Mailing-List: contact user-help@hbase.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@hbase.apache.org
Received-SPF: pass (nike.apache.org: domain of fancyerii@gmail.com designates
 209.85.215.53 as permitted sender)
MIME-Version: 1.0
In-Reply-To: 
 <CAPQV63XxmWgW9jfYv2CEuMj8qBCQsjM1V_OjxCNM5bB9htGF2A@mail.gmail.com>
References: 
 <CAFAd71URky2FNm9-NjwO4wc+jByrTAQmxzaVW6OHVW5vmZ8qAA@mail.gmail.com>
	<CAPQV63XxmWgW9jfYv2CEuMj8qBCQsjM1V_OjxCNM5bB9htGF2A@mail.gmail.com>
Date: Tue, 29 Apr 2014 08:17:17 +0800
Message-ID: 
 <CAFAd71W_MpiWPtCk4Acp3Nm5w9hqd+RT6ZwZDLaMOgpH_cZw6g@mail.gmail.com>
Subject: Re: question about threads count
From: Li Li <fancyerii@gmail.com>
To: user@hbase.apache.org
Content-Type: text/plain; charset=UTF-8

but I have many checkAndPut operations.
will use batch a better solution?

On Mon, Apr 28, 2014 at 8:01 PM, Jean-Marc Spaggiari
<jean-marc@spaggiari.org> wrote:
> Hi Li Li,
>
> Yes, threads will impact the performances. If you send all you writes with
> a single thread, a single HBase handler will take care of them, etc. HBase
> does not provide a single handler for a single client connexion. It's able
> to handle multiple threads and clients.
>
> However, it also all depends on the way you send your writes. If you send a
> single puts(<10000>) per seconds, if will not be better to send 10 000
> threads with a single put.
>
> I will recommend you to run some perf tests on your installation to find a
> good number for your configuration.
>
> JM
>
>
> 2014-04-28 6:27 GMT-04:00 Li Li <fancyerii@gmail.com>:
>
>> hi all,
>>    with the same read/write data, will threads count affect performance?
>>    e.g. I have 10,000 write request/second. I don't care the order very
>> much.
>>    how many writer threads should I use to obtain maximum throughput?
>>