apache-zookeeper

Is there an embedded zookeeper so that we could use it in unit testing? It can be shipped with the test and run out of the box. Maybe we could mock some service and register to the embedded zookeeper The Curator framework has TestingServer and TestingCluster classes (see https://github.com/Netflix/curator/wiki/Utilities ) that are in a separate maven artifact (curator-test - see the Maven/Artifacts section of https://github.com/Netflix/curator/wiki ). They're pretty self explanatory, or you can download the curator code base and see how they're used internally in their own test cases. We've

I have three servers in my quorum. They are running ZooKeeper 3.4.5. Two of them appear to be running fine based on the output from mntr . One of them was restarted a couple days ago due to a deploy, and since then has not been able to join the quorum. Some lines in the logs that stick out are: 2014-03-03 18:44:40,995 [myid:1] - INFO [main:QuorumPeer@429] - currentEpoch not found! Creating with a reasonable default of 0. This should only happen when you are upgrading your installation and: 2014-03-03 18:44:41,233 [myid:1] - INFO [QuorumPeer[myid=1]/0.0.0.0:2181:QuorumCnxManager@190] - Have

I have 3 node(nodes0,node1,node2) Kafka cluster(broker0, broker1, broker2) with replication factor 2 and Zookeeper(using zookeeper packaged with Kafka tar) running on a different node (node 4). I had started broker 0 after starting zookeper and then remaining nodes. It is seen in broker 0 logs that it is reading __consumer_offsets and seems they are stored on broker 0. Below are sample logs: Kafka Version: kafka_2.10-0.10.2.0 2017-06-30 10:50:47,381] INFO [GroupCoordinator 0]: Loading group metadata for console-consumer-85124 with generation 2 (kafka.coordinator.GroupCoordinator) [2017-06-30

I am trying to connect to a VM with Accumulo. The problem is, I can't get it hooked up in Java. I can see the webpage Apache throws up, but I can't get it to work with code. I think this is a lack of knowledge issue rather than a real problem, but I can't find documentation on it. All the examples use localhost as the zooServer name, this obviously doesn't work for me. So, here is my code: String instanceName = "accumulo-02" String zooServers = "192.168.56.5, accumulo-02.localdomain:9997" ZooKeeperInstance inst = new ZooKeeperInstance(instanceName, zooServers) .... The rest isn't important

This is the code mentioned on kazoo readthedocs election=zk.Election("/electionpath", "my-identifier") what are the input arguments to be passed to make particular node as leader? (i.e what does /electionpath and my-identifier refers here?) In Short: "/electionpath" is your path of interest where you will be creating nodes, adding data and watching nodes using dataWatchers. "my-identifier" is identifier to the non re-entrant lock which will be used to verify who is the leader out of the contenders and allow writes only to leader. In Detail: To simplify it explaining first why there should be