Mailing-List: contact user-help@zookeeper.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@zookeeper.apache.org
Received-SPF: pass (athena.apache.org: domain of arindam.mukerjee@gmail.com
 designates 209.85.192.169 as permitted sender)
MIME-Version: 1.0
Date: Mon, 11 Nov 2013 21:49:04 +0530
Message-ID: 
 <CAFXEtCAvxadk7B+zajG3Ua4LMRMpkNO0D9KpqRDxj4VbqtDcsg@mail.gmail.com>
Subject: Staggered start of nodes in an ensemble
From: Arindam Mukherjee <arindam.mukerjee@gmail.com>
To: user@zookeeper.apache.org
Content-Type: text/plain; charset=ISO-8859-1

Of late I have been bombarding this list with questions and am getting
a little frustrated at my lack of understanding of ZooKeeper. I am up
against deadlines that look infeasible now. :(

Anyway, having majorly failed to get going with 3.5.0 (you might see a
question earlier today), I decided, for the purposes of a PoC to
create a static 3.4.6 configuration. Say, create max 3 VMs, of which 2
are always up. Initially 1 and 2 would be up. I would be listing 3
servers in the config - server.1 through server.3.

I brought up the servers on 1 and 2 in that order using "zkServer.sh
start-foreground". However they failed to connect and form a quorum
and the foreground server process showed an increasing timeout. Then I
brought up 3 at which point 2 and 3 were able to connect.

Next I started zkCli.sh from 1 - it failed to connect to any box.
However the ones on 2 and 3 connected neatly. I am at a little loss to
explain this. Need help.

Thanks.
Arindam