An Ambari Stack for MongoDB Cluster
Ambari stack for easily installing and managing MongoDB on HDP cluster,clusters include shard,replica,config,mongos. http://www.bigdatalab.top/archives/180
Feature
- auto install mongodb cluster ,include shard(replica set),config server,mongos server.
- support scale out ,add new shard
Assumptions
- Ambari is installed and running.
- No previous installations of Mongo DB exist. If there any, you can either remove it or rename it.
- have 3 nodes and more
Follow given step to install and manage Mongo DB using Ambari.
Connect to the VM via SSH (password hadoop for sandbox image) and start Ambari server
ssh root@ambari.machineTo deploy the Mongo DB, run below
on HDP 2.4
cd /var/lib/ambari-server/resources/stacks/HDP/2.4/services
git clone https://github.com/geniuszhe/ambari-mongodb-cluster.gitsudo service ambari-server restart
Then you can click on 'Add Service' from the 'Actions' dropdown menu in the bottom left of the Ambari dashboard:
On bottom left -> Actions -> Add service -> check MongoDB -> Next -> Next -> Next -> Deploy
maybe there is something waring
just restart the wrong service
On successful deployment you will see the MongoDB as part of Ambari stack and will be able to start/stop the service from here:
mongodb port
- mongos port 30000
- mongo config port 20000
- mongo replica port 27017,27018,27019
mongodb scale out
config param node_group.new add hosts is new group.split by ;
restart mongodb
maybe you just add one host
sometimes add host can not run successfully,replica set can not initial .
See http://serverfault.com/questions/424465/how-to-reset-mongodb-replica-set-settings
Rest Manage
- One benefit to wrapping the component in Ambari service is that you can now monitor/manage this service remotely via REST API
export SERVICE=MONGODB
export PASSWORD=admin
export AMBARI_HOST="your_ambari_hostname"
export CLUSTER="your_ambari_cluster_name"
#get service status
curl -u admin:$PASSWORD -i -H 'X-Requested-By: ambari' -X GET http://$AMBARI_HOST:8080/api/v1/clusters/$CLUSTER/services/$SERVICE
#start service
curl -u admin:$PASSWORD -i -H 'X-Requested-By: ambari' -X PUT -d '{"RequestInfo": {"context" :"Start $SERVICE via REST"}, "Body": {"ServiceInfo": {"state": "STARTED"}}}' http://$AMBARI_HOST:8080/api/v1/clusters/$CLUSTER/services/$SERVICE
#stop service
curl -u admin:$PASSWORD -i -H 'X-Requested-By: ambari' -X PUT -d '{"RequestInfo": {"context" :"Stop $SERVICE via REST"}, "Body": {"ServiceInfo": {"state": "INSTALLED"}}}' http://$AMBARI_HOST:8080/api/v1/clusters/$CLUSTER/services/$SERVICERemove Mongo service
-
To remove the MongoDB:
- Stop the service via Ambari
- Delete the service
curl -u admin:admin -i -H 'X-Requested-By: ambari' -X DELETE http://replace_with_your_ambari_hostname.com:8080/api/v1/clusters/ambari_cluster_name/services/MONGODB- Remove artifacts
rm -rf /var/lib/ambari-server/resources/stacks/HDP/2.4/services/mongo-ambari- Restart Ambari
service ambari restart