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YarnQueueManager

This script could do different tasks for helping you to manage your Yarn Queue using the API Possibilities :

  • Read an excel file to generate Yarn Queues configuration
  • Request Ambari API to get the actual configuration
  • Read the capacity-scheduler.xml to generate the excel file

TODO

  • Read a json file to generate Yarn Queues configuration

Usage

./YarnQueueManager.py --help
usage: YarnQueueManager [-h] [--version] [--verbose] [--print] [--dryRun]
                        [--from {ambari,xlsFile,xmlFile,jsonFile}]
                        [--to {ambari,xlsFile,jsonFile}]
                        [--envUrl {int-appli,int-tech,prod}]
                        [--ambariUser AMBARIUSER] [--xlsFile XLSFILE]
                        [--jsonFile JSONFILE] [--xmlFile XMLFILE]

Yarn Queue Manager for setting or reading queues configuration

optional arguments:
  -h, --help            show this help message and exit
  --version             print the version
  --verbose             verbose mode
  --print               print configuration
  --dryRun              Dry run only, nothing is modified
  --from {ambari,xlsFile,xmlFile,jsonFile}
                        Get capacity-scheduler configuration from
                        [ambari|xlsFile|xmlFile|jsonFile]
  --to {ambari,xlsFile,jsonFile}
                        Put capacity-scheduler configuration to
                        [ambari|xlsFile|jsonFile]
  --envUrl {int-appli,int-tech,prod}
                        Environment target for the Ambari URL [int-appli|int-
                        tech|prod] as configured in the json configuration
                        file
  --ambariUser AMBARIUSER
                        Specify an other user to use for Ambari credentials
                        than the actual connected user
  --xlsFile XLSFILE     Excel file name for get or put
  --jsonFile JSONFILE   Json file name for get or put
  --xmlFile XMLFILE     Xml file name for get ex : capacity-scheduler.xml

Examples

  • Get the actual configuration from Ambari API and print the result ./YarnQueueManager.py --from ambari -d -p --envUrl prod

  • Get the excel file configuration and print the result ./YarnQueueManager.py --from xlsFile --xlsFile xls/Queues_YARN.xlsm -d -p

  • Get the excel file configuration and write it to a json file ./YarnQueueManager.py --from xlsFile --xlsFile xls/Queues_YARN.xlsm -p --to jsonFile --jsonFile json/data.json

  • Get the excel file configuration and send it to the Ambari API ./YarnQueueManager.py --from xlsFile --xlsFile xls/Queues_YARN.xlsm -p --to ambari

  • Get the actual configuration from the capacity-scheduler.xml file and write it to a json file ./YarnQueueManager.py --from xmlFile --xmlFile xml/capacity-scheduler.xml -p --to jsonFile --jsonFile json/data.json

  • Get the actual configuration from the capacity-scheduler.xml file and write it to an excel file ./YarnQueueManager.py --from xmlFile --xmlFile xml/capacity-scheduler.xml -p --to xlsFile --xlsFile xls/Queues_YARN.xlsm

  • Get the actual configuration from the capacity-scheduler.xml file and send it to the Ambari API ./YarnQueueManager.py --from xmlFile --xmlFile xml/capacity-scheduler.xml -p --to ambari --envUrl prod

Test config

You could use this command to test the Ambari API of the Hortonworks sandbox Don't forget to update the tag and the version number

curl -u admin:admin -H "Content-Type: text/plain" -H "X-Requested-By:ambari" -X PUT http://localhost:8080/api/v1/views/CAPACITY-SCHEDULER/versions/1.0.0/instances/AUTO_CS_INSTANCE/resources/scheduler/configuration --data '

{               
  "Clusters": {
    "desired_config": [
      {                                                               
        "service_config_version_note": "Updated by YarnQueueManager", 
        "tag": "version1486849468669", 
        "type": "capacity-scheduler", 
        "version": 7, 
        "properties": {                                       
        "yarn.scheduler.capacity.root.accessible-node-labels": "*",
        "yarn.scheduler.capacity.root.acl_administer_queue": "*",
        "yarn.scheduler.capacity.root.default.acl_administer_jobs": "*",
        "yarn.scheduler.capacity.root.default.capacity": "100",
        "yarn.scheduler.capacity.root.default.user-limit-factor": "1",
        "yarn.scheduler.capacity.root.queues": "default",
        "yarn.scheduler.capacity.root.capacity": "100",
        "yarn.scheduler.capacity.root.default.acl_submit_applications": "*",
        "yarn.scheduler.capacity.root.default.maximum-capacity": "100",
        "yarn.scheduler.capacity.root.default.maximum-am-resource-percent": "0.75",
        "yarn.scheduler.capacity.root.default.state": "RUNNING",
        "yarn.scheduler.capacity.resource-calculator": "org.apache.hadoop.yarn.util.resource.DefaultResourceCalculator",
        "yarn.scheduler.capacity.default.minimum-user-limit-percent": "100",
        "yarn.scheduler.capacity.maximum-am-resource-percent": "0.5",
        "yarn.scheduler.capacity.maximum-applications": "10000",        
        "yarn.scheduler.capacity.node-locality-delay": "40"
        }
      }
    ]
  }
}

Author

Eric Deleforterie