trustgraph/trustgraph-flow
cybermaggedon 7521e152b9 fix: uuid-ify flow-svc ConfigClient subscription to avoid Pulsar ConsumerBusy on restart (#843)
flow-svc's long-lived ConfigClient was constructed with
subscription=f"{self.id}--config--{id}", where id=params.get("id") is
the deterministic processor id.  On Pulsar the config-response topic
maps to class=response -> Exclusive subscription; when the supervisor
restarts flow-svc within Pulsar's inactive-subscription TTL (minutes),
the previous process's ghost consumer still holds the subscription
and the new process's re-subscribe is rejected with ConsumerBusy,
crash-looping flow-svc.

This is a v2.2 -> v2.3 regression in practice, but not a change in
subscription semantics: the Exclusive mapping for response/notify is
identical between releases.  The regression is that PR #822 split
flow-svc out of config-svc and added this new, long-lived
request/response call site — the new site simply didn't follow the
uuid convention used by the equivalent sites elsewhere
(gateway/config/receiver.py, AsyncProcessor._create_config_client).

Fix: generate a fresh uuid per process instance for the subscription
suffix, matching that convention.
2026-04-22 15:17:56 +01:00
..
trustgraph fix: uuid-ify flow-svc ConfigClient subscription to avoid Pulsar ConsumerBusy on restart (#843) 2026-04-22 15:17:56 +01:00
pyproject.toml Setup for 2.4 release branch (#839) 2026-04-21 21:36:46 +01:00
README.md Maint/fix build env (#84) 2024-09-30 19:47:09 +01:00