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zookeeper-recipes-commands.md

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Zookeeper Recipes and Commands

Building Zookeeper

# Replace branch name with the branch you want to build.
$ git clone -b branch-3.5.5 https://github.com/apache/zookeeper
$ cd zookeeper
$ mvn package -DskipTests
$ mvn install -DskipTests

Using Zookeeper

Enable SSL/TLS

  1. Rename the config/zoo_sample.cfg to config/zoo.cfg.

  2. Create a server_envs.sh file with the server environment variables containing:

    export SERVER_JVMFLAGS="
  -Dzookeeper.serverCnxnFactory=org.apache.zookeeper.server.NettyServerCnxnFactory
  -Dzookeeper.ssl.keyStore.location=/path/to/pravega/config/server.keystore.jks 
  -Dzookeeper.ssl.keyStore.password=1111_aaaa 
  -Dzookeeper.ssl.trustStore.location=/path/to/pravega/config/client.truststore.jks
  -Dzookeeper.ssl.trustStore.password=1111_aaaa"

  3. Execute $ source server_envs.sh.

  4. Edit the conf/zoo.cfg by adding secureClientPort=2281

  5. Create a client_envs.sh file containing:

    export CLIENT_JVMFLAGS="
   -Dzookeeper.clientCnxnSocket=org.apache.zookeeper.ClientCnxnSocketNetty 
   -Dzookeeper.client.secure=true 
   -Dzookeeper.ssl.keyStore.location=/path/to/pravega/config/server.keystore.jks 
   -Dzookeeper.ssl.keyStore.password=1111_aaaa 
   -Dzookeeper.ssl.trustStore.location=/path/to/pravega/config/client.truststore.jks 
   -Dzookeeper.ssl.trustStore.password=1111_aaaa"

  6. Execute $ source client_envs.sh on the client side.

Starting/Stopping the Server and the CLI client

$ bin/zkServer.sh start
$ bin/zkCli.sh -server localhost:2281

# Verify client is able to talk to the server CLI is able to communicate with the server.
$