hadoop/Hbase/FAQ_Operations#A1 for the out of
memory issue.
Regardin which size to assign to HBase, take a look at the very short
one: http://hbase.apache.org/book/performance.html#perf.os
The more you can give it,
On Sun, Mar 10, 2013 at 11:35 PM, dong.yajun dongt...@gmail.com wrote:
list, I'd like to unsubscribe this mail list.
For how to unsubscribe, see: http://hbase.apache.org/mail-lists.html
Congrats and welcome.
On Mon, Mar 11, 2013 at 2:21 AM, Nicolas Liochon nkey...@gmail.com wrote:
Congrats, Anoop!
On Mon, Mar 11, 2013 at 5:35 AM, rajeshbabu chintaguntla
rajeshbabu.chintagun...@huawei.com wrote:
Contratulations Anoop!
Hi Hbase,
I have an issue using a mapper. I'd like to either emit a Put or a Delete
in the same map function.
I've specified Writable.class as the outputValueClass but i have a type
mismatch : expected Writable, received Put ( or Delete ).
Is there a way to deal with this issue ?
Sincerely,
G.
Put extends Mutation
Can you try using Mutation.class ?
BTW What HBase version are you using ?
Cheers
On Mon, Mar 11, 2013 at 11:42 AM, Gaetan Deputier g...@ividence.com wrote:
Hi Hbase,
I have an issue using a mapper. I'd like to either emit a Put or a Delete
in the same map function.
I have some questions for HBase DB:
How to ensure data integrity?
Are there methods ensure the integrity?
Does HBase primary key? or alternatives
Foreign key?
Referential Integrity?
How are the ACID properties to be implemented?
Ever Thanks for a possible feedback
best
Which HBase version are you using ?
Can you be a little specific about the constraint you're considering ?
Thanks
On Mon, Mar 11, 2013 at 1:24 PM, viv1d sb.h...@gmail.com wrote:
I'm looking for an example of the constraints in HBase with void check (put
p), this is indeed possible, but
On Mon, Mar 11, 2013 at 1:25 PM, viv1d sb.h...@gmail.com wrote:
I have some questions for HBase DB:
How to ensure data integrity?
Are there methods ensure the integrity?
Does HBase primary key? or alternatives
Foreign key?
Referential Integrity?
How are the ACID
Hi SB,
I have written a few blog posts about various topics.
For ACID and consistency questions this might help:
http://hadoop-hbase.blogspot.com/2012/03/acid-in-hbase.html
As a general quick introduction this might be of help:
use the last HBase Version!
I've read something about constraints and also what found
http://hbase.apache.org/apidocs/org/apache/hadoop/hbase/constraint/Constraint.html
but unfortunately I do not have a code sample to validate that such data or
the like, in which data integrity plays a role?
hiya
installed thrift and hbase. and testing php with hbase.
i tested apache thrift 0.90 and 1.0-dev with hbase 0.94.2 and hbase
0.94.5 's Hbase.thrift
$ php DemoClient.php failed like below
html
head
titleDemoClient/title
/head
body
pre
scanning tables...
found: cars
found: demo_table
Thanks for reporting this.
Mind opening a jira ?
On Mar 11, 2013, at 7:13 PM, jung moor...@gmail.com wrote:
hiya
installed thrift and hbase. and testing php with hbase.
i tested apache thrift 0.90 and 1.0-dev with hbase 0.94.2 and hbase
0.94.5 's Hbase.thrift
$ php DemoClient.php
Hi,
When we use mapreduce to dump data from a pretty large table on hbase. One
region server crash and then another. Mapreduce is deployed together with hbase.
1) From log of the region server, there are both next and multi operations
on going. Is it because there is write/read conflict that
did you closed block cache when you used mr dump?
On Mar 12, 2013 1:06 PM, Lu, Wei w...@microstrategy.com wrote:
Hi,
When we use mapreduce to dump data from a pretty large table on hbase. One
region server crash and then another. Mapreduce is deployed together with
hbase.
1) From log of
No, does block cache matter? Btw, the mr dump is a mr program we implemented
rather than the hbase tool.
Thanks
-Original Message-
From: Azuryy Yu [mailto:azury...@gmail.com]
Sent: Tuesday, March 12, 2013 1:18 PM
To: user@hbase.apache.org
Subject: Re: region server down when scanning
please read here http://hbase.apache.org/book.html (11.8.5. Block Cache) to
get some background of block cache.
On Tue, Mar 12, 2013 at 1:31 PM, Lu, Wei w...@microstrategy.com wrote:
No, does block cache matter? Btw, the mr dump is a mr program we
implemented rather than the hbase tool.
Hi,
I have a table in hbase which has more than 5GB of data, it is distributed at
101 regions at 5 regionservers.
When I execute an endpoint which is supposed to fetch a column qualifier value
using an endpoint RPC client, the region server goes down. The hbase master log
says Can't connect to
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