gaoran10 commented on issue #9851:
URL: https://github.com/apache/pulsar/issues/9851#issuecomment-793793167
It seems that the source connector couldn't publish the properties along
with the message content to the Pulsar topic.
There is a config `forwardSourceMessageProperty` to determine whether set
properties to the Pulsar message properties.
But the source connector doesn't set this param, so its default value is
`false`. If it's a function you could use the param
`--forward-source-message-property` to set its value. Maybe we could add a new
configuration for the source config to set the param
`forwardSourceMessageProperty` or set its default value as `true` for the
source connector.
The method in the class `PulsarSink`.
```
@Override
public void write(Record<T> record) {
SinkRecord<T> sinkRecord = (SinkRecord<T>) record;
TypedMessageBuilder<T> msg =
pulsarSinkProcessor.newMessage(sinkRecord);
...
if (!record.getProperties().isEmpty() &&
pulsarSinkConfig.isForwardSourceMessageProperty()) {
msg.properties(record.getProperties());
}
...
pulsarSinkProcessor.sendOutputMessage(msg, sinkRecord);
}
```
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