Need help!!ERROR:[pipeline_kafka] y_kk_stream <- xxxxxxxx(pid xxxx) :failed to acquire metadata:local:timed out

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when i config as readme.md，start consume_begin，pipelinedb logfile notice an error: failed to acquire metadata : local : timed out ,why?
consume_begin consume topic use kafkacat?where can config this?
another question:when consume topic ,it need security certificate? where can config it ?

thanks!