That would appear to be the case. So here's what I was doing:
1. Used this sort of code to serialize the Avro:
private byte[] serialize(Object obj, Class clz) throws Exception {
SpecificDatumWriter writer = new SpecificDatumWriter<>(clz);
ByteArrayOutputStream out = new ByteArrayOutputStream();
BinaryEncoder encoder = EncoderFactory.get().binaryEncoder(out,
null);
//writer.write(obj, encoder);
//encoder.flush();
out.close();
return out.toByteArray();
}
So that got me a byte array with just the binary representation.
2. Produced that to the Kafka topic.
3. Had an AvroReader variously configured to use schema.name hard set to an
entry on the AvroSchemaRegistry or EmbeddedSchema.
Didn't see any flowfiles get emitted to parse.failure or success.
On Tue, Nov 13, 2018 at 12:50 PM Joe Witt <joe.w...@gmail.com> wrote:
> Mike - so does this mean the parse.failure relationship wasn't working
> though? We should try to dig into this more if you're up for it or
> sharing more details. We dont want the behavior you ran into for
> sure...
> On Tue, Nov 13, 2018 at 12:49 PM Mike Thomsen <mikerthom...@gmail.com>
> wrote:
> >
> > So after a lot of diving into 1.9.X, it **appears** that there was some
> sort of combination w/ the AvroReader + ConsumeKafkaRecord that was
> suppressing errors from being reported. Haven't been able to fully figure
> out what was doing on, but I know one of the contributing factors was that
> my producer (spring boot service, not NiFi) was incorrectly building the
> binary form of the Avro (didn't have embedded schema).
> >
> > Mike
> >
> > On Tue, Nov 13, 2018 at 12:33 PM Joe Witt <joe.w...@gmail.com> wrote:
> >>
> >> Viking
> >>
> >> Just to clarify it isn't that it is trying to merge records to create
> >> larger flow files but rather it is 'playing the kafka interaction as
> >> it lies' so to speak. When polling from Kafka we can get one or more
> >> records. We're just taking advantage of that without trading off
> >> speed.
> >>
> >> Thanks
> >> On Tue, Nov 13, 2018 at 12:24 PM Viking K <cyber_v...@hotmail.com>
> wrote:
> >> >
> >> > Mike, are we talking about complete avro messages or bare records
> (schema is contained inside the avro file or do they use a schema registry)
> >> >
> >> > From my own testing the ConsumeKafkaRecord tries to bundle in the
> incoming messages to create larger flow files.
> >> > Do you use any Kafka headers in the processor?
> >> >
> >> > Also what happens if you try to replicate the behavior of
> ConsumeKafkaRecord like this. I don't know if you need the ConvertRecord
> but it might be needed to pick out a schema name to use as Merge strategy.
> >> > ConsumeKafka -> (ConvertRecord) -> Merge Content
> >> >
> >> > /Viking
> >> > ________________________________
> >> > From: Mike Thomsen <mikerthom...@gmail.com>
> >> > Sent: Tuesday, November 13, 2018 3:02 PM
> >> > To: users@nifi.apache.org
> >> > Subject: Re: ConsumeKafkaRecord won't pull new events from Kafka
> >> >
> >> > Closest thing I see to something that implies something might be awry
> is this in nifi-app.log:
> >> >
> >> > javax.management.InstanceAlreadyExistsException:
> kafka.consumer:type=app-info,id=consumer-1
> >> > at
> com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:437)
> >> > at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerWithRepository(DefaultMBeanServerInterceptor.java:1898)
> >> > at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:966)
> >> > at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:900)
> >> > at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:324)
> >> > at
> com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522)
> >> > at
> org.apache.kafka.common.utils.AppInfoParser.registerAppInfo(AppInfoParser.java:57)
> >> > at
> org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:640)
> >> > at
> org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:512)
> >> > at
> org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:494)
> >> > at
> org.apache.nifi.processors.kafka.pubsub.ConsumerPool.createKafkaConsumer(ConsumerPool.java:143)
> >> > at
> org.apache.nifi.processors.kafka.pubsub.ConsumerPool.obtainConsumer(ConsumerPool.java:107)
> >> > at
> org.apache.nifi.processors.kafka.pubsub.ConsumeKafka.onTrigger(ConsumeKafka.java:359)
> >> > at
> org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
> >> > at
> org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1165)
> >> > at
> org.apache.nifi.controller.tasks.ConnectableTask.invoke(ConnectableTask.java:203)
> >> > at
> org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:117)
> >> > at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> >> > at
> java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
> >> > at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
> >> > at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
> >> > at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> >> > at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> >> > at java.lang.Thread.run(Thread.java:748)
> >> >
> >> >
> >> >
> >> > On Tue, Nov 13, 2018 at 10:00 AM Pierre Villard <
> pierre.villard...@gmail.com> wrote:
> >> >
> >> > Hey Mike,
> >> >
> >> > Anything in the logs?
> >> >
> >> > Pierre
> >> >
> >> > Le mar. 13 nov. 2018 à 15:56, Mike Thomsen <mikerthom...@gmail.com>
> a écrit :
> >> >
> >> > I have an odd situation where I have ConsumeKafkaRecord and
> ConsumeKafka pulling from the same topic under different consumer groups,
> but only the latter will pull new events. I ran into a situation where the
> reader didn't like the Avro data being pulled from the queue and so I
> created new topics and configured both processors to use the new ones.
> However, only the non-record version of the processor will read.
> >> >
> >> > Anyone got suggestions on how to debug this? I'm reasonably familiar
> with Kafka, but can't figure out why ConsumeKafka and the console consumer
> can read the topic, but ConsumeKafkaRecord is acting like there's nothing
> there at all.
> >> >
> >> > Thanks,
> >> >
> >> > Mike
>
