decrease cache size (say, 1000) and increase batch or just set it as default
if #qualifiers in a row is not too many.
-Original Message-
From: ch huang [mailto:justlo...@gmail.com]
Sent: Wednesday, August 07, 2013 5:18 PM
To: user@hbase.apache.org
Subject: issue about search speed and
ble is 1TB size, and you
> have 10 RS and want 12 regions per server, you can setup this to
> 1TB/(10x12) and you will get at least all those regions (and even a
> bit more).
>
> JM
>
> 2013/3/25 Lu, Wei :
>> We are facing big region size but small region number of a tab
We are facing big region size but small region number of a table. 10 region
servers, each has only one region with size over 10G, map slot of each task
tracker is 12. We are planning to ‘split’ start/stop key range of large table
regions for more map tasks, so that we can better make usage of m
some background of block cache.
On Tue, Mar 12, 2013 at 1:31 PM, Lu, Wei wrote:
> 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
using mapreduce
did you closed block cache when you used mr dump？
On Mar 12, 2013 1:06 PM, "Lu, Wei" 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
>
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 th
Hi, all,
When I scan any table, I got:
13/02/20 05:16:45 INFO ipc.HBaseRPC: Server at Rs1/10.20.118.3:60020 could not
be reached after 1 tries, giving up.
...
ERROR: org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed after
attempts=7, exceptions:
...
What I observe:
1
By the way, the hbase version I am using is 0.92.1-cdh4.0.1
From: Lu, Wei
Sent: Wednesday, February 20, 2013 1:28 PM
To: user@hbase.apache.org
Subject: region server of -ROOT- table is dead, but not reassigned
Hi, all,
When I scan any table, I got:
13/02/20 05:16:45 INFO ipc.HBaseRPC: Server
Hi, all,
When I scan any table, I got:
13/02/20 05:16:45 INFO ipc.HBaseRPC: Server at Rs1/10.20.118.3:60020 could not
be reached after 1 tries, giving up.
...
ERROR: org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed after
attempts=7, exceptions:
...
What I observe:
1) -ROO
Hi,
When I use C++ to call 0.92 HBase java APIs, it failed to log in. I tried
similar operation by directly using Java Api, and they succeed.
So, is there any difference between using java api through JNI with directly
calling the same java api??
Can anyone help me out? Thank you very much.
He
. also look at your zookeeper logs
to see whats going on..
i tried bunch of things, so not sure what worked. but what i did was
increase zookeeper connections and timeout limits and that did the trick
IIRC.
thanks
On Wed, Feb 22, 2012 at 10:55 PM, Lu, Wei wrote:
> Hi,
>
> I met wit
Hi,
I met with a weird problem when using HBase. There are 3 machines: 1 master and
2 region servers (wlu-rs1/10.27.17.251 and wlu-rs2/10.27.16.11).
But when I use "status 'detailed'" to see region servers' status, it show there
are three server, and one server appears twice (exactly same).
3 l
Hi,
I met with a weird problem when using HBase. There are 3 machines: 1 master and
2 region servers (wlu-rs1/10.27.17.251 and wlu-rs2/10.27.16.11).
But when I use "status 'detailed'" to see region servers' status, it show there
are three server, and one server appears twice (exactly same).
3 l
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