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ambari-mongodb-cluster's Introduction

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

Image

###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

####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

Image Image Image Image

maybe there is something waring Image just restart the wrong service Image

####On successful deployment you will see the MongoDB as part of Ambari stack and will be able to start/stop the service from here:

Image

####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 ; Image Image Image Image Image Image Image restart mongodb Image Image

maybe you just add one host Image Image Image Image Image Image

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/$CLUSTER/services/$SERVICE

Remove 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
      

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

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