Danny Cranmer created FLINK-21228:
-------------------------------------
Summary: [Kinesis][Producer] Deadlock in KinesisProducer
Key: FLINK-21228
URL: https://issues.apache.org/jira/browse/FLINK-21228
Project: Flink
Issue Type: Bug
Components: Connectors / Kinesis
Affects Versions: 1.12.1
Reporter: Danny Cranmer
*Background*
Application sink failed and resulted in:
- Indefinite backpressure being applied
- Exception never thrown causing job to fail
Application running with:
{code:java}
flinkKinesisProducer.setQueueLimit(1);
flinkKinesisProducer.setFailOnError(true);
{code}
- {{KinesisProducer}} is waiting for queue to empty before sending the next
record
([code|https://github.com/apache/flink/blob/master/flink-connectors/flink-connector-kinesis/src/main/java/org/apache/flink/streaming/connectors/kinesis/FlinkKinesisProducer.java#L303])
- KPL ran out of memory, which raised an error, however this is processed async
([code|https://github.com/apache/flink/blob/master/flink-connectors/flink-connector-kinesis/src/main/java/org/apache/flink/streaming/connectors/kinesis/FlinkKinesisProducer.java#L275])
- {{KinesisProducer}} would have rethrown the error and restarted the job,
however operator stuck in an infinite loop enforcing the queue limit (which
never clears)
([code|https://github.com/apache/flink/blob/master/flink-connectors/flink-connector-kinesis/src/main/java/org/apache/flink/streaming/connectors/kinesis/FlinkKinesisProducer.java#L306])
*Proposal*
- {{checkAndPropagateAsyncError()}} while enforcing queue limit in
{{enforceQueueLimit()}} to break deadlock
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
