Hi All,
How does zookeeper store data/files?
From reading the doc, the clients can put ACL on files/znodes to limit
read/write/create of other clients. However, I was wondering how are these
znodes stored on Zookeeper servers?
I am interested in a security aspect of zookeeper, where the
Hey Harold,
I am interested in a security aspect of zookeeper, where the clients and the
servers don't necessarily belong to the same group. If a client creates a
znode in the zookeeper? Can the person, who owns the zookeeper server, simply
look at its filesystem and read the data
Hi Harold,
Each ZooKeeper server stores updates to znodes in logfiles, and periodic
snapshots of the state of the datatree in snapshot files.
A user who has the same permissions as the server will be able to read these
files, and can therefore recover the state of the datatree without the ZK
Hi Gustavo,
Actually, in my case, we have a fully decentralized service. Something like
where you have users in a social network. Originally, we were thinking of using
a distributed consensus algorithm (e.g., Paxos) to perform some functionalities
(e.g., leader election).
Then, I read about
Hi Henry,
Does that mean for example, if I own the Zookeeper server and physical machine
and have lots of clients using this Zookeeper server, I can simply look at the
logfiles and snapshot files and see all of the information created by those
clients?
Thanks,
Harold
--- On Thu, 6/25/09,
Hi Harold,
As Henry mentioned, what acl's provide you is preventing access to znodes.
If someone has access to zookeeper's data stored on zookeeper's server
machines, they should be able to resconstruct the data and read it (using
zookeeper deserialization code).
I am not sure what kind of
Hi Harold,
Let me explain the whole concept of ZooKeeper Acls.
1) Zookeeper servers are run using some user id say X
2) zookeeper client use ZooKeeper client libaryr to create zookeeper nodes
on zookeeper servers. They could be running as user id C. They can provide
acl's to create such nodes
Thanks. That makes sense.
-Harold
--- On Thu, 6/25/09, Mahadev Konar maha...@yahoo-inc.com wrote:
From: Mahadev Konar maha...@yahoo-inc.com
Subject: Re: General Question about Zookeeper
To: zookeeper-user@hadoop.apache.org
Date: Thursday, June 25, 2009, 2:29 PM
Hi Harold,
Let me
