apache-zookeeper

问题 I am building a mesos cluster from scratch (using Vagrant, which is not relevant for this issue). OS: Ubuntu 16.04 (trusty) Setup: Master -> Runs ZooKeeper, Mesos-master, Marathon and Chronos Slave -> Runs Mesos-slave This is my provisioning script for the master node https://github.com/zeitgeist2018/infrastructure/blob/fix-marathon/provision/scripts/install-master.sh. I have managed to register de slave into Mesos, install Marathon and Chronos frameworks, and run scheduled jobs in Chronos

问题 I followed this link to install Kafka + Zookeeper. It all works well, yet I am setting up Kafka + Zookeeper on 2 servers. I have setup the kafka/config/server.properties to have: Server 1: broker.id = 0 Server 1: zookeeper.connect = localhost:2181,99.99.99.91:2181 Server 2: broker.id = 1 Server 2: zookeeper.connect = localhost:2181,99.99.99.92:2181 I am wondering the follwing: When I publish a topic, does it go to both Instances, or just the server it's loaded on? In order to use multiple

问题 I'm pulling ZooKeeper into a project for some concurrency management, and the first thing I tried was something that, to me, was quite obvious (using the zkpython binding): zh = zookeeper.init('localhost:2181') zookeeper.create(zh, '/path/to/a/node', '', [ZOO_OPEN_ACL_UNSAFE]) And I got back a NoNodeException for my trouble. After reflecting on this and reviewing the docs (such as they are), I've been unable to find a way to do the equivalent of a mkdir -p where ZooKeeper will create the

问题 I'm unable to create zookeeper.log under the directory i had specified in the log4j.properties. I'm not sure what's going wrong, Can someone please direct me what should I be looking into to solve this issue? Please find below the log4j.properties file. zookeeper.root.logger= INFO, ROLLINGFILE zookeeper.console.threshold= INFO zookeeper.log.dir= /usr/local/zookeeper-3.4.5-cdh5.3.1/logs zookeeper.log.file= zookeeper.log zookeeper.log.threshold= INFO zookeeper.log.maxfilesize= 256MB zookeeper

问题 I'm unable to create zookeeper.log under the directory i had specified in the log4j.properties. I'm not sure what's going wrong, Can someone please direct me what should I be looking into to solve this issue? Please find below the log4j.properties file. zookeeper.root.logger= INFO, ROLLINGFILE zookeeper.console.threshold= INFO zookeeper.log.dir= /usr/local/zookeeper-3.4.5-cdh5.3.1/logs zookeeper.log.file= zookeeper.log zookeeper.log.threshold= INFO zookeeper.log.maxfilesize= 256MB zookeeper

问题 I have a set up of kerberized Zookeeper and kerberized Kafka which works fine with zookeeper.set.acl set to false. When I try to start Kafka with the parameter set to true, I get this in the zookeeper logs: Nov 12 13:36:26 <zk host> docker:zookeeper_corelinux_<zk host>[1195]: [2019-11-12 13:36:26,625] INFO Client attempting to establish new session at /<kafka ip>:54272 (org.apache.zookeeper.server.ZooKeeperServer) Nov 12 13:36:26 <zk host> docker:zookeeper_corelinux_<zk host>[1195]: [2019-11

问题 I'm using Solr 6 and I'm trying to populate it. Here's the main scala I put in place : object testChildDocToSolr { def main(args: Array[String]): Unit = { setProperty("hadoop.home.dir", "c:\\winutils\\") val sparkSession = SparkSession.builder() .appName("spark-solr-tester") .master("local") .config("spark.ui.enabled", "false") .config("spark.default.parallelism", "1") .getOrCreate() val sc = sparkSession.sparkContext val collectionName = "testChildDocument" val testDf = sparkSession.read

问题 I'm using Solr 6 and I'm trying to populate it. Here's the main scala I put in place : object testChildDocToSolr { def main(args: Array[String]): Unit = { setProperty("hadoop.home.dir", "c:\\winutils\\") val sparkSession = SparkSession.builder() .appName("spark-solr-tester") .master("local") .config("spark.ui.enabled", "false") .config("spark.default.parallelism", "1") .getOrCreate() val sc = sparkSession.sparkContext val collectionName = "testChildDocument" val testDf = sparkSession.read

问题 Im workign to install Kafa and Zookeeper. I have already run the Zookeeper and it is currently running. I set up everything as in [https://dzone.com/articles/running-apache-kafka-on-windows-os] when i finally run in my cmd, .\bin\windows\kafka-server-start.bat .\config\server.properties there is no output, it just moves shows the next command line started. Please help me out. 回答1: Finally I find someone with with the same issue I had! Zookeeper running, but kafka not doing anything at all

问题 I am not able to find information regarding automatic expiration of persistent node in zookeeper. Is persistent node only expire when zookeeper server is shut down or it can expired before before that ?. if yes, what are the possible reason. Here I am asking about automatic expiration not manually deleting the node. 回答1: Persistent ZK nodes are saved on disk and preserved on service restarts and only deleted by request. Ephemeral nodes are deleted automatically on client disconnection. 来源：