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From kishore g <g.kish...@gmail.com>
Subject Re: Apache Helix
Date Thu, 06 Mar 2014 21:53:15 GMT
+ user




On Thu, Mar 6, 2014 at 5:24 AM, Leonard Kramer <
leonard.alexander.kramer@googlemail.com> wrote:

> Hi Mr. Kishore,
>
> my name is Leonard Kramer and I've found your mail-address in the Apache
> Helix mailing list. I'm currently evaluating Apache Helix for the
> cluster-management of ZooKeeper itself. The ultimate goal is to create an
> autonomous zookeeper-service with its own migration-strategies and self
> repair functions.
>
> For the monitoring and reaction to outages of nodes I want to use Apache
> Helix, because it already uses ZooKeeper as its primary coordination &
> data-store. In the mailing-list you have answered a thread for the
> differences between norbert and helix and mentioned that "Failure: When a
> node fails, you have multiple options [...] #3 Start a new node and assign
> the partitions to that new node. [...] #3 feature is work in progress and
> is possible if the deployment system is flexible and allows starting up
> process dynamically".
> While studying Helix I couldn't find any more information regarding this
> feature. All I could find was the blog post "http://engineering.linkedin.
> com/cluster-management/auto-scaling-apache-helix-and-apache-yarn", which
> I think is too complex for my specific use-case.
>
> Can you please provide me with more information regarding the self repair
> of a helix cluster? Is the helix-controller capable of invoking logic for
> starting additional nodes? My plan is to use Jclouds in addition to the
> cloud-controller and start a new node when the helix-controller notices a
> node's failure. Is this possible?
>
> Thank you for your help and have nice day.
> Greetings from Germany
>
> Leo
>

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