Removing a field map
DataStax Apache Pulsar™ Connector processing fails if any mapped Pulsar topic fields are missing from the record. If a field is missing or if the schema change is known ahead, remove the topic-column mapping.
The database table schema has PRIMARY KEY columns that uniquely identify and partition rows.
See CQL data modeling.
A NULL is not allowed in a PRIMARY KEY column, therefore, each PRIMARY KEY column must have a field-column map.
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On a supported database node, use the CQLSH DESCRIBE TABLE command to verify that the field is not a PRIMARY KEY (PK) column.
If the field is a PK column, map a different field to the column. -
Remove the field to column mapping from the configuration. See Mapping pulsar topics to database tables.
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Update the configuration with the new settings. See Updating the DataStax Apache Pulsar™ Connector configuration.
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Start the Pulsar producer that had the schema change.
