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ASF GitHub Bot commented on SAMZA-1539: --------------------------------------- Github user asfgit closed the pull request at: https://github.com/apache/samza/pull/390 > KafkaProducer potential hang on close() when task.drop.producer.errors==true > ---------------------------------------------------------------------------- > > Key: SAMZA-1539 > URL: https://issues.apache.org/jira/browse/SAMZA-1539 > Project: Samza > Issue Type: Bug > Reporter: Jake Maes > Assignee: Jake Maes > Fix For: 0.15.0 > > > The issue is caused by 2 bad behaviors: > 1. KafkaProducer.close() does an unbounded thread.join() even when a force > close (timeout == 0 ms) is specified. > 2. KafkaSystemProducer.handleSendException() has a synchronized block to > recreate the producer when task.drop.producer.errors==true. When the IO > thread is waiting on the synchronized block, it prevents the KafkaProducer > from joining the IO thread. > Fixing either one will fix the issue, but we will close this ticket as soon > as the Samza side is tested and committed. -- This message was sent by Atlassian JIRA (v6.4.14#64029)