jiazhai/geo-tutorial.md

## geo-tutorial.md

      
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              geo-tutorial.md
            
          
    This is based on https://gist.github.com/jiazhai/1cd48ab6c8f6c3012c895df9746799b5
0. prepare a docker image

1， build it from source code:
mvn install -DskipTests -Pdocker   

2， or use docker pull
docker pull apachepulsar/pulsar-test-latest-version 

start all nodes：

docker-compose up

1. start some nodes working as client in each cluster.


use get network alis for your docker instances:

docker network ls


start a client, and config the broker address:
a. start a docker instance

docker run --name client-beijing  -it --rm  --network geodemo_pulsar apachepulsar/pulsar-test-latest-version:latest /bin/bash

b. in this docker instance run this command to replace the broker address in client.conf
$ sed -i "s/localhost/broker-beijing/g" conf/client.conf

c. do the same a.b.steps for shanghai, and guangzhou cluster:
docker run --name client-shanghai  -it --rm  --network geodemo_pulsar apachepulsar/pulsar-test-latest-version:latest /bin/bash
sed -i "s/localhost/broker-shanghai/g" conf/client.conf

docker run --name client-guangzhou  -it --rm  --network geodemo_pulsar apachepulsar/pulsar-test-latest-version:latest /bin/bash
sed -i "s/localhost/broker-guangzhou/g" conf/client.conf

2. create tenants and namespace

choose 1 instance from above client-beijing / client-shanghai / client-guangzhou to create tenants an namespace.
bin/pulsar-admin tenants create my-tenant  --allowed-clusters beijing,shanghai,guangzhou
bin/pulsar-admin namespaces create my-tenant/my-namespace --clusters beijing,shanghai,guangzhou
3. verify messages send and receive.

a. in both client-shanghai and client-guangzhou, create a subscription for the test topic, they will wait receive messages from client-beijing
in client-shanghai
bin/pulsar-client consume -s "sub-shanghai" my-tenant/my-namespace/t1 -n 0

in client-guangzhou
bin/pulsar-client consume -s "sub-guangzhou" my-tenant/my-namespace/t1 -n 0

b. in client-beijing, produce message to the topic
bin/pulsar-client produce  my-tenant/my-namespace/t1  --messages "hello-from-beijing-1" -n 10