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Date: Thu, 29 Apr 2010 10:13:56 -0400
Message-ID: <n2z3361f641004290713hd9b0103ak4b27a14e620e28b2@mail.gmail.com>
Subject: Re: Embedding ZK in another application
From: Vishal K <vishalmlst@gmail.com>
To: zookeeper-user@hadoop.apache.org
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Hi Ted,

We want the application that embeds the ZK server to be running even after
the ZK server is shutdown. So we don't want to restart the application.
Also, we prefer not to use zkServer.sh/zkServer.cmd because these are OS
dependent (our application will run on Win as well as Linux). Instead, we
thought that calling QuorumPeerMain.initializeAndRun() and
QuorumPeerMain.shutdown() will suffice to start and shutdown a ZK server and
we won't have to worry about checking the OS.

Is there way to cleanly shutdown the ZK server (by invoking ZK server API)
when it is embedded in the application without actually restarting the
application process?
Thanks.
On Thu, Apr 29, 2010 at 1:54 AM, Ted Dunning <ted.dunning@gmail.com> wrote:

> Hmmm.... it isn't quite clear what you mean by restart without restarting.
>
> Why is killing the server and restarting it not an option?
>
> It is common to do a rolling restart on a ZK cluster.  Just restart one
> server at a time.  This is often used during system upgrades.
>
> On Wed, Apr 28, 2010 at 8:22 PM, Vishal K <vishalmlst@gmail.com> wrote:
>
> >
> > What is a good way to restart a ZK server (standalone and quorum) without
> > having to restart it?
> >
> > Currently, I have ZK server embedded in another java application.
>

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