Mailing-List: contact hbase-user-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
Reply-To: hbase-user@hadoop.apache.org
Received-SPF: pass (athena.apache.org: domain of michael.dagaev@gmail.com
 designates 72.14.220.155 as permitted sender)
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=message-id:date:from:to:subject:mime-version:content-type
         :content-transfer-encoding:content-disposition;
        b=vElg5Pxjeh+LPehmqYPTG6OQ4RNsV5yHobKfmhorFoJOOwlTOSHezcEmYxzp5wDZ/o
         h0yXxc9ehcd9ogerAnQfUqsL1PON9DkLgrkNbsylZDt7OdY0OKp+H89tiPU0cJINGCB4
         BdGMrERO1IPfpuVLVws0sSeP4Zyks3j+w1jGw=
Message-ID: <2f81e00810220326n757eea18s54569e1c313b2751@mail.gmail.com>
Date: Wed, 22 Oct 2008 12:26:49 +0200
From: "Michael Dagaev" <michael.dagaev@gmail.com>
To: hbase-user@hadoop.apache.org
Subject: Question on Connection Pooling
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

Hi, All

    As I understand, HConnectionManager class pools table server
connections (HBASE_INSTANCES) but does not pool connections to the
master server. Is it correct? I guess it is implemented this way since
the master serves many clients and may run of connections.  On the
other hand, what if there are only few clients ? Doesn't it make sense
to make this behavior configurable ?

     I have noticed that the table server connection pool does not
have min. and max. number of connections. Don't you think it would be
nice to add it?

Thank you for your cooperation,
M.