Mailing-List: contact zookeeper-user-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
Reply-To: zookeeper-user@hadoop.apache.org
Received-SPF: pass (nike.apache.org: domain of waite.134@googlemail.com
 designates 72.14.220.152 as permitted sender)
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=googlemail.com; s=gamma;
        h=mime-version:in-reply-to:references:date:message-id:subject:from:to
         :content-type;
        b=ryHVImeVTzBxmwliXzAjcy8pnyP8nx+xYSiEt86lPa0qXJFhuKCg4CWUgyIZ+foBxz
         FwgADXjeNGCAJSmw4IBMbpsRsrfktpvWlC7gAL7v8TO5ZWTVBAoFbPVUnng7PvAf1QwN
         xKWZZR8++trRHqOB2zk6Ma85+bJpXdm8qkxgM=
MIME-Version: 1.0
In-Reply-To: <C7AA9B3A.2FE09%mahadev@yahoo-inc.com>
References: <8bc75ecf1002240340r55dc6bd2v5579f89105045506@mail.gmail.com>
	 <C7AA9B3A.2FE09%mahadev@yahoo-inc.com>
Date: Wed, 24 Feb 2010 19:09:55 +0000
Message-ID: <8bc75ecf1002241109u249df8b6paf0a7bcf1a402ff9@mail.gmail.com>
Subject: Re: is there a good pattern for leases ?
From: Martin Waite <waite.134@googlemail.com>
To: zookeeper-user@hadoop.apache.org
Content-Type: multipart/alternative; boundary=0016364d232766387904805d697d

--0016364d232766387904805d697d
Content-Type: text/plain; charset=ISO-8859-1

Hi Mahadev,

That is interesting.  All I need to do is hold the connection for the
required time of a session that created an ephemeral node.

Zookeeper is an interesting tool.

Thanks again,
Martin

On 24 February 2010 17:00, Mahadev Konar <mahadev@yahoo-inc.com> wrote:

> Hi Martin,
>  There isnt an inherent model for leases in the zookeeper library itself.
> To implement leases you will have to implement them at your application
> side
> with timeouts triggers (lease triggers) leading to session close at the
> client.
>
>
> Thanks
> mahadev
>
>
> On 2/24/10 3:40 AM, "Martin Waite" <waite.134@googlemail.com> wrote:
>
> > Hi,
> >
> > Is there a good model for implementing leases in Zookeeper ?
> >
> > What I want to achieve is for a client to create a lock, and for that
> lock
> > to disappear two minutes later - regardless of whether the client is
> still
> > connected to zk.   Like ephemeral nodes - but with a time delay.
> >
> > regards,
> > Martin
>
>

--0016364d232766387904805d697d--