If the platform has more waiting Tasks than there are Nodes available to run them, the Scheduler may now automatically request that the Compute Service provision more instances. Conversely, if there are no tasks waiting it may shut down idle Nodes to prevent unnecessary usage. This autoscaling behaviour can be controlled by a small number of settings on Worker Pools and Task Groups.
For each Task Group, the following settings in the Run Specification control the Task Group’s demand:
For each Worker Pool provisioned by YellowDog, the following properties control the Pool’s provisioning and deprovisioning of Nodes:
It is possible to use these parameters to set a number of different autoscaling strategies according to your organisation’s requirements. For more information, see the Scaling the Worker Pool topic within the Workflow section of the Implementation Guide (PDF).
Instance tags, also sometimes called instance labels, are offered by cloud providers to enable you to categorise and manage your instances. Each instance tag consists of a key:value pair. YellowDog now enables you to specify up to 15 of these tags, which can be set at the level of Source Template, Compute Requirement Template and/or Compute Requirement as required.
YellowDog will only allow you to enter tags in a format that will be accepted by all cloud providers. This means, for example, that tags may not be longer than 63 characters or contain spaces. For full details, see the Custom Instance Tags topic within the Setting Up the Portal section of the Portal User Guide (PDF).
YellowDog increasingly offers a ‘one stop shop’ for provisioning the right compute across multiple cloud provider interfaces. Version 3.4 introduces support for the following formats:
For more information, contact YellowDog.
YellowDog now provides the ability to see an overview of your account activity and status at a glance.
On logging in, you will now see the new Dashboard, which summarises the status of your last 24 hours of Compute Requirements, Work Requirements and Worker Pools, as well as your recent Usage.
Clicking on any section of one of the charts opens the relevant summary page, filtered to show the items of interest. This makes it easier than ever to manage your work within YellowDog and detect and investigate any problems as they occur.
Following on from the introduction of Worker Pool visualisation in version 3.3, it is now possible to provision Worker Pools quickly and simply from within the YellowDog Portal.
Provisioning through the Portal provides all the properties available for normal Worker Pools. More expert options such as the new autoscaling functions are hidden as standard and set to sensible defaults, but can still be accessed by advanced users.
It is not currently possible to configure Advanced Worker Pools through the Portal.
The Allowances menu introduced in version 3.3 now also enables users to create the most commonly used Allowances. The Portal provides the same funcationality as the SDK, including the ability to set reset intervals, grace periods and specific instance statuses that count towards the limit.
It is not currently possible to edit or boost an Allowance through the Portal.
It is now possible to enable your users to log into the YellowDog Portal using your organisation’s ActiveDirectory account. You can use existing ActiveDirectory options to enable access for only specific users or groups.
In order to set up external authentication, you simply:
Note that it is currently only possible to integrate one Microsoft Tenant ID with your YellowDog account. Additionally, each of your external users will need to create an ‘encryption password’ to use within YellowDog when managing Compute Requirements or Object Storage.
For full details and instructions, see the Setting up External Authentication topic within the Before You Begin section of the Implementation Guide (PDF)
The process of system setup has been streamlined by enabling you to use existing Source Templates and Compute Requirement Templates as a basis for creating new ones.
From within the details screen of any Source Template or Compute Requirement Template, You can now click the Copy option at top right to open a new Create pane with all the current values populated. Simply change the Name and any other desired settings to create your new template.
When viewing item information in the Details pane of the Object Store, selecting a text file now automatically displays its content within the Details pane.
For more information, contact YellowDog.
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