Manage Custom Connectors for Confluent Cloud¶
To manage running connectors, refer to the following sections.
Search for a custom connector¶
To find a custom connector, first show all connectors, and then select Cloud custom in the Filter by: Deployment dropdown list.

Filter by deployment¶
Get notifications¶
Confluent Cloud provides out-of-the-box notification capability. You can be notified when a connector status changes to RUNNING or FAILED. For more information, see Notifications for Confluent Cloud.
Modify a custom connector configuration¶
Complete the following steps to modify a custom connector configuration.
Open the connector Overview page.
Connector overview¶
Go to Settings. You can update the number of tasks, change networking endpoints, update credentials, and change or add the connector configuration properties.
To update the custom connector configuration, click the edit icon under Custom configuration.
Edit custom configuration¶
Modify a property or click Add key/value pair and add a new property. You can also modify the JSON configuration directly on the JSON tab.
Update Key/value pairs¶
Click Save changes and then click Apply changes. The connector restarts using the updated configuration.
Update networking endpoints¶
Complete the following steps to update egress endpoints.
Open the connector Overview page.
Connector overview¶
Go to Settings. You can update the number of tasks, change networking endpoints, update credentials, and change or add the connector configuration properties.
To update the custom connector configuration, click the edit icon under Networking.
Edit egress endpoints¶
Update an endpoint or click Add connection endpoint and add a new endpoint. For details about egress endpoints, see endpoints.
Update endpoints¶
Click Save changes and then click Apply changes. The connector restarts using the updated endpoints.
View the app log topic¶
When you launch a custom connector, Confluent Cloud creates a log topic file with the
name clcc-<cluster-ID>-app-logs
. The log topic captures the following log
messages:
- Connector code log messages
- Log messages emitted by code the connector calls
- Connect worker process log messages
Important
Customers are responsible for all charges related to using the app log topic with a custom connector. For billing details, see Custom connector cluster.
View from logs tab¶
Complete the following steps to view log messages:
Open the connector Overview page and click Logs.
Connector overview¶
All log messages are displayed.
Change the view if you only want to see important messages. The messages timestamp in the log can be local time or UTC.
Custom connector logs¶
Click Export to download log messages (JSON and CSV files).
View in app log topic¶
Complete the following steps to view messages in the log topic.
Important
Customers are responsible for all charges related to using the app log topic with a custom connector. For billing details, see Custom connector cluster.
Open the Topics page and click the log topic name.
Select log topic¶
Click Messages.
View log topic messages¶
Expand the message you want to view.
View message details¶
The examples show Connect worker process log messages.
Export log messages¶
The connector stores log messages in a Kafka topic. You can export log data using any of the following options:
- Export logs using a Confluent connector: For example the Elasticsearch Service Sink connector for Confluent Cloud, or the Elasticsearch Service Sink connector for Confluent Platform can export logs to Elasticsearch. Several additional connectors are available that may also be used for exporting logs.
- Create a custom integration using the Kafka REST API for topics to get log messages to a destination logs service.
To manually configure a destination service to capture logs, you will need the following:
Bootstrap server endpoint: This is provided on the Cluster Settings page. For example,
pkc-abc123.<aws-region>.aws.confluent.cloud:9092
. You can also get this information using the following Confluent CLI command:confluent kafka cluster describe
Log topic name: Get this from the topics page. For example,
clcc-<cluster-ID>-app-logs
. You can also get this information using the following Confluent CLI command:confluent kafka topic list
This information is also provided in the UI in Cluster settings.

View cluster settings¶
View metrics¶
Basic message and production throughput metrics are shown on the connector overview page. Click Metrics to view additional metrics for the Kafka Connect worker.
Tip
For Confluent Cloud Metrics API examples, see the Example Queries.

View throughput metrics¶
Scroll for other metrics.

View other metrics¶
You can view metrics for up to the last seven days.
You can export metrics using integrations with the metrics API.
Delete a custom connector¶
Complete the following steps to delete the custom connector instance. If you want to delete a custom connector plugin, see Delete a custom connector plugin.
Note
Deleting a connector does not delete the associated Kafka app log topic.
Open the connector Overview page. Click Settings. The option to delete a connector is located at the bottom of the Settings screen.
Click Delete connector.
Delete connector on Settings¶
Enter the connector name on the confirmation screen and click Confirm.