[ https://issues.apache.org/jira/browse/KAFKA-9472?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Chris Egerton reassigned KAFKA-9472: ------------------------------------ Assignee: Chris Egerton > Reducing number of tasks for connector causes deleted tasks to show as > UNASSIGNED > --------------------------------------------------------------------------------- > > Key: KAFKA-9472 > URL: https://issues.apache.org/jira/browse/KAFKA-9472 > Project: Kafka > Issue Type: Bug > Components: KafkaConnect > Affects Versions: 2.0.0, 2.0.1, 2.1.0, 2.2.0, 2.1.1, 2.3.0, 2.2.1, 2.2.2, > 2.4.0, 2.3.1 > Reporter: Chris Egerton > Assignee: Chris Egerton > Priority: Major > > If a connector is successfully created with {{t1}} running tasks and then > reconfigured to use {{t1 - n}} tasks (where {{t1}} and {{n}} are both whole > numbers and {{n}} is strictly less than {{t1}}), the connector should then > list {{t1 - n}} total tasks in its status (which can be queried via the > {{/connectors/:name:/status}} endpoint or the {{/connectors}} endpoint with > the {{expand}} URL query parameter set to {{status}}). > However, the connector will instead continue to list {{t1}} total tasks in > its status, with {{n}} of them being listed as {{UNASSIGNED}} and the > remaining {{t1 - n}} of them being listed as {{STARTED}}. > This is because the only time a task status is removed from the status > backing store (as opposed to simply being updated to {{UNASSIGNED}}) is when > its connector is deleted. See relevant code snippets from the > [AbstractHerder|https://github.com/apache/kafka/blob/df13fc93d0aebfe0ecc40dd4af3c5fb19b35f710/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/AbstractHerder.java#L187-L192] > and > [DistributedHerder|https://github.com/apache/kafka/blob/df13fc93d0aebfe0ecc40dd4af3c5fb19b35f710/connect/runtime/src/main/java/org/apache/kafka/connect/runtime/distributed/DistributedHerder.java#L1511-L1520] > classes. -- This message was sent by Atlassian Jira (v8.3.4#803005)