Kafka版本-1.0.1
我在随机的间隔收到以下异常。尝试将request.timeout.ms增加到5分钟，但仍然继续以随机间隔（几个小时）超时。目前尚不清楚为什么会出现异常，但重启似乎可以从其离开的位置恢复，但需要手动执行。因此，尝试启用重试，但这似乎没有效果，因为我在日志中看不到任何重试（意思是失败，然后第一次尝试，再次失败，然后第二次，直到最大重试次数）。您能否说明以下异常，并建议我们如何让Kafka流应用程序在发生此异常时继续运行，也许再试一次？如果我们需要增加request.timeout.ms的最大值，那么我们需要注意的缺点是什么，这意味着当代理失败时，我们不应该让线程无限期地进入挂起状态吗？
props.put（ProducerConfig.RETRIES_CONFIG，3）;
2018-07-05 06:04:25 ERROR Housestream:91 - Unknown Exception occurred
org.apache.kafka.streams.errors.StreamsException: task [1_1] Abort sending since an error caught with a previous record (key GCB21K1X value [L@5e86f18a timestamp 1530783812110)
to topic housestream-digitstore-changelog due to org.apache.kafka.common.errors.TimeoutException: Expiring 201 record(s) for housestream-digitstore-changelog: 30144 ms has passed since last append.
at org.apache.kafka.streams.processor.internals.RecordCollectorImpl$1.onCompletion(RecordCollectorImpl.java:118)
at org.apache.kafka.clients.producer.internals.ProducerBatch.completeFutureAndFireCallbacks(ProducerBatch.java:204)
at org.apache.kafka.clients.producer.internals.ProducerBatch.done(ProducerBatch.java:187)
at org.apache.kafka.clients.producer.internals.Sender.failBatch(Sender.java:627)
at org.apache.kafka.clients.producer.internals.Sender.sendProducerData(Sender.java:287)
at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:238)
at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:163)
at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.kafka.common.errors.TimeoutException: Expiring 201 record(s) for housestream-digitstore-changelog: 30144 ms has passed since last append
试图将请求超时增加到最大整数值，但遇到另一个超时异常。
2018-07-05 12:22:15 ERROR Housestream:179 - Unknown Exception occurred
org.apache.kafka.streams.errors.StreamsException: task [1_0] Exception caught while punctuating processor 'validatequote'
at org.apache.kafka.streams.processor.internals.StreamTask.punctuate(StreamTask.java:267)
at org.apache.kafka.streams.processor.internals.PunctuationQueue.mayPunctuate(PunctuationQueue.java:54)
at org.apache.kafka.streams.processor.internals.StreamTask.maybePunctuateSystemTime(StreamTask.java:619)
at org.apache.kafka.streams.processor.internals.AssignedTasks.punctuate(AssignedTasks.java:430)
at org.apache.kafka.streams.processor.internals.TaskManager.punctuate(TaskManager.java:324)
at org.apache.kafka.streams.processor.internals.StreamThread.punctuate(StreamThread.java:969)
at org.apache.kafka.streams.processor.internals.StreamThread.runOnce(StreamThread.java:834)
at org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:774)
at org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:744)
Caused by: org.apache.kafka.streams.errors.StreamsException: task [1_1] Abort sending since an error caught with a previous record (key 32342 value com.int.digital.QUOTE@2c73fa63 timestamp 153083237883) to topic digital_quote due to org.apache.kafka.common.errors.TimeoutException: Failed to allocate memory within the configured max blocking time 60000 ms..
at org.apache.kafka.streams.processor.internals.RecordCollectorImpl$1.onCompletion(RecordCollectorImpl.java:118)
at org.apache.kafka.clients.producer.KafkaProducer.doSend(KafkaProducer.java:819)
at org.apache.kafka.clients.producer.KafkaProducer.send(KafkaProducer.java:760)
at org.apache.kafka.streams.processor.internals.RecordCollectorImpl.send(RecordCollectorImpl.java:100)
at org.apache.kafka.streams.processor.internals.RecordCollectorImpl.send(RecordCollectorImpl.java:78)
at org.apache.kafka.streams.processor.internals.SinkNode.process(SinkNode.java:87)
at org.apache.kafka.streams.processor.internals.ProcessorContextImpl.forward(ProcessorContextImpl.java:113)
at org.cox.processor.CheckQuote.handleTasks(CheckQuote.java:122)
at org.cox.processor.CheckQuote$1.punctuate(CheckQuote.java:145)
at org.apache.kafka.streams.processor.internals.ProcessorNode$4.run(ProcessorNode.java:131)
at org.apache.kafka.streams.processor.internals.StreamsMetricsImpl.measureLatencyNs(StreamsMetricsImpl.java:208)
at org.apache.kafka.streams.processor.internals.ProcessorNode.punctuate(ProcessorNode.java:134)
at org.apache.kafka.streams.processor.internals.StreamTask.punctuate(StreamTask.java:263)
... 8 more
Caused by: org.apache.kafka.common.errors.TimeoutException: Failed to allocate memory within the configured max blocking time 60000 ms.