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fix: v0.2.8 — init cooldown to prevent repeated failed-login hammering

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Cache failed `_ensure_initialized` outcomes for 60 seconds so that
repeated tool calls during a credential outage (wrong password,
IP-blocked 407, DNS failure) don't keep hammering DSM. Each caller
gets the same exception raised from the cache until the cooldown
window expires, after which a fresh attempt is made.

- Adds INIT_ERROR_COOLDOWN module constant (60.0 s).
- Adds self._init_error / self._init_error_until state on DsmClient.
- Re-raises cached error inside the init lock, emits warning log on
  cache entry.

Addresses M4 from the 0.2.7 review.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Marcus van Elst
2026-04-21 10:06:35 +02:00
parent e17a70aecf
commit 4caac3a6c7
3 changed files with 23 additions and 2 deletions
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pyproject.toml
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@@ -1,6 +1,6 @@
[project]
name = "mcp-synology-container"
version = "0.2.7"
version = "0.2.8"
description = "MCP server for Synology Container Manager"
requires-python = ">=3.12"
dependencies = [