apache-zookeeper

We have a standalone zookeeper setup on a dev machine. It works fine for every other dev machine except this one testdev machine. We get this error over and over again when trying to connect to zookeeper through testdev: 2012-11-09 14:06:53,909 - INFO [main-SendThread(zk01.dev.bunchball.net:2181):ClientCnxn$SendThread@947] - Socket connection established to zk01.dev.bunchball.net/192.168.8.58:2181, initiating session 2012-11-09 14:06:53,911 - INFO [main-SendThread(zk01.dev.bunchball.net:2181):ClientCnxn$SendThread@1183] - Unable to read additional data from server sessionid 0x0, likely server

Are there any well documented use cases of Apache ZooKeeper being used to distribute configuration of Java applications, and in particular Spring services? Like many users of cloud services I have a requirement to change the configuration of a variable amount of Java services, preferably at run-time without needing to restart the services. UPDATE Eventually I ended up writing something that would load a ZooKeeper node as a properties file, and create a ResourcePropertySource and insert it into a Spring context. Note that this will not reflect changes in the ZooKeeper node after the context has

ZooKeeper is a highly available coordination service for data centers. It originated in the Hadoop project. One can implement locking, fail over, leader election, group membership and other coordination issues on top of it. Are there any alternatives to ZooKeeper? (free software of course) I've looked extensively at Zookeeper/ Curator , Eureka , etcd , and consul. Zookeeper/Curator and Eureka are in many ways the most polished and easiest to integrate if you are in the Java world. Etcd is pretty cool and very flexible, but It is really just a HA key store so you would have to write a lot of

I've been looking at Zookeeper recently and wondered whether anybody was using it currently and what they were specifically using it for storing. The most common use case is for configuration information, but what kind of data and how much data are you storing? The Apache CXF implementation of DOSGi uses zookeeper for its service registration repository. Individual containers have a distributed software (dsw) bundle that listens for all service events and when a service status changes that has a property indicating distribution. The dsw talks to the discovery bundle which, in the reference

I have to do the following: I have to deploy Solr on 2 servers/nodes. Deploy Zookeeper on another server. Upload a custom config to Zookeeper Create a custom collection with 2 shards and 2 replicas Version of Solr 7.4.0 & Zookeeper: 3.4.12 I have done the following: Set Up Zookeeper: Created a Zookeeper data folder & made a zoo.conf & put the dataDir there. Started zookeeper using ./zkServer.sh start Set up Solr: Started Solr using: ./solr start -cloud -s /home/demo/LocalFolder/Downloads/SolrHome -p 8987 -z localhost:2181 Trying to upload config in Zookeeper using: ./solr create -c

So I'm trying to to get started with Accumulo. I installed Hadoop and it runs w/o problems but when I try to start Zookeeper I get: JMX enabled by default Using config: /opt/zookeeper/bin/../conf/zoo.cfg -n Starting zookeeper ... /opt/zookeeper/bin/zkServer.sh: line 103: /tmp/zookeeper/zookeeper_server.pid: No such file or directory FAILED TO WRITE PID I've looked around can't seem to find an answer. I have had the same problem. In my case was useful to start Zookeeper and directly specify a configuration file: /bin/zkServer.sh start conf/zoo.conf I have never heard of zookeeper, but it could

Hi guys I am trying to follow the quick start of HBase and start an HBase on the local file system( without using HDFS ) However when I start the shell using ./hbase shell and type "status" I get zookeeper error ?! hbase(main):001:0> status 14/01/07 12:44:48 ERROR zookeeper.RecoverableZooKeeper: ZooKeeper exists failed after 3 retries 14/01/07 12:44:48 WARN zookeeper.ZKUtil: hconnection Unable to set watcher on znode (/hbase/hbaseid) org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/hbaseid //......... ect ..... Here is my config file (