Ambari stack for easily installing and managing MongoDB on HDP cluster,clusters include shard,replica,config,mongos. http:https://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 [email protected]

####To 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.git

sudo 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:https://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:$PASSWORD -i -H 'X-Requested-By: ambari' -X GET http:https://$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 $SERVICE via REST"}, "Body": {"ServiceInfo": {"state": "STARTED"}}}' http:https://$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 $SERVICE via REST"}, "Body": {"ServiceInfo": {"state": "INSTALLED"}}}' http:https://$AMBARI_HOST:8080/api/v1/clusters/$CLUSTER/services/$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:https://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
    

###References: https://github.com/abajwa-hw/ntpd-stack