How to use Pulsar connectors

How to use Pulsar connectors

This guide describes how to use Pulsar connectors.

Install a connector

Pulsar bundles several built-in connectors used to move data in and out of commonly used systems (such as database and messaging system). Optionally, you can create and use your desired non-built-in connectors.

note

When using a non-built-in connector, you need to specify the path of an archive file for the connector.

To set up a built-in connector, follow the instructions.

After the setup, the built-in connector is automatically discovered by Pulsar brokers (or function-workers), so no additional installation steps are required.

Configure a connector

You can configure the following information:

Configure a default storage location for a built-in connector
Configure a connector with a YAML file

Configure a default storage location for a built-in connector

To configure a default folder for built-in connectors, set the connectorsDirectory parameter in the ./conf/functions_worker.yml configuration file.

Example

Set the ./connectors folder as the default storage location for built-in connectors.

########################
# Connectors
########################
connectorsDirectory: ./connectors

Configure a connector with a YAML file

To configure a connector, you need to provide a YAML configuration file when creating a connector.

The YAML configuration file tells Pulsar where to locate connectors and how to connect connectors with Pulsar topics.

Example 1

Below is a YAML configuration file of a Cassandra sink, which tells Pulsar:

Which Cassandra cluster to connect
What is the keyspace and columnFamily to be used in Cassandra for collecting data
How to map Pulsar messages into Cassandra table key and columns

tenant: public
namespace: default
name: cassandra-test-sink
...
# cassandra specific config
configs:
    roots: "localhost:9042"
    keyspace: "pulsar_test_keyspace"
    columnFamily: "pulsar_test_table"
    keyname: "key"
    columnName: "col"

Example 2

Below is a YAML configuration file of a Kafka source.

configs:
   bootstrapServers: "pulsar-kafka:9092"
   groupId: "test-pulsar-io"
   topic: "my-topic"
   sessionTimeoutMs: "10000"
   autoCommitEnabled: "false"

Example 3

Below is a YAML configuration file of a PostgreSQL JDBC sink.

configs:
   userName: "postgres"
   password: "password"
   jdbcUrl: "jdbc:postgresql://localhost:5432/test_jdbc"
   tableName: "test_jdbc"

Prepare a connector

Before starting using connectors, you can perform the following operations:

Reload connectors
Get a list of available connectors

`reload`

If you add or delete a nar file in a connector folder, reload the available built-in connector before using it.

Source

To reload source connectors, you can use the reload subcommand.

pulsar-admin sources reload

For the latest and complete information, see Pulsar admin docs.

Sink

To reload sink connectors, you can use the reload subcommand.

pulsar-admin sinks reload

For the latest and complete information, see Pulsar admin docs.

`available`

After reloading connectors (optional), you can get a list of available connectors.

Source

To get a list of source connectors, you can use the available-sources subcommand.

pulsar-admin sources available-sources

Sink

To get a list of sink connectors, you can use the available-sinks subcommand.

pulsar-admin sinks available-sinks

Run a connector

To run a connector, you can perform the following operations:

Create a connector
Start a connector
Run a connector locally

`create`

To create a connector, you can use Admin CLI, REST API or JAVA admin API.

Source

To create a source connector, you can use the following commands:

Admin CLI
REST API
Java Admin API

Use the create subcommand.

pulsar-admin sources create options

For the latest and complete information, see Pulsar admin docs.

Send a POST request to this endpoint: POST /admin/v3/sources/{tenant}/{namespace}/{sourceName}

Create a source connector with a local file.
```
void createSource(SourceConfig sourceConfig,
                  String fileName)
           throws PulsarAdminException
```
Parameter

Name Description
sourceConfig The source configuration object

Exception

Name Description
PulsarAdminException Unexpected error

For more information, see createSource.
Create a source connector using a remote file with a URL from which fun-pkg can be downloaded.
```
void createSourceWithUrl(SourceConfig sourceConfig,
                         String pkgUrl)
                  throws PulsarAdminException
```
Supported URLs are http and file.

Example
- HTTP: http://www.repo.com/fileName.jar
- File: file:///dir/fileName.jar
Parameter

Parameter Description
sourceConfig The source configuration object
pkgUrl URL from which pkg can be downloaded

Exception

Name Description
PulsarAdminException Unexpected error

For more information, see createSourceWithUrl.

Name	Description
`sourceConfig`	The source configuration object

Parameter	Description
`sourceConfig`	The source configuration object
`pkgUrl`	URL from which pkg can be downloaded

Sink

To create a sink connector, you can use the following commands:

Admin CLI
REST API
Java Admin API

Use the create subcommand.

pulsar-admin sinks create options

For the latest and complete information, see Pulsar admin docs.

Send a POST request to this endpoint: POST /admin/v3/sinks/{tenant}/{namespace}/{sinkName}

Create a sink connector with a local file.
```
void createSink(SinkConfig sinkConfig,
                String fileName)
         throws PulsarAdminException
```
Parameter

Name Description
sinkConfig The sink configuration object

Exception

Name Description
PulsarAdminException Unexpected error

For more information, see createSink.
Create a sink connector using a remote file with a URL from which fun-pkg can be downloaded.
```
void createSinkWithUrl(SinkConfig sinkConfig,
                    String pkgUrl)
                throws PulsarAdminException
```
Supported URLs are http and file.

Example
- HTTP: http://www.repo.com/fileName.jar
- File: file:///dir/fileName.jar
Parameter

Parameter Description
sinkConfig The sink configuration object
pkgUrl URL from which pkg can be downloaded

Exception

Name Description
PulsarAdminException Unexpected error

For more information, see createSinkWithUrl.

Name	Description
`sinkConfig`	The sink configuration object

Parameter	Description
`sinkConfig`	The sink configuration object
`pkgUrl`	URL from which pkg can be downloaded

`start`

To start a connector, you can use Admin CLI or REST API.

Source

To start a source connector, you can use the following commands.

Admin CLI
REST API

Use the start subcommand.

pulsar-admin sources start options

For the latest and complete information, see Pulsar admin docs.

Start all source connectors.

Send a POST request to this endpoint: POST /admin/v3/sources/{tenant}/{namespace}/{sourceName}/start
Start a specified source connector.

Send a POST request to this endpoint: POST /admin/v3/sources/{tenant}/{namespace}/{sourceName}/{instanceId}/start

Sink

To start a sink connector, you can use the following commands:

Admin CLI
REST API

Use the start subcommand.

pulsar-admin sinks start options

For the latest and complete information, see Pulsar admin docs.

Start all sink connectors.

Send a POST request to this endpoint: POST /admin/v3/sinks/{tenant}/{namespace}/{sinkName}/start
Start a specified sink connector.

Send a POST request to this endpoint: POST /admin/v3/sinks/{tenant}/{namespace}/{sinkName}/{instanceId}/start

`localrun`

To run a connector locally rather than deploying it on a Pulsar cluster, you can use Admin CLI

Source

To run a source connector locally, you can use the following command:

Admin CLI

Use the localrun subcommand.

pulsar-admin sources localrun options

For the latest and complete information, see Pulsar admin docs.

Sink

To run a sink connector locally, you can use the following command:

Admin CLI

Use the localrun subcommand.

pulsar-admin sinks localrun options

For the latest and complete information, see Pulsar admin docs.

Run a Pulsar Function before a sink connector

You can run a Pulsar Function in memory before a sink connector. For details, see PIP 193: Sink preprocessing Function. Running a Pulsar Function in memory before a sink connector provides lower latency, less I/O, and disk consumption than going through an intermediate topic. Use the --transform-function, --transform-function-classname and --transform-function-config options when creating the sink connector to configure the transform Function to run.

For the latest and complete information, see Pulsar admin sinks command docs.

Monitor a connector

To monitor a connector, you can perform the following operations:

Get the information of a connector
Get the list of all running connectors
Get the current status of a connector

`get`

To get the information of a connector, You can use Admin CLI, REST API or JAVA admin API.

Source

To get the information of a source connector, you can use the following commands:

Admin CLI
REST API
Java Admin API

Use the get subcommand.

pulsar-admin sources get options

For the latest and complete information, see Pulsar admin docs.

Send a GET request to this endpoint: GET /admin/v3/sources/{tenant}/{namespace}/{sourceName}

SourceConfig getSource(String tenant,
                       String namespace,
                       String source)
                throws PulsarAdminException

Example

This is a sourceConfig.

{
 "tenant": "tenantName",
 "namespace": "namespaceName",
 "name": "sourceName",
 "className": "className",
 "topicName": "topicName",
 "configs": {},
 "parallelism": 1,
 "processingGuarantees": "ATLEAST_ONCE",
 "resources": {
   "cpu": 1.0,
   "ram": 1073741824,
   "disk": 10737418240
 }
}

This is a sourceConfig example.

{
 "tenant": "public",
 "namespace": "default",
 "name": "debezium-mysql-source",
 "className": "org.apache.pulsar.io.debezium.mysql.DebeziumMysqlSource",
 "topicName": "debezium-mysql-topic",
 "configs": {
   "database.user": "debezium",
   "database.server.id": "184054",
   "database.server.name": "dbserver1",
   "database.port": "3306",
   "database.hostname": "localhost",
   "database.password": "dbz",
   "database.history.pulsar.service.url": "pulsar://127.0.0.1:6650",
   "value.converter": "org.apache.kafka.connect.json.JsonConverter",
   "database.whitelist": "inventory",
   "key.converter": "org.apache.kafka.connect.json.JsonConverter",
   "database.history": "org.apache.pulsar.io.debezium.PulsarDatabaseHistory",
   "pulsar.service.url": "pulsar://127.0.0.1:6650",
   "database.history.pulsar.topic": "history-topic2"
 },
 "parallelism": 1,
 "processingGuarantees": "ATLEAST_ONCE",
 "resources": {
   "cpu": 1.0,
   "ram": 1073741824,
   "disk": 10737418240
 }
}

Exception

Exception name	Description
`PulsarAdminException.NotAuthorizedException`	You don’t have the admin permission
`PulsarAdminException.NotFoundException`	Cluster doesn’t exist
`PulsarAdminException`	Unexpected error

For more information, see getSource.

Sink

To get the information of a sink connector, you can use the following commands:

Admin CLI
REST API
Java Admin API

Use the get subcommand.

pulsar-admin sinks get options

For the latest and complete information, see Pulsar admin docs.

Send a GET request to this endpoint: GET /admin/v3/sinks/{tenant}/{namespace}/{sinkName}

SinkConfig getSink(String tenant,
                   String namespace,
                   String sink)
            throws PulsarAdminException

Example

This is a sinkConfig.

{
"tenant": "tenantName",
"namespace": "namespaceName",
"name": "sinkName",
"className": "className",
"inputSpecs": {
"topicName": {
    "isRegexPattern": false
}
},
"configs": {},
"parallelism": 1,
"processingGuarantees": "ATLEAST_ONCE",
"retainOrdering": false,
"autoAck": true
}

This is a sinkConfig example.

{
  "tenant": "public",
  "namespace": "default",
  "name": "pulsar-postgres-jdbc-sink",
  "className": "org.apache.pulsar.io.jdbc.PostgresJdbcAutoSchemaSink",
  "inputSpecs": {
  "pulsar-postgres-jdbc-sink-topic": {
     "isRegexPattern": false
    }
  },
  "configs": {
    "password": "password",
    "jdbcUrl": "jdbc:postgresql://localhost:5432/pulsar_postgres_jdbc_sink",
    "userName": "postgres",
    "tableName": "pulsar_postgres_jdbc_sink"
  },
  "parallelism": 1,
  "processingGuarantees": "ATLEAST_ONCE",
  "retainOrdering": false,
  "autoAck": true
}

Parameter description

Name	Description
`tenant`	Tenant name
`namespace`	Namespace name
`sink`	Sink name

For more information, see getSink.

`list`

To get the list of all running connectors, You can use Admin CLI, REST API or JAVA admin API.

Source

To get the list of all running source connectors, you can use the following commands:

Admin CLI
REST API
Java Admin API

Use the list subcommand.

pulsar-admin sources list options

For the latest and complete information, see Pulsar admin docs.

Send a GET request to this endpoint: GET /admin/v3/sources/{tenant}/{namespace}

List<String> listSources(String tenant,
                         String namespace)
                  throws PulsarAdminException

Response example

["f1", "f2", "f3"]

Exception

Exception name	Description
`PulsarAdminException.NotAuthorizedException`	You don’t have the admin permission
`PulsarAdminException`	Unexpected error

For more information, see listSource.

Sink

To get the list of all running sink connectors, you can use the following commands:

Admin CLI
REST API
Java Admin API

Use the list subcommand.

pulsar-admin sinks list options

For the latest and complete information, see Pulsar admin docs.

Send a GET request to this endpoint: GET /admin/v3/sinks/{tenant}/{namespace}

List<String> listSinks(String tenant,
                       String namespace)
                throws PulsarAdminException

Response example

["f1", "f2", "f3"]

Exception

Exception name	Description
`PulsarAdminException.NotAuthorizedException`	You don’t have the admin permission
`PulsarAdminException`	Unexpected error

For more information, see listSource.

`status`

To get the current status of a connector, you can use Admin CLI, REST API or JAVA admin API.

Source

To get the current status of a source connector, you can use the following commands:

Admin CLI
REST API
Java Admin API

Use the status subcommand.

pulsar-admin sources status options

For the latest and complete information, see Pulsar admin docs.

Get the current status of all source connectors.

Send a GET request to this endpoint: GET /admin/v3/sources/{tenant}/{namespace}/{sourceName}/status
Gets the current status of a specified source connector.

Send a GET request to this endpoint: GET /admin/v3/sources/{tenant}/{namespace}/{sourceName}/status

Get the current status of all source connectors.

SourceStatus getSourceStatus(String tenant,
                            String namespace,
                            String source)
                    throws PulsarAdminException

Parameter

Parameter	Description
`tenant`	Tenant name
`namespace`	Namespace name
`sink`	Source name

Exception

Name	Description
`PulsarAdminException`	Unexpected error

For more information, see getSourceStatus.

Gets the current status of a specified source connector.

SourceStatus.SourceInstanceStatus.SourceInstanceStatusData getSourceStatus(String tenant,
                                                                           String namespace,
                                                                           String source,
                                                                           int id)
                                                                    throws PulsarAdminException

Parameter

Parameter	Description
`tenant`	Tenant name
`namespace`	Namespace name
`sink`	Source name
`id`	Source instanceID

Exception

Exception name	Description
`PulsarAdminException`	Unexpected error

For more information, see getSourceStatus.

Sink

To get the current status of a Pulsar sink connector, you can use the following commads:

Admin CLI
REST API
Java Admin API

Use the status subcommand.

pulsar-admin sinks status options

For the latest and complete information, see Pulsar admin docs.

Get the current status of all sink connectors.

Send a GET request to this endpoint: GET /admin/v3/sinks/{tenant}/{namespace}/{sinkName}/status
Gets the current status of a specified sink connector.

Send a GET request to this endpoint: GET /admin/v3/sinks/{tenant}/{namespace}/{sinkName}/{instanceId}/status
Get the current status of all sink connectors.
```
SinkStatus getSinkStatus(String tenant,
                         String namespace,
                         String sink)
                  throws PulsarAdminException
```
Parameter

Parameter Description
tenant Tenant name
namespace Namespace name
sink Source name

Exception

Exception name Description
PulsarAdminException Unexpected error

For more information, see getSinkStatus.

Gets the current status of a specified source connector.

SinkStatus.SinkInstanceStatus.SinkInstanceStatusData getSinkStatus(String tenant,
                                                                   String namespace,
                                                                   String sink,
                                                                   int id)
                                                            throws PulsarAdminException

Parameter

Parameter	Description
`tenant`	Tenant name
`namespace`	Namespace name
`sink`	Source name
`id`	Sink instanceID

Exception

Exception name	Description
`PulsarAdminException`	Unexpected error

For more information, see getSinkStatusWithInstanceID.

Update a connector

`update`

To update a running connector, you can use Admin CLI, REST API or JAVA admin API.

Source

To update a running Pulsar source connector, you can use the following commands:

Admin CLI
REST API
Java Admin API

Use the update subcommand.

pulsar-admin sources update options

For the latest and complete information, see Pulsar admin docs.

Send a PUT request to this endpoint: PUT /admin/v3/sources/{tenant}/{namespace}/{sourceName}

Update a running source connector with a local file.
```
void updateSource(SourceConfig sourceConfig,
                String fileName)
        throws PulsarAdminException
```
Parameter

Name Description
sourceConfig The source configuration object

Exception

Name Description
PulsarAdminException.NotAuthorizedException You don’t have the admin permission
PulsarAdminException.NotFoundException Cluster doesn’t exist
PulsarAdminException Unexpected error

For more information, see updateSource.
Update a source connector using a remote file with a URL from which fun-pkg can be downloaded.
```
void updateSourceWithUrl(SourceConfig sourceConfig,
                     String pkgUrl)
              throws PulsarAdminException
```
Supported URLs are http and file.

Example
- HTTP: http://www.repo.com/fileName.jar
- File: file:///dir/fileName.jar
Parameter

Name Description
sourceConfig The source configuration object
pkgUrl URL from which pkg can be downloaded

Exception

Name Description
PulsarAdminException.NotAuthorizedException You don’t have the admin permission
PulsarAdminException.NotFoundException Cluster doesn’t exist
PulsarAdminException Unexpected error

Name	Description
`sourceConfig`	The source configuration object

Name	Description
`sourceConfig`	The source configuration object
`pkgUrl`	URL from which pkg can be downloaded

For more information, see createSourceWithUrl.

Sink

To update a running Pulsar sink connector, you can use the following commands:

Admin CLI
REST API
Java Admin API

Use the update subcommand.

pulsar-admin sinks update options

For the latest and complete information, see Pulsar admin docs.

Send a PUT request to this endpoint: PUT /admin/v3/sinks/{tenant}/{namespace}/{sinkName}

Update a running sink connector with a local file.
```
void updateSink(SinkConfig sinkConfig,
                String fileName)
     throws PulsarAdminException
```
Parameter

Name Description
sinkConfig The sink configuration object

Exception

Name Description
PulsarAdminException.NotAuthorizedException You don’t have the admin permission
PulsarAdminException.NotFoundException Cluster doesn’t exist
PulsarAdminException Unexpected error

For more information, see updateSink.
Update a sink connector using a remote file with a URL from which fun-pkg can be downloaded.
```
void updateSinkWithUrl(SinkConfig sinkConfig,
                       String pkgUrl)
                throws PulsarAdminException
```
Supported URLs are http and file.

Example
- HTTP: http://www.repo.com/fileName.jar
- File: file:///dir/fileName.jar
Parameter

Name Description
sinkConfig The sink configuration object
pkgUrl URL from which pkg can be downloaded

Exception

Name Description
PulsarAdminException.NotAuthorizedException You don’t have the admin permission
PulsarAdminException.NotFoundException Cluster doesn’t exist
PulsarAdminException Unexpected error

Name	Description
`sinkConfig`	The sink configuration object

Name	Description
`sinkConfig`	The sink configuration object
`pkgUrl`	URL from which pkg can be downloaded

For more information, see updateSinkWithUrl.

Stop a connector

`stop`

To stop a connector, you can use Admin CLI, REST API or JAVA admin API.

Source

To stop a source connector, you can use the following commands:

Admin CLI
REST API
Java Admin API

Use the stop subcommand.

pulsar-admin sources stop options

For the latest and complete information, see Pulsar admin docs.

Stop all source connectors.

Send a POST request to this endpoint: POST /admin/v3/sources/{tenant}/{namespace}/{sourceName}/stop
Stop a specified source connector.

Send a POST request to this endpoint: POST /admin/v3/sources/{tenant}/{namespace}/{sourceName}/{instanceId}/stop
Stop all source connectors.
```
void stopSource(String tenant,
                String namespace,
                String source)
        throws PulsarAdminException
```
Parameter

Name Description
tenant Tenant name
namespace Namespace name
source Source name

Exception

Name Description
PulsarAdminException Unexpected error

For more information, see stopSource.
Stop a specified source connector.
```
void stopSource(String tenant,
                String namespace,
                String source,
                int instanceId)
         throws PulsarAdminException
```
Parameter

Name Description
tenant Tenant name
namespace Namespace name
source Source name
instanceId Source instanceID

Exception

Name Description
PulsarAdminException Unexpected error

For more information, see stopSource.

Sink

To stop a sink connector, you can use the following commands:

Admin CLI
REST API
Java Admin API

Use the stop subcommand.

pulsar-admin sinks stop options

For the latest and complete information, see Pulsar admin docs.

Stop all sink connectors.

Send a POST request to this endpoint: POST /admin/v3/sinks/{tenant}/{namespace}/{sinkName}/stop
Stop a specified sink connector.

Send a POST request to this endpoint: POST /admin/v3/sinks/{tenant}/{namespace}/{sinkName}/{instanceId}/stop
Stop all sink connectors.
```
void stopSink(String tenant,
            String namespace,
            String sink)
    throws PulsarAdminException
```
Parameter

Name Description
tenant Tenant name
namespace Namespace name
source Source name

Exception

Name Description
PulsarAdminException Unexpected error

For more information, see stopSink.
Stop a specified sink connector.
```
void stopSink(String tenant,
              String namespace,
              String sink,
              int instanceId)
       throws PulsarAdminException
```
Parameter

Name Description
tenant Tenant name
namespace Namespace name
source Source name
instanceId Source instanceID

Exception

Name Description
PulsarAdminException Unexpected error

For more information, see stopSink.

Restart a connector

`restart`

To restart a connector, you can use Admin CLI, REST API or JAVA admin API.

Source

To restart a source connector, you can use the following commands:

Admin CLI
REST API
Java Admin API

Use the restart subcommand.

pulsar-admin sources restart options

For the latest and complete information, see Pulsar admin docs.

Restart all source connectors.

Send a POST request to this endpoint: POST /admin/v3/sources/{tenant}/{namespace}/{sourceName}/restart
Restart a specified source connector.

Send a POST request to this endpoint: POST /admin/v3/sources/{tenant}/{namespace}/{sourceName}/{instanceId}/restart
Restart all source connectors.
```
void restartSource(String tenant,
                   String namespace,
                   String source)
            throws PulsarAdminException
```
Parameter

Name Description
tenant Tenant name
namespace Namespace name
source Source name

Exception

Name Description
PulsarAdminException Unexpected error

For more information, see restartSource.

Restart a specified source connector.

void restartSource(String tenant,
                   String namespace,
                   String source,
                   int instanceId)
            throws PulsarAdminException

Parameter

Name	Description
`tenant`	Tenant name
`namespace`	Namespace name
`source`	Source name
`instanceId`	Source instanceID

Exception

Name	Description
`PulsarAdminException`	Unexpected error

For more information, see restartSource.

Sink

To restart a sink connector, you can use the following commands:

Admin CLI
REST API
Java Admin API

Use the restart subcommand.

pulsar-admin sinks restart options

For the latest and complete information, see Pulsar admin docs.

Restart all sink connectors.

Send a POST request to this endpoint: POST /admin/v3/sources/{tenant}/{namespace}/{sourceName}/restart
Restart a specified sink connector.

Send a POST request to this endpoint: POST /admin/v3/sources/{tenant}/{namespace}/{sourceName}/{instanceId}/restart
Restart all Pulsar sink connectors.
```
void restartSink(String tenant,
                 String namespace,
                 String sink)
          throws PulsarAdminException
```
Parameter

Name Description
tenant Tenant name
namespace Namespace name
sink Sink name

Exception

Name Description
PulsarAdminException Unexpected error

For more information, see restartSink.
Restart a specified sink connector.
```
void restartSink(String tenant,
                 String namespace,
                 String sink,
                 int instanceId)
          throws PulsarAdminException
```
Parameter

Name Description
tenant Tenant name
namespace Namespace name
source Source name
instanceId Sink instanceID

Exception

Name Description
PulsarAdminException Unexpected error

For more information, see restartSink.

Delete a connector

`delete`

To delete a connector, you can use Admin CLI, REST API or JAVA admin API.

Source

To delete a source connector, you can use the following commands:

Admin CLI
REST API
Java Admin API

Use the delete subcommand.

pulsar-admin sources delete options

For the latest and complete information, see Pulsar admin docs.

Delete al Pulsar source connector.

Send a DELETE request to this endpoint: DELETE /admin/v3/sources/{tenant}/{namespace}/{sourceName}

Delete a source connector.

void deleteSource(String tenant,
                  String namespace,
                  String source)
           throws PulsarAdminException

Parameter

Name	Description
`tenant`	Tenant name
`namespace`	Namespace name
`source`	Source name

Exception

Name	Description
`PulsarAdminException.NotAuthorizedException`	You don’t have the admin permission
`PulsarAdminException.NotFoundException`	Cluster doesn’t exist
`PulsarAdminException.PreconditionFailedException`	Cluster is not empty
`PulsarAdminException`	Unexpected error

For more information, see deleteSource.

Sink

To delete a sink connector, you can use the following commands:

Admin CLI
REST API
Java Admin API

Use the delete subcommand.

pulsar-admin sinks delete options

For the latest and complete information, see Pulsar admin docs.

Delete a sink connector.

Send a DELETE request to this endpoint: DELETE /admin/v3/sinks/{tenant}/{namespace}/{sinkName}

Delete a Pulsar sink connector.

void deleteSink(String tenant,
                String namespace,
                String source)
         throws PulsarAdminException

Parameter

Name	Description
`tenant`	Tenant name
`namespace`	Namespace name
`sink`	Sink name

Exception

Name	Description
`PulsarAdminException.NotAuthorizedException`	You don’t have the admin permission
`PulsarAdminException.NotFoundException`	Cluster doesn’t exist
`PulsarAdminException.PreconditionFailedException`	Cluster is not empty
`PulsarAdminException`	Unexpected error

For more information, see deleteSource.