Java Akka-超出GC开销限制

我得到一个：

java.lang.OutOfMemoryError: GC overhead limit exceeded
    at java.nio.HeapByteBuffer.asReadOnlyBuffer(HeapByteBuffer.java:117)
    at akka.util.ByteString$ByteString1.asByteBuffer(ByteString.scala:153)
    at akka.util.ByteString$ByteString1C.asByteBuffer(ByteString.scala:104)

使用此Akka代码：

  var buffer = ByteString.apply()
  val MsgSize = 208

  protected def onMessage(rawMsg: ByteString) = {

    // Messages under the size are not processed in while loop.  This line appends them
    // to be processed when enough data is present.
    buffer ++= rawMsg

    // Process multiple messages if present.
    while (buffer.size >= MsgSize) {
      // Process each message, leaves remainder for later processing.
    }

    // To prevent the buffer from growing uncontrollably.
    // It is possible that at some point this fails to run for a long time 
    // which could cause the out of memory exception.
    if (buffer.isEmpty) buffer = ByteString.apply()
  }

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看起来连接可能是问题所在。这是正确的方法吗？

事实证明我们必须这样做：

while (buffer.size >= MsgSize) {
  val (msg, rem) = buffer.splitAt(MsgSize)

  // Process msg

  // buffer is now what remains
  buffer = rem
}

---

因为从缓冲区读取不会增加位置。

缓冲区是否会在某个点减少或清空？可能是环路？在我看来，这不是保证。您是否可以使用更严格定义的消息类型，而不影响字节？即使有注释，我也看不到if（buffer.isEmpty）buffer=ByteString.apply（）的意义。此外，您还说您处理多条消息（如果存在）。缓冲区中不应存在多条消息的情况。您可以自行处理rawMsg，处理后，下一个将从邮箱中提取。@AleksandarStojadinovic，请稍候。缓冲区没有正确清空。