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Overrides/Supersedes
4 years ago RAML Module Builder defined the /admin/health endpoint for checking the health of a module. More recently this was included in the formal expectations of a module. Both of these state that the module should always respond with a 200 status code.
This decision was migrated from the Tech Leads Decision Log as part of a consolidation process. The original decision record can be found here.
RFC
N/A
Stakeholders
- #sys-ops
- #development
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Marc Johnson Oleksandr_Dekin (for Spring Way implementation guidance)
Approvers
This decision was made by the Tech Leads group prior to the adoption of current decision making processes within the FOLIO project.
Background/Context
N/A
Assumptions
N/A
Constraints
N/A
Rationale
System operators need to be able to understand if a module instance is healthy enough to be able to participate in the system. FOLIO needs a standard way of allowing operators to determine this.
This topic was discussed at the 2021-02-24 Technical Leads meeting.
It was agreed that:
- The existing path should continue to be used given that system operators already rely on it for some modules
- A module is considered healthy if it can respond to requests to the health check endpoint, no other criteria applies at this point
- Discussion about any additional criteria for the health of a back end module has been deferred
Decision
All back end modules included in the 2021 R2 (and later) distribution must provide a health check endpoint
Implications
- Pros
- N/A
- Cons
- N/A
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