代码如下:
public static void main(String[] args) throws IOException {
Map<String, Object> props = new HashMap<>();
props.put(StreamsConfig.APPLICATION_ID_CONFIG, "my-stream-processing-application");
props.put(StreamsConfig.BOOTSTRAP_SERVERS_CONFIG, "vrv145:9092,vrv148:9092");
props.put(StreamsConfig.KEY_SERDE_CLASS_CONFIG, Serdes.String().getClass().getName());
props.put(StreamsConfig.VALUE_SERDE_CLASS_CONFIG, Serdes.String().getClass().getName());
StreamsConfig config = new StreamsConfig(props);
KStreamBuilder builder = new KStreamBuilder();
KStream<String, String> source = builder.stream("net");
KTable<String, Long> counts = source
.flatMapValues(value -> Arrays.asList(value.toLowerCase(Locale.getDefault()).split(" ")))
.map((key, value) -> new KeyValue<>(value, value)).groupByKey().count("Counts");
counts.print();
KafkaStreams streams = new KafkaStreams(builder, config);
streams.start();
}
报错如下:
Exception in thread "StreamThread-1" java.lang.UnsatisfiedLinkError: C:UserslizjAppDataLocalTemplibrocksdbjni4991853238127536656.dll: Can't find dependent libraries
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1937)
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1822)
at java.lang.Runtime.load0(Runtime.java:809)
at java.lang.System.load(System.java:1086)
at org.rocksdb.NativeLibraryLoader.loadLibraryFromJar(NativeLibraryLoader.java:78)
at org.rocksdb.NativeLibraryLoader.loadLibrary(NativeLibraryLoader.java:56)
at org.rocksdb.RocksDB.loadLibrary(RocksDB.java:64)
at org.rocksdb.RocksDB.<clinit>(RocksDB.java:35)
at org.rocksdb.Options.<clinit>(Options.java:22)
at org.apache.kafka.streams.state.internals.RocksDBStore.openDB(RocksDBStore.java:115)
at org.apache.kafka.streams.state.internals.RocksDBStore.init(RocksDBStore.java:148)
at org.apache.kafka.streams.state.internals.ChangeLoggingKeyValueBytesStore.init(ChangeLoggingKeyValueBytesStore.java:39)
at org.apache.kafka.streams.state.internals.MeteredKeyValueStore$7.run(MeteredKeyValueStore.java:100)
at org.apache.kafka.streams.processor.internals.StreamsMetricsImpl.measureLatencyNs(StreamsMetricsImpl.java:188)
at org.apache.kafka.streams.state.internals.MeteredKeyValueStore.init(MeteredKeyValueStore.java:131)
at org.apache.kafka.streams.state.internals.CachingKeyValueStore.init(CachingKeyValueStore.java:62)
at org.apache.kafka.streams.processor.internals.AbstractTask.initializeStateStores(AbstractTask.java:86)
at org.apache.kafka.streams.processor.internals.StreamTask.<init>(StreamTask.java:141)
at org.apache.kafka.streams.processor.internals.StreamThread.createStreamTask(StreamThread.java:834)
at org.apache.kafka.streams.processor.internals.StreamThread$TaskCreator.createTask(StreamThread.java:1207)
at org.apache.kafka.streams.processor.internals.StreamThread$AbstractTaskCreator.retryWithBackoff(StreamThread.java:1180)
at org.apache.kafka.streams.processor.internals.StreamThread.addStreamTasks(StreamThread.java:937)
at org.apache.kafka.streams.processor.internals.StreamThread.access$500(StreamThread.java:69)
at org.apache.kafka.streams.processor.internals.StreamThread$1.onPartitionsAssigned(StreamThread.java:236)
at org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.onJoinComplete(ConsumerCoordinator.java:255)
at org.apache.kafka.clients.consumer.internals.AbstractCoordinator.joinGroupIfNeeded(AbstractCoordinator.java:339)
at org.apache.kafka.clients.consumer.internals.AbstractCoordinator.ensureActiveGroup(AbstractCoordinator.java:303)
at org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.poll(ConsumerCoordinator.java:286)
at org.apache.kafka.clients.consumer.KafkaConsumer.pollOnce(KafkaConsumer.java:1030)
at org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:995)
at org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:582)
at org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:368)
https://github.com/confluentinc/kafka-streams-examples/issues/91
Problem solved by changing jre 32-bit to 64-bit.
求教大神,这个怎么解决啊
你解决这个问题了吗?我也遇到这个问题了
我用的kafka版本是0.10.2.0
你的答案