Zookeeper 3.4.13 - Back and restore a zookeeper cluster

[Debraj Manna <su...@gmail.com>]

Hi

Can someone let me know how can I back up and restore a zookeeper ensemble
of 3 nodes?

I am looking for back up and restore by shutting down all nodes in the
ensemble.

Zookeeper Version - 3.4.13

Thanks,

Re: Zookeeper 3.4.13 - Back and restore a zookeeper cluster

[Jordan Zimmerman <jo...@jordanzimmerman.com>]

FYI - backup and restore of ZooKeeper is not trivial. I wrote a post about this a while back:

Apache ZooKeeper Backup, a Treatise - https://www.elastic.co/blog/zookeeper-backup-a-treatise

-Jordan

> On Mar 1, 2019, at 11:44 AM, Debraj Manna <su...@gmail.com> wrote:
> 
> Hi
> 
> Can someone let me know how can I back up and restore a zookeeper ensemble
> of 3 nodes?
> 
> I am looking for back up and restore by shutting down all nodes in the
> ensemble.
> 
> Zookeeper Version - 3.4.13
> 
> Thanks,

AW: Zookeeper 3.4.13 - Back and restore a zookeeper cluster

[Ar...@dlr.de]

This can be trivial, depending on what kind of metadata you store in ZK.
I store only UTF-8 encoded strings and numbers, therefore backup is just a simply dump of all keys/values into a local JSON-files.
This can be restored back into a fresh ZK cluster at any time in no time.
It's just a 20 line Python script or so.

Cheers
Arne

> -----Ursprüngliche Nachricht-----
> Von: Debraj Manna [mailto:subharaj.manna@gmail.com]
> Gesendet: Freitag, 1. März 2019 17:45
> An: user@zookeeper.apache.org
> Betreff: Zookeeper 3.4.13 - Back and restore a zookeeper cluster
> 
> Hi
> 
> Can someone let me know how can I back up and restore a zookeeper
> ensemble
> of 3 nodes?
> 
> I am looking for back up and restore by shutting down all nodes in the
> ensemble.
> 
> Zookeeper Version - 3.4.13
> 
> Thanks,