Я пытаюсь использовать Spring Data Redis для использования потока Redis с использованием групп потребителей, но продолжаю получать следующее исключение:
Caused by: io.lettuce.core.RedisCommandExecutionException: NOGROUP No such key 'event-stream' or consumer group 'my-group' in XREADGROUP with GROUP option
Похоже, в сообщении указывается, что сначала мне нужно создать потребителя. группа? Но документация не дает никаких ссылок на это: https://github.com/spring-projects/spring-data-redis/blob/master/src/main/asciidoc/reference/redis-streams.adoc
Версии платформы:
- Spring Boot 2.2.6
- Салат 5.2.2
- Redis 5.0.8
Этот код я использую для потребления потока:
@Bean
@Autowired
public StreamMessageListenerContainer eventStreamPersistenceListenerContainerTwo(RedisConnectionFactory streamRedisConnectionFactory, RedisTemplate streamRedisTemplate) {
StreamMessageListenerContainer.StreamMessageListenerContainerOptions<String, MapRecord<String, String, String>> containerOptions = StreamMessageListenerContainer.StreamMessageListenerContainerOptions
.builder().pollTimeout(Duration.ofMillis(100)).build();
StreamMessageListenerContainer<String, MapRecord<String, String, String>> container = StreamMessageListenerContainer.create(streamRedisConnectionFactory,
containerOptions);
container.receive(Consumer.from("my-group", "my-consumer"),
StreamOffset.create("event-stream", ReadOffset.latest()),
message -> {
System.out.println("MessageId: " + message.getId());
System.out.println("Stream: " + message.getStream());
System.out.println("Body: " + message.getValue());
streamRedisTemplate.opsForStream().acknowledge("my-group", message);
});
/*Subscription subscription = container.receive(StreamOffset.fromStart("event-stream"), message -> {
System.out.println("MessageId: " + message.getId());
System.out.println("Stream: " + message.getStream());
System.out.println("Body: " + message.getValue());
});*/
container.start();
return container;
}
Трассировка полного стека:
org.springframework.data.redis.RedisSystemException: Error in execution; nested exception is io.lettuce.core.RedisCommandExecutionException: NOGROUP No such key 'event-stream' or consumer group 'my-group' in XREADGROUP with GROUP option
at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:54) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:52) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.connection.lettuce.LettuceExceptionConverter.convert(LettuceExceptionConverter.java:41) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.PassThroughExceptionTranslationStrategy.translate(PassThroughExceptionTranslationStrategy.java:44) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.FallbackExceptionTranslationStrategy.translate(FallbackExceptionTranslationStrategy.java:42) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.connection.lettuce.LettuceConnection.convertLettuceAccessException(LettuceConnection.java:270) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.connection.lettuce.LettuceStreamCommands.convertLettuceAccessException(LettuceStreamCommands.java:471) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.connection.lettuce.LettuceStreamCommands.xReadGroup(LettuceStreamCommands.java:361) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.connection.DefaultedRedisConnection.xReadGroup(DefaultedRedisConnection.java:529) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.core.DefaultStreamOperations$4.inRedis(DefaultStreamOperations.java:239) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.core.DefaultStreamOperations$RecordDeserializingRedisCallback.doInRedis(DefaultStreamOperations.java:305) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.core.DefaultStreamOperations$RecordDeserializingRedisCallback.doInRedis(DefaultStreamOperations.java:300) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:228) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.core.RedisTemplate.execute(RedisTemplate.java:188) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.core.AbstractOperations.execute(AbstractOperations.java:96) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.core.DefaultStreamOperations.read(DefaultStreamOperations.java:234) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.stream.DefaultStreamMessageListenerContainer.lambda$getReadFunction$3(DefaultStreamMessageListenerContainer.java:236) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.stream.StreamPollTask.doLoop(StreamPollTask.java:138) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at org.springframework.data.redis.stream.StreamPollTask.run(StreamPollTask.java:123) ~[spring-data-redis-2.2.6.RELEASE.jar:2.2.6.RELEASE]
at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]
Caused by: io.lettuce.core.RedisCommandExecutionException: NOGROUP No such key 'event-stream' or consumer group 'my-group' in XREADGROUP with GROUP option
at io.lettuce.core.ExceptionFactory.createExecutionException(ExceptionFactory.java:135) ~[lettuce-core-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at io.lettuce.core.ExceptionFactory.createExecutionException(ExceptionFactory.java:108) ~[lettuce-core-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at io.lettuce.core.protocol.AsyncCommand.completeResult(AsyncCommand.java:120) ~[lettuce-core-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at io.lettuce.core.protocol.AsyncCommand.complete(AsyncCommand.java:111) ~[lettuce-core-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at io.lettuce.core.protocol.CommandWrapper.complete(CommandWrapper.java:59) ~[lettuce-core-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at io.lettuce.core.protocol.CommandHandler.complete(CommandHandler.java:654) ~[lettuce-core-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at io.lettuce.core.protocol.CommandHandler.decode(CommandHandler.java:614) ~[lettuce-core-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at io.lettuce.core.protocol.CommandHandler.channelRead(CommandHandler.java:565) ~[lettuce-core-5.2.2.RELEASE.jar:5.2.2.RELEASE]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.48.Final.jar:4.1.48.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.48.Final.jar:4.1.48.Final]
at io.netty.channel.AbstractChannelHandlerContext.fireChannelRead(AbstractChannelHandlerContext.java:357) ~[netty-transport-4.1.48.Final.jar:4.1.48.Final]
at io.netty.channel.DefaultChannelPipeline$HeadContext.channelRead(DefaultChannelPipeline.java:1410) ~[netty-transport-4.1.48.Final.jar:4.1.48.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:379) ~[netty-transport-4.1.48.Final.jar:4.1.48.Final]
at io.netty.channel.AbstractChannelHandlerContext.invokeChannelRead(AbstractChannelHandlerContext.java:365) ~[netty-transport-4.1.48.Final.jar:4.1.48.Final]
at io.netty.channel.DefaultChannelPipeline.fireChannelRead(DefaultChannelPipeline.java:919) ~[netty-transport-4.1.48.Final.jar:4.1.48.Final]
at io.netty.channel.nio.AbstractNioByteChannel$NioByteUnsafe.read(AbstractNioByteChannel.java:163) ~[netty-transport-4.1.48.Final.jar:4.1.48.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:714) ~[netty-transport-4.1.48.Final.jar:4.1.48.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:650) ~[netty-transport-4.1.48.Final.jar:4.1.48.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:576) ~[netty-transport-4.1.48.Final.jar:4.1.48.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) ~[netty-transport-4.1.48.Final.jar:4.1.48.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) ~[netty-common-4.1.48.Final.jar:4.1.48.Final]
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.48.Final.jar:4.1.48.Final]
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.48.Final.jar:4.1.48.Final]
... 1 common frames omitted