Github user vanzin commented on a diff in the pull request:
https://github.com/apache/spark/pull/2019#discussion_r16728124
--- Diff:
core/src/main/scala/org/apache/spark/network/ConnectionManager.scala ---
@@ -334,17 +338,23 @@ private[spark] class ConnectionManager(
while (allKeys.hasNext) {
val key = allKeys.next()
try {
- if (! key.isValid) {
- logInfo("Key not valid ? " + key)
- throw new CancelledKeyException()
+ key.synchronized {
+ val connection = connectionsByKey.getOrElse(key, null)
+ if (key.channel.isInstanceOf[ServerSocketChannel] ||
+ connection != null && !connection.isClosed) {
+ if (!key.isValid) {
--- End diff --
Merge with previous condition? Also, check looks weird (why check for
ServerSocketChannel?).
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