Randall Hauch created KAFKA-9883:
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Summary: Connect request to restart task can result in
IllegalArgumentError: "uriTemplate" parameter is null
Key: KAFKA-9883
URL: https://issues.apache.org/jira/browse/KAFKA-9883
Project: Kafka
Issue Type: Bug
Components: KafkaConnect
Affects Versions: 2.4.0
Reporter: Randall Hauch
When attempting to restart a connector, the following is logged by Connect:
{code:java}
ERROR Uncaught exception in REST call to
/connectors/my-connector/tasks/0/restart
(org.apache.kafka.connect.runtime.rest.errors.ConnectExceptionMapper)
java.lang.IllegalArgumentException: "uriTemplate" parameter is null.
at
org.glassfish.jersey.uri.internal.JerseyUriBuilder.uri(JerseyUriBuilder.java:189)
at
org.glassfish.jersey.uri.internal.JerseyUriBuilder.uri(JerseyUriBuilder.java:72)
at javax.ws.rs.core.UriBuilder.fromUri(UriBuilder.java:96)
at
org.apache.kafka.connect.runtime.rest.resources.ConnectorsResource.completeOrForwardRequest(ConnectorsResource.java:263)
at
org.apache.kafka.connect.runtime.rest.resources.ConnectorsResource.completeOrForwardRequest(ConnectorsResource.java:298)
at
org.apache.kafka.connect.runtime.rest.resources.ConnectorsResource.restartTask(ConnectorsResource.java:218)
{code}
Resubmitting the restart REST request will usually resolve the problem.
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