This error occurs when there are connectivity issues between a MemSQL node and a Kafka cluster. This error is particularly common when using S3 pipelines because of throttling and other S3 behavior. To solve this issue, edit the value of “pipelines_extractor_get_offsets_timeout_ms”:
Description: The maximum time in milliseconds to wait for offset data to be returned from the data source before returning an error. Increase this value if you experience timeout errors, such as ERROR 1970 (HY000): Subprocess timed out.