Curator is excellent at this. Additionally, zk_watcher is a simple way of doing this as well.
http://pypi.python.org/pypi/zk_watcher (for what its worth, we do almost exactly this at Nextdoor... every server we have runs this daemon, and they register various bits of data about themselves in a Zookeeper path. We then leverage this path with other tools for getting full server-lists.) --Matt On Jan 15, 2013, at 10:33 AM, Jordan Zimmerman <[email protected]> wrote: > FYI. Curator provides a Service Discovery implementation: > > https://github.com/Netflix/curator/wiki/Service-Discovery > > ==================== > Jordan Zimmerman > > On Jan 15, 2013, at 10:19 AM, Yasin <[email protected]> wrote: > > Hi all, > > I am relatively new to Zookeeper. I run it as a single standalone server on > my laptop and tried it with 3 server-cluster on a private cloud. And tried > some sample codes. > > I want to develop a service acts like a DNS. It will basically keep IPs of > thousands of host along with some additional information such as Rack ID. > Let's call this service zkDNS. I am at the design phase. I want design the > system as good as possible so that I will not have to make so too much > changes on the way. I have a couple of questions: > > 1- Can I run zkDNS and ZooKeeper on the same physical machines at the same > time? This will give me localization advantage. zkDNS process will connect > to ZooKeeper service residing on the same machine. There will not be network > traffic. > > 2- zkDNS will store maybe hundreds of thousands of IP addresses and will > serve these hosts asking for some information about other hosts. How should > I implement this schema? Should I keep IP addresses in ArrayLists and create > a znode on Zookeeper for every IP address? This does not seem to be a good > design. I will need to search the zkDNS host list for every request. > Therefore I want to keep IP addresses in sorted ordered. > > How can I start this project by taking advantages of ZooKeeper service? > I need a starting point/approach the problem. > Any idea/comment/link is appreciated. > > Best > > Yasin > > > > -- > View this message in context: > http://zookeeper-user.578899.n2.nabble.com/Implementing-DNS-like-service-using-ZooKeeper-tp7578405.html > Sent from the zookeeper-user mailing list archive at Nabble.com.
