# confluent kafka topic update ## Description Update a Kafka topic. ```none confluent kafka topic update [flags] ``` ## Flags ### Cloud ```none --config strings REQUIRED: A comma-separated list of "key=value" pairs, or path to a configuration file containing a newline-separated list of "key=value" pairs. --kafka-endpoint string Endpoint to be used for this Kafka cluster. --dry-run Run the command without committing changes. --cluster string Kafka cluster ID. --context string CLI context name. --environment string Environment ID. -o, --output string Specify the output format as "human", "json", or "yaml". (default "human") ``` ### On-Premises ```none --url string Base URL of REST Proxy Endpoint of Kafka Cluster (include "/kafka" for embedded Rest Proxy). Must set flag or CONFLUENT_REST_URL. --certificate-authority-path string Path to a PEM-encoded Certificate Authority to verify the Confluent REST Proxy. --client-cert-path string Path to client cert to be verified by Confluent REST Proxy. Include for mTLS authentication. --client-key-path string Path to client private key, include for mTLS authentication. --no-authentication Include if requests should be made without authentication headers and user will not be prompted for credentials. --prompt Bypass use of available login credentials and prompt for Kafka Rest credentials. --config strings A comma-separated list of "key=value" pairs, or path to a configuration file containing a newline-separated list of "key=value" pairs. -o, --output string Specify the output format as "human", "json", or "yaml". (default "human") ``` ## Global Flags ```none -h, --help Show help for this command. --unsafe-trace Equivalent to -vvvv, but also log HTTP requests and responses which might contain plaintext secrets. -v, --verbose count Increase verbosity (-v for warn, -vv for info, -vvv for debug, -vvvv for trace). ``` ## Examples ### Cloud Modify the “my_topic” topic to have a retention period of 3 days (259200000 milliseconds). ```none confluent kafka topic update my_topic --config retention.ms=259200000 ``` ### On-Premises Modify the “my_topic” topic for the specified cluster (providing embedded Kafka REST Proxy endpoint) to have a retention period of 3 days (259200000 milliseconds). ```none confluent kafka topic update my_topic --url http://localhost:8082 --config retention.ms=259200000 ``` Modify the “my_topic” topic for the specified cluster (providing Kafka REST Proxy endpoint) to have a retention period of 3 days (259200000 milliseconds). ```none confluent kafka topic update my_topic --url http://localhost:8082 --config retention.ms=259200000 ``` ## See Also * [confluent kafka topic](index.md#confluent-kafka-topic) - Manage Kafka topics.