Fixes https://emqx.atlassian.net/browse/EMQX-9130
Since buffer workers always support async calls ("outer calls"), we
should decouple those two call modes (inner and outer), and avoid
exposing the inner call configuration to user to avoid complexity.
For bridges that currently only allow sync query modes, we should
allow them to be configured with async. That means basically all
bridge types except Kafka Producer.
This commit makes it possible to use the ${var} syntax to refer to
variables in the payload of the message in the collection field.
This makes it possible to select which collection to insert into
dynamically.
Fixes:
https://emqx.atlassian.net/browse/EMQX-9246
Fixes https://emqx.atlassian.net/browse/EMQX-9392
The returned information does not allow to diagnose the issue (i.e.: a
connection issue due to the wrong host and port, the wrong password
failing authn). However, such information is printed to the logs.
This changes the returned error to the API so that the user is hinted
at looking at the logs for further investigation of the error.
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.
Fixes https://emqx.atlassian.net/browse/EMQX-9129
Currently, if an user configures a bridge with query mode sync, then
all calls to the underlying driver/connector ("inner calls") will
always be synchronous, regardless of its support for async calls.
Since buffer workers always support async queries ("outer calls"), we
should decouple those two call modes (inner and outer), and avoid
exposing the inner call configuration to user to avoid complexity.
There are two situations when we want to force synchronous calls to
the underlying connector even if it supports async:
1) When using `simple_sync_query`, since we are bypassing the buffer
workers;
2) When retrying the inflight window, to avoid overwhelming the
driver.
Those tests in the `flaky` test are really flaky and require lots of
CI retries.
Apparently, the flakiness comes from race conditions from restarting
bridges with the same name too fast between test cases. Previously,
all test cases were sharing the same bridge name (the module name).