Share via

Values in ISO8601 Duration format are failed to get parsed into TimeSpan

Andrey Semenov 20 Reputation points Microsoft Employee
2025-10-21T19:46:17.0366667+00:00

Hello

I've followed the documentation on Microsoft.ServiceFabric/clusters/applications resource to the letter and have defined the "upgradePolicy" section for the application in Bicep/ARMTemplate. The doc states that the timeout values are accepted in ISO8601 Duration format. Though, the deployment backend fails to parse the syntactically correct ISO8601 Duration values: Error converting value "PT5M" to type 'System.TimeSpan'. Path 'properties.upgradePolicy.rollingUpgradeMonitoringPolicy.healthCheckRetryTimeout', line 1, position 1823.

Azure Service Fabric
Azure Service Fabric
An Azure service that is used to develop microservices and orchestrate containers on Windows and Linux.
0 comments
Answer accepted by question author
  1. Jilakara Hemalatha 3,115 Reputation points Microsoft External Staff Moderator
    2025-10-21T21:07:16.79+00:00

    Hi Andrey Semenov

    Thanks for reaching Q/A and sharing your details. As per details you shared this happens because the system can't convert the ISO8601 format into a Timespan type, which is what Azure Service Fabric expects.

    Even though PT5M is a valid ISO8601 duration, it seems that Azure Service Fabric isn’t able to handle it correctly. So, we need to use a different format that Azure can understand.

    1. Double-check that you're using the correct format for the timeout value. For example, instead of PT5M you should use 00:05:00 (which is a TimeSpan format).
    2. Go back to your Bicep or ARM template and make sure you're setting the right field for the upgrade policy. For example, check that rollingUpgradeMonitoringPolicy.healthCheckRetryTimeout is the correct property to set for this timeout value.

    Reference: https://free.blessedness.top/en-us/azure/service-fabric/service-fabric-application-upgrade-parameters

0 additional answers

Sort by: Most helpful
Most helpful Newest Oldest

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.