fix(v0.5.2): deterministic R2RML serialization + MCP cold-start retry#80
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Both _get and _post now retry up to 3 times on 502/503 with back-off 5s → 10s → 20s (~35s total), covering the typical Apps cold-start window. Each retry is logged at WARNING level. All other status codes still fail immediately. Also adds pytest/pytest-asyncio/anyio as dev dependencies to the mcp-server package so `uv run pytest` works out of the box.
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Summary
Two targeted fixes backported to
masteras v0.5.2. The previous PR #77 was contaminated by adevelopmerge done to unblock PR #79 — this is a clean replacement with exactly the relevant commits.Type of change
Changes
feat(mapping): Serialize R2RML in deterministic order(ulsmo) — sortsattribute_mappingsso R2RML output is stable across runs.fix(mcp): retry on 502/503 to survive Databricks Apps cold-start— MCP server retries on transient Databricks cold-start errors.version change v0.5.2— bumps version inpyproject.toml.Replaces
Supersedes PR #77 (same branch, contaminated by develop merge).