Files
richard-churchman 2f32c72d69 Features to exercise greater control over cache burden and improve cache warming:
* Added `Cache` flag to `EntityAnalysisRequestXPath`, updating POCOs, DTOs, and synchronisation mappings. Included migrations and updated pages and JS for new fields.
* Updated the Completions Endpoint to only return values if Cache is enabled in the EntityAnalysisModelRequestXPath for EntityAnalysisModelAbstractionRule configuration.
* Updated the parser to ignore fields if the parse processing type is Abstraction Rule, so to ensure that an Abstraction Rule does not compile anywhere, in the controller or syncronisation, if it trys to use a key that exists but is marked as Cache.
* Created migrations for the cache flag and added indexes to cache key columns.
* Implemented a new serialisation pattern for message pack payloads to reduce byte storage of names, replacing them with a `CacheIndexId` serialised as a single byte.
* Implemented indexing logic for `CacheIndexId`, which increments within a transaction per `EntityAnalysisModel`. Created `CacheIndexId` values for legacy data.
* Created migrations for legacy Redis cache payload data to adopt the new `CacheIndexId` format. Added a unique composite index to enforce sequencing and eliminate conflict risks.
* Implemented a new LRU cache warming strategy that populates the LRU cache based on journal usage. During warming, cache entries are populated in order of most recently used journals, exiting when byte limits are reached. This replaces a full cursor scan of payload data, reducing container startup time and mitigating Redis herd-stampede risks. Each journal recall writes to a sorted set (`LruJournals`) that maintains an ordered activity list for cache population. On payload entry removal, the corresponding journal is checked and the `LruJournal` key is removed if no further data exists. Added a `SortedSetLruJournalRemove` enum for task tracking. Implemented an `IsFull` method on the local LRU cache to exit warming once full.
* Updated TTL Counters to process `double` values instead of `int` to support summing of integer and float payload types, making Volume and Velocity rules available to TTL Counters and long-term state. Updated POCOs, DTOs, and synchronisation mappings, applied logic in invocation processes, and included migrations. Updated pages and JS for new fields.
* Updated TTL Counters to specify date resolution for TTL Counter entries, reducing memory footprint by allowing aggregation at broader date roundings (e.g. for long-term state, a daily entry expiry is sufficient). Updated VB.NET code wrappers for the new generic.
* Updated TTL Counters to support an `EnableSum` flag, which uses a `TtlCounterDataValue` field to specify the value to sum. Implemented a dropdown in the page and JS that returns only integer and float data types for selection.
* Updated the efficient no-boxing dictionary to instantiate on the basis of generic type, enabling use with both `int` (message pack) and `string` (core processing and legacy payload migrations). This touched a large number of files and is the primary reason for the size of this commit. Updated the dictionary to support addition of internal values via the interface for serialisation and mapping. Updated JSON serialisers to support the generic.
* Implemented invocation mapping logic for insert and recall between the indexed Redis payload and the string-keyed payload required for processing.
* Bumped the message pack envelope version flag to version 2 to reflect the new payload formats (noting that all data has been migrated and version 1 no longer exists in Redis).
* Updated documentation to cover `LruJournals` in the Redis section, the `Cache` field on the `EntityAnalysisModelsRequestXPath` page, and the `ResolutionInterval` and `TtlCounterDataValue` fields on the `EntityAnalysisTtlCounters` page.
2026-02-27 15:40:15 +02:00
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