Github user anmolnar commented on a diff in the pull request:
https://github.com/apache/zookeeper/pull/700#discussion_r235013286
--- Diff:
zookeeper-server/src/main/java/org/apache/zookeeper/server/NIOServerCnxnFactory.java
---
@@ -209,6 +209,8 @@ public void run() {
LOG.warn("Ignoring unexpected exception", e);
}
}
+ } catch (IOException e) {
+ LOG.error("Exception when running accept thread. Unable to
register selector?", e);
--- End diff --
3.4 doesn't have this issue, because the selector is explicitly closed in
the shutdown method. In 3.5 and master only the owning thread (accept) is able
to close it, but it won't, if it doesn't even started.
I'll do the test that you suggested, however I'm not sure how port binding
is related to selector registration.
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