骆驼-netty4：io.netty.util.internal.OutOfDirectMemoryError

问：

我已经浏览了以前所有的时间，有人问过这个问题的某些版本。 以下是答案的概述。

悬而未决：

• 如何查找以下 netty 错误的根本原因： io.netty.util.internal.OutOfDirectMemoryError： failed to allocate 16777216 byte（s）

• 网络：io.netty.util.internal.OutOfDirectMemoryError

• 我已启用 ResourceLeakDetector，但收到 OutOfDirectMemoryError 而不是 Netty 内存泄漏错误

“只是记忆”：

• reactor.netty.ReactorNetty$InternalNettyException：io.netty.util.internal.OutOfDirectMemoryError：无法分配直接内存的16777216字节

“将 AUTO_READ 设置为 False”：

• Netty 服务器内存使用率不断增加，最终因 io.netty.util.internal.OutOfDirectMemoryError 而崩溃

• 为什么 Netty 4 “代理”示例必须将通道“AUTO_READ”设置为 false

• 未调用 Netty ChannelRead 方法。

就我而言，我在 Apache Karaf 内部，我已经有高达 2GB 的直接内存，我无法进一步提升它。我将骆驼上下文传递给我的豆子以获得骆驼。然后，我只是将XML发送到一个队列，该队列将转到bean。Netty 甚至没有在这项服务中使用，这有点奇怪。因此，它必须位于 ActiveMQ Artemis 的引擎盖下。我不确定当我自己没有配置 Netty 时，我会在哪里将“auto_read”设置为 false，并且 Camel 没有它的设置。producerTemplate

producerTemplate.sendBody(queueName, xStream.toXML(corMessage));

这是我的例外（经过数周的良好运行）：

io.netty.util.internal.OutOfDirectMemoryError: failed to allocate 14379335 byte(s) of direct memory (used: 1895825408, max: 1908932608)
    at io.netty.util.internal.PlatformDependent.incrementMemoryCounter(PlatformDependent.java:806)
    at io.netty.util.internal.PlatformDependent.allocateDirectNoCleaner(PlatformDependent.java:735)
    at io.netty.buffer.PoolArena$DirectArena.allocateDirect(PoolArena.java:649)
    at io.netty.buffer.PoolArena$DirectArena.newUnpooledChunk(PoolArena.java:638)
    at io.netty.buffer.PoolArena.allocateHuge(PoolArena.java:214)
    at io.netty.buffer.PoolArena.allocate(PoolArena.java:141)
    at io.netty.buffer.PoolArena.allocate(PoolArena.java:126)
    at io.netty.buffer.PooledByteBufAllocator.newDirectBuffer(PooledByteBufAllocator.java:396)
    at io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:188)
    at io.netty.buffer.AbstractByteBufAllocator.directBuffer(AbstractByteBufAllocator.java:179)
    at org.apache.activemq.artemis.core.remoting.impl.netty.NettyConnection.createTransportBuffer(NettyConnection.java:253)
    at org.apache.activemq.artemis.spi.core.protocol.AbstractRemotingConnection.createTransportBuffer(AbstractRemotingConnection.java:189)
    at org.apache.activemq.artemis.core.protocol.core.impl.PacketImpl.createPacket(PacketImpl.java:356)
    at org.apache.activemq.artemis.core.protocol.core.impl.PacketImpl.encode(PacketImpl.java:322)
    at org.apache.activemq.artemis.core.protocol.core.impl.ChannelImpl.sendBlocking(ChannelImpl.java:475)
    at org.apache.activemq.artemis.core.protocol.core.impl.ChannelImpl.sendBlocking(ChannelImpl.java:434)
    at org.apache.activemq.artemis.core.protocol.core.impl.ActiveMQSessionContext.sendFullMessage(ActiveMQSessionContext.java:552)
    at org.apache.activemq.artemis.core.client.impl.ClientProducerImpl.sendRegularMessage(ClientProducerImpl.java:296)
    at org.apache.activemq.artemis.core.client.impl.ClientProducerImpl.doSend(ClientProducerImpl.java:268)
    at org.apache.activemq.artemis.core.client.impl.ClientProducerImpl.send(ClientProducerImpl.java:143)
    at org.apache.activemq.artemis.core.client.impl.ClientProducerImpl.send(ClientProducerImpl.java:125)
    at org.apache.activemq.artemis.jms.client.ActiveMQMessageProducer.doSendx(ActiveMQMessageProducer.java:483)
    at org.apache.activemq.artemis.jms.client.ActiveMQMessageProducer.send(ActiveMQMessageProducer.java:220)
    at org.apache.activemq.jms.pool.PooledProducer.send(PooledProducer.java:95)
    at org.apache.activemq.jms.pool.PooledProducer.send(PooledProducer.java:66)
    at org.springframework.jms.core.JmsTemplate.doSend(JmsTemplate.java:634)
    at org.apache.camel.component.jms.JmsConfiguration$CamelJmsTemplate.doSend(JmsConfiguration.java:647)
    at org.apache.camel.component.jms.JmsConfiguration$CamelJmsTemplate.doSendToDestination(JmsConfiguration.java:586)
    at org.apache.camel.component.jms.JmsConfiguration$CamelJmsTemplate.access$100(JmsConfiguration.java:528)
    at org.apache.camel.component.jms.JmsConfiguration$CamelJmsTemplate$1.doInJms(JmsConfiguration.java:542)
    at org.springframework.jms.core.JmsTemplate.execute(JmsTemplate.java:504)
    at org.apache.camel.component.jms.JmsConfiguration$CamelJmsTemplate.send(JmsConfiguration.java:539)
    at org.apache.camel.component.jms.JmsProducer.doSend(JmsProducer.java:440)
    at org.apache.camel.component.jms.JmsProducer.processInOnly(JmsProducer.java:394)
    at org.apache.camel.component.jms.JmsProducer.process(JmsProducer.java:157)
    at org.apache.camel.processor.SharedCamelInternalProcessor.process(SharedCamelInternalProcessor.java:186)
    at org.apache.camel.processor.SharedCamelInternalProcessor.process(SharedCamelInternalProcessor.java:86)
    at org.apache.camel.impl.ProducerCache$1.doInProducer(ProducerCache.java:528)
    at org.apache.camel.impl.ProducerCache$1.doInProducer(ProducerCache.java:493)
    at org.apache.camel.impl.ProducerCache.doInProducer(ProducerCache.java:369)
    at org.apache.camel.impl.ProducerCache.sendExchange(ProducerCache.java:493)
    at org.apache.camel.impl.ProducerCache.send(ProducerCache.java:229)
    at org.apache.camel.impl.DefaultProducerTemplate.send(DefaultProducerTemplate.java:144)
    at org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:161)
    at org.apache.camel.impl.DefaultProducerTemplate.sendBody(DefaultProducerTemplate.java:168)

有人能帮我调试这个吗？