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dfa561092a
The gateway's embedded dispatcher has no guard against more than one dispatcher running concurrently. dispatch_in_gateway defaults to true, so a second gateway for the same profile (a restart race where the old process is slow to exit) — or any deployment that runs multiple profile gateways with the default — starts a second dispatcher loop. As #41448 describes, concurrent dispatchers each run release_stale_claims() against the same boards, double reclaim frequency, and re-dispatch slow workers before they finish. In practice they also corrupt the shared kanban SQLite DBs under concurrent write load. Add _acquire_singleton_lock(): an exclusive, non-blocking fcntl.flock at the machine-global kanban root (kanban_home()/kanban/.dispatcher.lock — the board is shared across profiles by design, so this serialises every gateway, not just one profile). The first gateway to start its dispatcher holds the lock for its process lifetime; any other gateway finds it contended, logs, and skips dispatching while still running for messaging. Falls back to config-only control on non-POSIX or filesystems without flock. This is more robust than a per-profile guard because the documented model is "one dispatcher sweeps all boards" — the contention is across profiles, not just within one. Closes #41448. Test: lock is exclusive (held, then contended while held, then held again after release). |
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| .. | ||
| assets | ||
| builtin_hooks | ||
| platforms | ||
| relay | ||
| __init__.py | ||
| authz_mixin.py | ||
| channel_directory.py | ||
| config.py | ||
| delivery.py | ||
| display_config.py | ||
| hooks.py | ||
| kanban_watchers.py | ||
| memory_monitor.py | ||
| message_timestamps.py | ||
| mirror.py | ||
| pairing.py | ||
| platform_registry.py | ||
| response_filters.py | ||
| restart.py | ||
| rich_sent_store.py | ||
| run.py | ||
| runtime_footer.py | ||
| session.py | ||
| session_context.py | ||
| shutdown_forensics.py | ||
| slash_access.py | ||
| slash_commands.py | ||
| status.py | ||
| sticker_cache.py | ||
| stream_consumer.py | ||
| stream_dispatch.py | ||
| stream_events.py | ||
| whatsapp_identity.py | ||