[Internal] ClientRetryPolicy: Adds Code to Apply Partition Level Override When a Requested Cancellation Token Expires#5063
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Description
Background:
During one of the backend drills, it was identified that when the following quorum loss condition is met, and the user provides a cancellation token, SDK honors the token, however doesn't apply the partition level fail over for the offending partition:
Observation:
Fix:
This PR is fixing the above behavior to apply partition level override, when a cancellation token gets expired. In order to avoid false positives, the cancellation token based failovers are currently based on certain thresholds, which could be overridden by setting the following environment variables:
AZURE_COSMOS_PPCB_CONSECUTIVE_FAILURE_COUNT_FOR_READSandAZURE_COSMOS_PPCB_CONSECUTIVE_FAILURE_COUNT_FOR_WRITES.Type of change
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Closing issues
To automatically close an issue: closes #5060