Rajini Sivaram created KAFKA-2779:
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Summary: Kafka SSL transport layer leaks file descriptors
Key: KAFKA-2779
URL: https://issues.apache.org/jira/browse/KAFKA-2779
Project: Kafka
Issue Type: Bug
Components: network
Affects Versions: 0.9.0.0
Reporter: Rajini Sivaram
Assignee: Rajini Sivaram
Priority: Critical
There is currently no transition from read() to close() in SslTransportLayer to
handle graceful shutdown requests. As a result, Kafka SSL connections are never
shutdown gracefully. In addition to this, close() does not handle ungraceful
termination of connections correctly. If flush() fails because the other end
has performed a close (eg. because graceful termination was not handled), Kafka
prints out a warning and does not close the socket. This leaks file descriptors.
We are seeing a large number of open file descriptors because our health checks
to Kafka result in connections that are neither terminated gracefully nor
closed correctly.
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