是什么部署模式呢？standalone？ 之前任务运行一段时间报错之后，重新运行的时候是所有 TM 都重启了吗？还是有复用之前的 TM？
Thank you~ Xintong Song On Mon, Nov 16, 2020 at 5:53 PM 史 正超 <[email protected]> wrote: > 使用的是rocksdb, 并行度是5，1个tm, 5个slot，tm 内存给 > 10G，启动任务报下面的错误。之前有启动成功过，运行一段时间后，也是报内存溢出，然后接成原来的offset启动任务，直接启动不起来了。 > > 2020-11-16 17:44:52 > java.lang.OutOfMemoryError: Direct buffer memory. The direct out-of-memory > error has occurred. This can mean two things: either job(s) require(s) a > larger size of JVM direct memory or there is a direct memory leak. The > direct memory can be allocated by user code or some of its dependencies. In > this case 'taskmanager.memory.task.off-heap.size' configuration option > should be increased. Flink framework and its dependencies also consume the > direct memory, mostly for network communication. The most of network memory > is managed by Flink and should not result in out-of-memory error. In > certain special cases, in particular for jobs with high parallelism, the > framework may require more direct memory which is not managed by Flink. In > this case 'taskmanager.memory.framework.off-heap.size' configuration option > should be increased. If the error persists then there is probably a direct > memory leak in user code or some of its dependencies which has to be > investigated and fixed. The task executor has to be shutdown... > at java.nio.Bits.reserveMemory(Bits.java:658) > at java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:123) > at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:311) > at sun.nio.ch.Util.getTemporaryDirectBuffer(Util.java:174) > at sun.nio.ch.IOUtil.read(IOUtil.java:195) > at sun.nio.ch.SocketChannelImpl.read(SocketChannelImpl.java:380) > at > org.apache.flink.kafka011.shaded.org.apache.kafka.common.network.PlaintextTransportLayer.read(PlaintextTransportLayer.java:109) > at > org.apache.flink.kafka011.shaded.org.apache.kafka.common.network.NetworkReceive.readFromReadableChannel(NetworkReceive.java:101) > at > org.apache.flink.kafka011.shaded.org.apache.kafka.common.network.NetworkReceive.readFrom(NetworkReceive.java:75) > at > org.apache.flink.kafka011.shaded.org.apache.kafka.common.network.KafkaChannel.receive(KafkaChannel.java:203) > at > org.apache.flink.kafka011.shaded.org.apache.kafka.common.network.KafkaChannel.read(KafkaChannel.java:167) > at > org.apache.flink.kafka011.shaded.org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:381) > at > org.apache.flink.kafka011.shaded.org.apache.kafka.common.network.Selector.poll(Selector.java:326) > at > org.apache.flink.kafka011.shaded.org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:433) > at > org.apache.flink.kafka011.shaded.org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:232) > at > org.apache.flink.kafka011.shaded.org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:208) > at > org.apache.flink.kafka011.shaded.org.apache.kafka.clients.consumer.KafkaConsumer.pollOnce(KafkaConsumer.java:1096) > at > org.apache.flink.kafka011.shaded.org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1043) > at > org.apache.flink.streaming.connectors.kafka.internal.KafkaConsumerThread.getRecordsFromKafka(KafkaConsumerThread.java:535) > at > org.apache.flink.streaming.connectors.kafka.internal.KafkaConsumerThread.run(KafkaConsumerThread.java:264) > > >
