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Fix KAFKA-16768

This commit is contained in:
ChangYu Huang 2025-08-04 11:13:46 +08:00
parent ed9acf45b6
commit 790a19d7e8
1 changed files with 13 additions and 4 deletions
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17
core/src/main/scala/kafka/network/SocketServer.scala
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@ -656,6 +656,7 @@ private[kafka] abstract class Acceptor(val socketServer: SocketServer,
// all processors, block until the last one is able to accept a connection.
var retriesLeft = synchronized(processors.length)
var processor: Processor = null
var accepted: Boolean = false
do {
retriesLeft -= 1
processor = synchronized {
@ -665,7 +666,13 @@ private[kafka] abstract class Acceptor(val socketServer: SocketServer,
processors(currentProcessorIndex)
}
currentProcessorIndex += 1
} while (!assignNewConnection(socketChannel, processor, retriesLeft == 0))
accepted = assignNewConnection(socketChannel, processor, retriesLeft == 0)
} while (!accepted && shouldRun.get())
if (!accepted) {
debug(s"Refused connection from ${socketChannel.socket.getRemoteSocketAddress} on" +
s" ${socketChannel.socket.getLocalSocketAddress} because the server is shutting down.")
socketChannel.close()
}
}
} else
throw new IllegalStateException("Unrecognized key state for acceptor thread.")
@ -1153,9 +1160,11 @@ private[kafka] class Processor(
*/
def accept(socketChannel: SocketChannel,
mayBlock: Boolean,
acceptorBlockedPercentMeter: com.yammer.metrics.core.Meter): Boolean = {
acceptorBlockedPercentMeter: com.yammer.metrics.core.Meter): Boolean = synchronized {
val accepted = {
if (newConnections.offer(socketChannel))
if (!shouldRun.get())
false
else if (newConnections.offer(socketChannel))
true
else if (mayBlock) {
val startNs = time.nanoseconds
@ -1262,7 +1271,7 @@ private[kafka] class Processor(
*/
def wakeup(): Unit = selector.wakeup()
def beginShutdown(): Unit = {
def beginShutdown(): Unit = synchronized {
if (shouldRun.getAndSet(false)) {
wakeup()
}