Kirk True created KAFKA-13558:
---------------------------------
Summary: NioEchoServer fails to close resources
Key: KAFKA-13558
URL: https://issues.apache.org/jira/browse/KAFKA-13558
Project: Kafka
Issue Type: Bug
Affects Versions: 3.0.0
Reporter: Kirk True
Assignee: Kirk True
Fix For: 3.2.0
`NioEchoServer` does not close the selectors that it opens. The result of this
can be manifested in flaky tests because the JVM/OS can run out of available
file descriptors if the `NioEchoServer` is used in a lot of tests. Each test
then leaks a handful of descriptors, and eventually the 'too many open files'
error is thrown.
This was compounded because the `NioEchoServer` intentionally doesn't output
stack traces, so the underlying issue was hidden and was manifest in odd
(flaky) ways in tests.
--
This message was sent by Atlassian Jira
(v8.20.1#820001)
