Managed Oracle CDC Source Connector Troubleshooting¶

Review the following troubleshooting information if you run into issues with the connector.

Note

Be sure to review the Oracle Database Prerequisites doc first to be sure no prerequisites were missed.

Empty topics¶

Topics may be empty for a number of reasons. You must ensure the following:

You can access the database from where you run the connector.
The database user has permission to select from the tables.
The table has at least one row.
The table.inclusion.regex configuration property matches the fully qualified table name (for example, dbo.Users) and that the regular expression in the table.exclusion.regex configuration property does not match the fully qualified table name.
If start.from is set to a particular SCN, ensure the rows in the database have changed since that SCN.
If start.from=snapshot (the default), ensure the rows in the database have changed since the snapshot for the table was created.

Regex pattern issues¶

The following sections provide regex pattern guidance.

Amazon RDS instances for Oracle¶

Scenario: You have tables named CONFLUENT_CUSTOMERS, CONFLUENT_ORDERS, CONFLUENT_PRODUCTS, DEMO, and TESTING.

To capture changes to tables starting with CONFLUENT, use the following regex pattern:

"oracle.sid":"ORCL",
"oracle.username": "admin",
"table.inclusion.regex":"ORCL[.]ADMIN[.]CONFLUENT.*",

To capture changes to starting with DEMO and TESTING, use the following regex pattern:

"oracle.sid":"ORCL",
"oracle.username": "admin",
"table.inclusion.regex":"ORCL[.]ADMIN[.](DEMO|TESTING)",

To capture changes to tables starting with CONFLUENT, DEMO and TESTING, use the following regex pattern:

"oracle.sid":"ORCLCDB",
"oracle.username": "C##MYUSER",
"table.inclusion.regex":"ORCLCDB[.]C##MYUSER[.](CONFLUENT.*|DEMO|TESTING)",

Oracle Non-container and container Databases (CDBs)¶

Scenario: You have tables named CONFLUENT_CUSTOMERS, CONFLUENT_ORDERS, CONFLUENT_PRODUCTS, DEMO, and TESTING.

To capture changes to tables starting with CONFLUENT, use the following regex pattern:

"oracle.sid":"ORCLCDB",
"oracle.username": "C##MYUSER",
"table.inclusion.regex":"ORCLCDB[.]C##MYUSER[.]CONFLUENT.*",

To capture changes to tables starting with DEMO and TESTING, use the following regex pattern:

"oracle.sid":"ORCLCDB",
"oracle.username": "C##MYUSER",
"table.inclusion.regex":"ORCLCDB[.]C##MYUSER[.](DEMO|TESTING)",

To capture changes to tables starting with CONFLUENT, and DEMO and TESTING tables, use the following regex pattern:

"oracle.sid":"ORCLCDB",
"oracle.username": "C##MYUSER",
"table.inclusion.regex":"ORCLCDB[.]C##MYUSER[.](CONFLUENT.*|DEMO|TESTING)",

Oracle Pluggable Databases (PDBs)¶

Scenario: You have tables named CONFLUENT_CUSTOMERS, CONFLUENT_ORDERS, CONFLUENT_PRODUCTS, DEMO, and TESTING.

To capture changes to tables starting with CONFLUENT, use the following regex pattern:

"oracle.sid":"ORCLCDB",
"oracle.pdb.name": "ORCLPDB1",
"oracle.username": "C##MYUSER",
"table.inclusion.regex":"ORCLPDB1[.]C##MYUSER[.]CONFLUENT.*",

To capture changes to tables starting with DEMO and TESTING, use the following regex pattern:

"oracle.sid":"ORCLCDB",
"oracle.pdb.name": "ORCLPDB1",
"oracle.username": "C##MYUSER",
"table.inclusion.regex":"ORCLPDB1[.]C##MYUSER[.](DEMO|TESTING)",

To capture changes to tables starting with CONFLUENT, and DEMO and TESTING, use the following regex pattern:

"oracle.sid":"ORCLCDB",
"oracle.pdb.name": "ORCLPDB1",
"oracle.username": "C##MYUSER",
"table.inclusion.regex":"ORCLPDB1[.]C##MYUSER[.](CONFLUENT.*|DEMO|TESTING)",

Note

For additional troubleshooting guidance, see the Troubleshooting docs for the self-managed Oracle CDC Source connector. Note that not all of the self-managed troubleshooting information may apply to the managed connector version.