We just need a unique identifier for every server. If such an
identifier magically appears somehow, then I believe our protocols
will be equally happy. Now, a mechanism to assign ids would also have
to take into consideration the group scheme we have for hierarchical
quorums. To assign
Not sure if you'll find this interesting but my zk configuration
generator is available on github:
http://github.com/phunt/zkconf
zkconf.py will generate all of the configuration needed to run a
ZooKeeper ensemble. I mainly use this tool for localhost based testing,
but it can generate
can you clarify what you are asking for? are you just looking for
motivation? or are you trying to find out how to use it?
the myid file just has the unique identifier (number) of the server in
the cluster. that number is matched against the id in the configuration
file. there isn't much to
Hi Ben
Well, im just wondering why the server's own unique IP-address isn't
good enough as a valid identifyer; it strikes me to be a bit
exhausting to manually set the id for each server in the cluster. Or
maybe there is some details im not getting here :-)
Regards, Orjan
On Fri, Sep 25, 2009
A server doesn't have a unique IP address.
Each interface can have 1 or more IP addresses and there can be many
interfaces. Furthermore, an IP address can move from one machine to
another.
2009/9/25 Ørjan Horpestad orj...@gmail.com
Hi Ben
Well, im just wondering why the server's own unique
Another way of doing it, though, would be to tell each instance which IP
to use at startup.
That way the config can be identical for all users, and there can be
whatever logic is required to figure out the right IP address, in the
place where logic executing anyhow.
I do agree that maintaining
you and ted are correct. the id gives zookeeper a stable identifier to
use even if the ip address changes. if the ip address doesn't change, we
could use that, but we didn't want to make that a built in assumption.
if you really do have a rock solid ip address, you could make a wrapper
startup
Benjamin Reed wrote:
you and ted are correct. the id gives zookeeper a stable identifier to
use even if the ip address changes. if the ip address doesn't change,
we could use that, but we didn't want to make that a built in
assumption. if you really do have a rock solid ip address, you could