so you have two problems going on. both have the same root:
zookeeper_init returns before a connection and session is established
with zookeeper, so you will not be able to fill in myid until a
connection is made. you can do something with a mutex in the watcher to
wait for a connection, or you
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 coul
In the FAQ, there is a question
4. Is there an easy way to expire a session for testing?
And the last part of the answer reads:
In the case of testing we want to cause a problem, so to explicitly
expire a session an application connects to ZooKeeper, saves the
session id and
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
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 th
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
> Hi Ben
>
> Well, im just wondering why the server's own unique IP-address isn
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
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 sa
Hi!
Can someone pin-point me to a site (or please explain ) where I can
read about the use of the myid-file for configuring the id of the
ZooKeeper servers?
I'm sure there is a good reason for using this approach, but it is the
first time I have come over this type of non-automatic way for
administ
