Fixes https://emqx.atlassian.net/browse/EMQX-9366
This callback was accidentally removed while adding another feature,
which made the buffer workers to be used for this bridge while they
shouldn’t be.
To make the configuration more intuitive and avoid exposing more
parameters to the user, we should:
1) Remove reset_by_subscriber as an enum constructor for
`offset_reset_policy`, as that might make the consumer hang
indefinitely without manual action.
2) Set the `begin_offset` `brod_consumer` parameter to `earliest` or
`latest` depending on the value of `offset_reset_policy`, as that’s
probably the user’s intention.
Metrics should only be exposed via the /bridges/:id/metrics endpoint,
and not in other operations such as getting the list of all bridges, or
in the response when a bridge has been created. This commit removes all
traces of metrics for the non-dedicated API endpoints.
This commit adds a Clickhouse bridge to EMQX 5. The bridge is similar to
the Clickhouse bridge in the 4.4, but adds the possibility to use
different formats (such as JSON) for values to be inserted.
A lot of the string value fields had default value defined in
schema as list-string rather than binary-string.
This caused the generated schema dump (in JSON format)
to have raw_default field as an integer array.
some telemetry events from wolff are discarded:
* dropped:
this is double counted in wolff,
we now only subscribe to the dropped_queue_full event
* retried_failed:
it has different meanings in wolff,
in wolff, it means it's the 2nd (or onward) produce attempt
in EMQX, it means it's eventually failed after some retries
* retried_success
since we are going to handle the success counters in callbac
this having this reported from wolff will only make things
harder to understand
* failed
wolff never fails (unelss drop which is a different counter)
A new atom was created every time one did a dry run of a Kafka bridge
(that is, clicking the Test button in the settings dialog for the
bridge).
After this fix, we will only create a new atom when a bridge with a new
name is created. This should be acceptable as bridges with new names are
created relatively rarely and it seems to be useful to have an unique
atom for every Wolff producer.
Fixes: https://emqx.atlassian.net/browse/EMQX-8739
Zaiming (Stone) Shi