I don't think so--see if you buy my explanation. We previously defaulted to the byte array serializer and it was a source of unending frustration and confusion. Since it wasn't a required config people just went along plugging in whatever objects they had, and thinking that changing the parametric types would somehow help. Then they would get a class case exception and assume our stuff was somehow busted, not realizing we had helpfully configured a type different from what they were passing in under the covers. So I think it is actually good for people to think: how am I serializing my data, and getting that exception will make them ask that question right?
-Jay On Fri, Jan 23, 2015 at 9:06 PM, Joe Stein <joe.st...@stealth.ly> wrote: > Should value.serializer in the new java producer be defaulted to > Array[Byte] ? > > I was working on testing some upgrade paths and got this > > ! return exception in callback when buffer cannot accept message > > ConfigException: Missing required configuration "value.serializer" > which has no default value. (ConfigDef.java:124) > > org.apache.kafka.common.config.ConfigDef.parse(ConfigDef.java:124) > > > > org.apache.kafka.common.config.AbstractConfig.<init>(AbstractConfig.java:48) > > > > org.apache.kafka.clients.producer.ProducerConfig.<init>(ProducerConfig.java:235) > > > > org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:129) > > > ly.stealth.testing.BaseSpec$class.createNewKafkaProducer(BaseSpec.scala:42) > > ly.stealth.testing.KafkaSpec.createNewKafkaProducer(KafkaSpec.scala:36) > > > > ly.stealth.testing.KafkaSpec$$anonfun$3$$anonfun$apply$37.apply(KafkaSpec.scala:175) > > > > ly.stealth.testing.KafkaSpec$$anonfun$3$$anonfun$apply$37.apply(KafkaSpec.scala:170) > > > > On Fri, Jan 23, 2015 at 5:55 PM, Jun Rao <j...@confluent.io> wrote: > > > This is a reminder that the deadline for the vote is this Monday, Jan 26, > > 7pm PT. > > > > Thanks, > > > > Jun > > > > On Wed, Jan 21, 2015 at 8:28 AM, Jun Rao <j...@confluent.io> wrote: > > > >> This is the second candidate for release of Apache Kafka 0.8.2.0. There > >> has been some changes since the 0.8.2 beta release, especially in the > new > >> java producer api and jmx mbean names. It would be great if people can > test > >> this out thoroughly. > >> > >> Release Notes for the 0.8.2.0 release > >> > >> > https://people.apache.org/~junrao/kafka-0.8.2.0-candidate2/RELEASE_NOTES.html > >> > >> *** Please download, test and vote by Monday, Jan 26h, 7pm PT > >> > >> Kafka's KEYS file containing PGP keys we use to sign the release: > >> http://kafka.apache.org/KEYS in addition to the md5, sha1 and sha2 > >> (SHA256) checksum. > >> > >> * Release artifacts to be voted upon (source and binary): > >> https://people.apache.org/~junrao/kafka-0.8.2.0-candidate2/ > >> > >> * Maven artifacts to be voted upon prior to release: > >> https://repository.apache.org/content/groups/staging/ > >> > >> * scala-doc > >> https://people.apache.org/~junrao/kafka-0.8.2.0-candidate2/scaladoc/ > >> > >> * java-doc > >> https://people.apache.org/~junrao/kafka-0.8.2.0-candidate2/javadoc/ > >> > >> * The tag to be voted upon (off the 0.8.2 branch) is the 0.8.2.0 tag > >> > >> > https://git-wip-us.apache.org/repos/asf?p=kafka.git;a=tag;h=058d58adef2ab2787e49d8efeefd61bb3d32f99c > >> (commit 0b312a6b9f0833d38eec434bfff4c647c1814564) > >> > >> /******************************************* > >> > >> Thanks, > >> > >> Jun > >> > >> > > -- > > You received this message because you are subscribed to the Google Groups > > "kafka-clients" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to kafka-clients+unsubscr...@googlegroups.com. > > To post to this group, send email to kafka-clie...@googlegroups.com. > > Visit this group at http://groups.google.com/group/kafka-clients. > > To view this discussion on the web visit > > > https://groups.google.com/d/msgid/kafka-clients/CAFc58G83a%3DsvoKkkB3476kpbcQ8p0Fob6vtJYj9CgxMACvvEEQ%40mail.gmail.com > > < > https://groups.google.com/d/msgid/kafka-clients/CAFc58G83a%3DsvoKkkB3476kpbcQ8p0Fob6vtJYj9CgxMACvvEEQ%40mail.gmail.com?utm_medium=email&utm_source=footer > > > > . > > > > For more options, visit https://groups.google.com/d/optout. > > >
