[Hotfix] Query: Adds environment variable for overriding EnableOptimisticDirectExecution default
#4311
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* Code changes to bump up release versions. * Updated changelog. --------- Co-authored-by: REDMOND\adityasa <adityasa@microsoft.com>
kundadebdatta
requested review from
kirankumarkolli,
ealsur,
FabianMeiswinkel,
kirillg and
sboshra
as code owners
kirankumarkolli
approved these changes
Feb 7, 2024
adityasa
approved these changes
Feb 7, 2024
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Pull Request Template
Description
Cherry-pick of following PR from master:
This change adds an ability to override the default value of EnableOptimisticDirectExecution setting using an environment variable named
AZURE_COSMOS_OPTIMISTIC_DIRECT_EXECUTION_ENABLED.The environment variable should have a value that can be parsed as a
Booleanin order for the override to work.As before the default value is true and also the backend setting using
clientDisableOptimisticDirectExecutionacts as a master switch and acts as global account-level override to disable/enable ODE behavior (in clients).The environment variable can be used while upgrading the sdk package to 3.38 onwards, which turns on ODE by default. As mentioned in the release notes (of
3.38.0), due to the use of a new type of continuation token, applications that execute queries (and their continuations) in a stateless manner on machines that can be using different versions of sdk, failures can be observed.This environment variable can be set to true before upgrading the sdk package to avoid such failures during the sdk deployment process in production environment. Once the upgrade is complete the environment variable can be removed or set to false.
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