Configuring batch retention

The default retention time for tasks in Azure Batch is 7 days unless the compute node is removed or lost. We can, however, set the required retention time while adding a job.

Here is an example using REST APIs. The retentionTime needs to be set in the request body as shown:

POST account.region.batch.azure.com/jobs/jobId/tasks?api-version=2021-06-01.14.0

Examine the following request body:

{
  "id": "jobId",
  "priority": 100,
  "jobManagerTask": {
    "id": "taskId",
    "commandLine": "test.exe",
    "constraints": {
      "retentionTime": "PT1H"
   }
}

PT1H specifies 1 hour and uses the ISO_8601 format. You can learn more about the format here: https://en.wikipedia.org/wiki/ISO_8601#Durations.

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