[ODS-6705] Descriptors refresh query is executed many times and sometimes hang after cache expiration by gmcelhanon · Pull Request #5 · gmcelhanon/Ed-Fi-ODS-1

Initial work on dealing with the "Thundering Herd" cache expiration problem.

gmcelhanon

committed

First working implementation of the single-flight cache.

gmcelhanon

committed

Added constants for state values, and made CacheEntry a contained class.

gmcelhanon

committed

Single flight cache before introducing async support.

gmcelhanon

committed

Some staged changes.

gmcelhanon

committed

WIP

gmcelhanon

committed

Increase delays by a factor based on number of available processor for unit testing the "thundering herd" problem with the caching.

gmcelhanon

committed

Tweaks to unit tests.

gmcelhanon

committed

Disabled older/obsolete tests.

gmcelhanon

committed

Refinement and testing of async cache implementation and unit tests.

gmcelhanon

committed

Interim cleanup commit.

gmcelhanon

committed

Removing obsolete tests.

gmcelhanon

committed

Refinements and unit test coverage of new async caching implementation.

gmcelhanon

committed

Restoring legacy implementation used by the inadvisable ExternalCache components for backwards compatibility.

gmcelhanon

committed

Move single-flight cache implementations to a dedicated folder (to provide granularity for logging configuration). Converted console write statements to debug logging, and added corresponding log4n…

gmcelhanon

committed

Post rebase compilation fixes.

gmcelhanon

committed

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[ODS-6705] Descriptors refresh query is executed many times and sometimes hang after cache expiration#5

[ODS-6705] Descriptors refresh query is executed many times and sometimes hang after cache expiration#5
gmcelhanon wants to merge 16 commits intob-v7.1-patch4from
ODS-6705-v7.1

Commits on Sep 18, 2025

Initial work on dealing with the "Thundering Herd" cache expiration problem.

First working implementation of the single-flight cache.

Added constants for state values, and made CacheEntry a contained class.

Single flight cache before introducing async support.

Some staged changes.

WIP

Increase delays by a factor based on number of available processor for unit testing the "thundering herd" problem with the caching.

Tweaks to unit tests.

Disabled older/obsolete tests.

Refinement and testing of async cache implementation and unit tests.

Interim cleanup commit.

Removing obsolete tests.

Refinements and unit test coverage of new async caching implementation.

Restoring legacy implementation used by the inadvisable ExternalCache components for backwards compatibility.

Move single-flight cache implementations to a dedicated folder (to provide granularity for logging configuration). Converted console write statements to debug logging, and added corresponding log4n…

Post rebase compilation fixes.