Sachin, Not sure if this will help, but you might want to try running https://cwiki.apache.org/confluence/display/KAFKA/System+Tools#SystemTools-DumpLogSegment on the partition that is causing you problems.
Thanks Damian On Thu, 30 Mar 2017 at 14:29 Michael Noll <mich...@confluent.io> wrote: > Sachin, > > there's a JIRA that seems related to what you're seeing: > https://issues.apache.org/jira/browse/KAFKA-4740 > > Perhaps you could check the above and report back? > > -Michael > > > > > On Thu, Mar 30, 2017 at 3:23 PM, Michael Noll <mich...@confluent.io> > wrote: > > > Hmm, I re-read the stacktrace again. It does look like the value-side > > being the culprit (as Sachin suggested earlier). > > > > -Michael > > > > > > On Thu, Mar 30, 2017 at 3:18 PM, Michael Noll <mich...@confluent.io> > > wrote: > > > >> Sachin, > >> > >> you have this line: > >> > >> > builder.stream(Serdes.String(), serde, "advice-stream") > >> > >> Could the problem be that not the record values are causing the problem > >> -- because your value deserializer does try-catch any such errors -- but > >> that the record *keys* are malformed? The built-in `Serdes.String()` > does > >> not try-catch deserialization errors, and from a quick look at the > source > >> it seems that the `Fetcher` class (clients/src/main/java/org/apa > >> che/kafka/clients/consumer/internals/Fetcher.java) is throwing your > >> error above ("Error deserializing key/value for partition..."), and the > >> Fetcher is swallowing the more specific SerializationException of > >> `String.Serdes()` (but it will include the original exception/Throwable > in > >> its own SerializationException). > >> > >> -Michael > >> > >> > >> > >> On Thu, Mar 30, 2017 at 2:52 PM, Sachin Mittal <sjmit...@gmail.com> > >> wrote: > >> > >>> My streams application does run in debug mode only. > >>> Also I have checked the code around these lines > >>> > >>> at org.apache.kafka.common.utils.Utils.sizeDelimited(Utils.java:791) > >>> ~[kafka-clients-0.10.2.0.jar:na] > >>> at org.apache.kafka.common.record.Record.value(Record.java:268) > >>> ~[kafka-clients-0.10.2.0.jar:na] > >>> at org.apache.kafka.clients.consumer.internals.Fetcher.parseRec > >>> ord(Fetcher.java:867) > >>> ~[kafka-clients-0.10.2.0.jar:na] > >>> > >>> I don't see any log statement which will give me more information. > >>> > >>> https://github.com/apache/kafka/blob/0.10.2/clients/src/main > >>> /java/org/apache/kafka/clients/consumer/internals/Fetcher.java#L867 > >>> > >>> The issue is happening at this line and perhaps handling the exception > >>> and > >>> setting the value to be null may be better options. > >>> Yes at client side nothing can be done because exception is happening > >>> before this.valueDeserializer.deserialize can be called. > >>> > >>> Thanks > >>> Sachin > >>> > >>> > >>> On Thu, Mar 30, 2017 at 4:28 PM, Damian Guy <damian....@gmail.com> > >>> wrote: > >>> > >>> > The suggestions in that FAQ won't help as it is too late, i.e., the > >>> message > >>> > has already been received into Streams. > >>> > You could create a simple app that uses the Consumer, seeks to the > >>> offset, > >>> > and tries to read the message. If you did this in debug mode you > might > >>> find > >>> > out some more information. > >>> > > >>> > > >>> > On Thu, 30 Mar 2017 at 11:50 Sachin Mittal <sjmit...@gmail.com> > wrote: > >>> > > >>> > > Well I try to read that offset via kafka-console-consumer.sh too > and > >>> it > >>> > > fails with same error. > >>> > > > >>> > > So was wondering if I can apply any of the suggestion as per > >>> > > > >>> > > http://docs.confluent.io/3.2.0/streams/faq.html#handling- > >>> > corrupted-records-and-deserialization-errors-poison-pill-messages > >>> > > > >>> > > If there is any other was just to get the contents of that message > it > >>> > would > >>> > > be helpful. > >>> > > > >>> > > Thanks > >>> > > Sachin > >>> > > > >>> > > > >>> > > On Thu, Mar 30, 2017 at 4:11 PM, Damian Guy <damian....@gmail.com> > >>> > wrote: > >>> > > > >>> > > > Hi Sachin, > >>> > > > > >>> > > > Have you tried firing up a consumer (non-streams), seeking to > that > >>> > offset > >>> > > > on the topic and seeing what the message is? Might be easier to > >>> debug? > >>> > > Like > >>> > > > you say, it is failing in the consumer. > >>> > > > Thanks, > >>> > > > Damian > >>> > > > > >>> > > > On Thu, 30 Mar 2017 at 10:35 Sachin Mittal <sjmit...@gmail.com> > >>> wrote: > >>> > > > > >>> > > > > I think I am following the third option. > >>> > > > > > >>> > > > > My pipeline is: > >>> > > > > > >>> > > > > serde= Serdes.serdeFrom(new VSerializer(), new VDeserializer > ()); > >>> > > > > > >>> > > > > builder.stream(Serdes.String(), serde, "advice-stream") > >>> > > > > .filter(new Predicate<String, V>() { ...}) > >>> > > > > .groupByKey() > >>> > > > > .aggregate(new Initializer<V1>() {...}, new > Aggregator<String, > >>> V, > >>> > > V1>() > >>> > > > > {...}, windows, supplier) > >>> > > > > .mapValues(new ValueMapper<V1, V2>() { ... }) > >>> > > > > .foreach(new ForeachAction<Windowed<String>, V2>() {... }); > >>> > > > > > >>> > > > > > >>> > > > > and In VDeserializer (implements Deserializer<V>) I am doing > >>> > something > >>> > > > like > >>> > > > > this: > >>> > > > > > >>> > > > > public V deserialize(String paramString, byte[] > >>> > paramArrayOfByte) { > >>> > > > > if (paramArrayOfByte == null) { return null;} > >>> > > > > V data = null; > >>> > > > > try { > >>> > > > > data = objectMapper.readValue(paramArrayOfByte, new > >>> > > > > TypeReference<V>() {}); > >>> > > > > } catch (Exception e) { > >>> > > > > e.printStackTrace(); > >>> > > > > } > >>> > > > > return data; > >>> > > > > } > >>> > > > > > >>> > > > > So I am catching any exception that may happen when > >>> deserializing the > >>> > > > data. > >>> > > > > > >>> > > > > This is what third option suggest (if I am not mistaken). > >>> > > > > > >>> > > > > Please let me know given the pipeline we which option would be > >>> best > >>> > and > >>> > > > how > >>> > > > > can we incorporate that in our pipeline. > >>> > > > > > >>> > > > > Also not exception is happening when reading from source topic > >>> which > >>> > is > >>> > > > > "advice-stream", so looks like flow is not going to pipeline at > >>> all > >>> > for > >>> > > > us > >>> > > > > to handle. It is terminating right at consumer poll. > >>> > > > > > >>> > > > > Thanks > >>> > > > > Sachin > >>> > > > > > >>> > > > > > >>> > > > > On Thu, Mar 30, 2017 at 2:22 PM, Michael Noll < > >>> mich...@confluent.io> > >>> > > > > wrote: > >>> > > > > > >>> > > > > > Could this be a corrupted message ("poison pill") in your > >>> topic? > >>> > > > > > > >>> > > > > > If so, take a look at > >>> > > > > > http://docs.confluent.io/current/streams/faq.html# > >>> > > > > > > >>> > > > > handling-corrupted-records-and-deserialization-errors- > >>> > > > poison-pill-messages > >>> > > > > > > >>> > > > > > FYI: We're currently investigating a more elegant way to > >>> address > >>> > such > >>> > > > > > poison pill problems. If you have feedback on that front, > feel > >>> > free > >>> > > to > >>> > > > > > share it with us. :-) > >>> > > > > > > >>> > > > > > -Michael > >>> > > > > > > >>> > > > > > > >>> > > > > > > >>> > > > > > > >>> > > > > > On Wed, Mar 29, 2017 at 10:07 PM, Sachin Mittal < > >>> > sjmit...@gmail.com> > >>> > > > > > wrote: > >>> > > > > > > >>> > > > > > > Hi, > >>> > > > > > > This is for first time we are getting a weird exception. > >>> > > > > > > After this the streams caches. > >>> > > > > > > > >>> > > > > > > Only work around is to manually seek and commit offset to a > >>> > greater > >>> > > > > > number > >>> > > > > > > and we are needing this manual intervention again and > again. > >>> > > > > > > > >>> > > > > > > Any idea what is causing it and how can we circumvent this. > >>> > > > > > > > >>> > > > > > > Note this error happens in both cases when 10.2 client or > >>> 10.1.1 > >>> > > > client > >>> > > > > > > connect to kafka server 10.1.1 > >>> > > > > > > > >>> > > > > > > So this does not looks like version issue. > >>> > > > > > > > >>> > > > > > > Also we have following setting > >>> > > > > > > message.max.bytes=5000013 > >>> > > > > > > ConsumerConfig.MAX_PARTITION_FETCH_BYTES_CONFIG, "5048576" > >>> > > > > > > ProducerConfig.MAX_REQUEST_SIZE_CONFIG, "5048576" > >>> > > > > > > > >>> > > > > > > Rest is all default and also increasing the value for > >>> > > > > > > ConsumerConfig.MAX_PARTITION_FETCH_BYTES_CONFIG did not > >>> help. > >>> > > > > > > > >>> > > > > > > Stack trace below. > >>> > > > > > > > >>> > > > > > > Thanks > >>> > > > > > > Sachin > >>> > > > > > > > >>> > > > > > > > >>> > > > > > > org.apache.kafka.common.errors.SerializationException: > Error > >>> > > > > > deserializing > >>> > > > > > > key/value for partition advice-stream-6 at offset 45153795 > >>> > > > > > > java.lang.IllegalArgumentException: null > >>> > > > > > > at java.nio.Buffer.limit(Buffer.java:275) > >>> ~[na:1.8.0_122-ea] > >>> > > > > > > at org.apache.kafka.common.utils. > >>> Utils.sizeDelimited(Utils. > >>> > > > java:791) > >>> > > > > > > ~[kafka-clients-0.10.2.0.jar:na] > >>> > > > > > > at org.apache.kafka.common.record.Record.value(Record. > >>> > java:268) > >>> > > > > > > ~[kafka-clients-0.10.2.0.jar:na] > >>> > > > > > > at org.apache.kafka.clients.consumer.internals.Fetcher. > >>> > > > > > > parseRecord(Fetcher.java:867) > >>> > > > > > > ~[kafka-clients-0.10.2.0.jar:na] > >>> > > > > > > at org.apache.kafka.clients.consumer.internals.Fetcher. > >>> > > > > > > parseCompletedFetch(Fetcher.java:775) > >>> > ~[kafka-clients-0.10.2.0.jar: > >>> > > > na] > >>> > > > > > > at org.apache.kafka.clients.consumer.internals.Fetcher. > >>> > > > > > > fetchedRecords(Fetcher.java:473) > >>> ~[kafka-clients-0.10.2.0.jar: > >>> > na] > >>> > > > > > > at org.apache.kafka.clients.consumer.KafkaConsumer. > >>> > > > > > > pollOnce(KafkaConsumer.java:1062) > >>> ~[kafka-clients-0.10.2.0.jar: > >>> > na] > >>> > > > > > > at org.apache.kafka.clients.consumer.KafkaConsumer.poll( > >>> > > > > > > KafkaConsumer.java:995) > >>> > > > > > > ~[kafka-clients-0.10.2.0.jar:na] > >>> > > > > > > at org.apache.kafka.streams.processor.internals. > >>> > > > StreamThread.runLoop( > >>> > > > > > > StreamThread.java:592) > >>> > > > > > > ~[kafka-streams-0.10.2.1-SNAPSHOT.jar:na] > >>> > > > > > > at org.apache.kafka.streams.processor.internals. > >>> > > > > > > StreamThread.run(StreamThread.java:378) > >>> > ~[kafka-streams-0.10.2.1- > >>> > > > > > > SNAPSHOT.jar:na] > >>> > > > > > > > >>> > > > > > > >>> > > > > > >>> > > > > >>> > > > >>> > > >>> > >> > >> > >> > > > > >
