Page Comparison

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1. The Kafka default delivery semantics is “AT_LEAST_ONCE”. Ensure that domain events have their unique identifiers to be able to handle consuming messages in an idempotent manner

2. Add new consumers in mod-audit to inventory domain events for instances, items, and holdings.

3. Add new consumers in mod-audit to authority domain events for authorities.

4. Add new consumers in mod-audit to source record domain events for marc-bib records.(see: Source Record Domain Eventing)

5. mod-audit should support the following configurations on the tenant level:

   1. Retention period in years (with default value - 0 for indefinite retention)

   2. Anonymizing flag that indicates whether the records in the database should be anonymized before persistence to the database.

6. mod-audit should have the following scheduled jobs:

   1. Daily: to remove records that exceed the retention period

   2. Monthly: to create subpartitions for audit tables

7. Persist audit events in an event storage. A table in DB per entity type with partitioning by UUID (hash) and subpartitioning by date range.

8. Create REST API
   4. to provide information on a list of changes related to a particular entity
   5. to provide detailed information on the particular change - this API should use the Object diff library to return a verbose description of the difference between current and previous snapshots of the entity

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