I am seeing this on every consumer start: 2020-11-25 13:54:34.858 INFO 42250 --- [ntainer#0-0-C-1] o.a.k.c.c.internals.AbstractCoordinator : [Consumer clientId=consumer-ktest26int-1, groupId=ktest26int] Rebalance failed.
org.apache.kafka.common.errors.MemberIdRequiredException: The group member needs to have a valid member id before actually entering a consumer group. Due to this change [1]. I understand what a MemberIdRequiredException is, but the previous (2.6.0) log (with exception.getMessage()) didn't stand out like the new one does because it was all on one line. Probably not a blocker, but I suspect it will cause some angst when users start seeing it since it stands out so much. It will be worse if/when the lack of stack trace for ApiExceptions is ever fixed. I am not sure I understand why it's logged at INFO at all, since it's a normal state during initial handshaking. [1]: https://github.com/apache/kafka/commit/16ec1793d53700623c9cb43e711f585aafd44dd4#diff-15efe9b844f78b686393b6c2e2ad61306c3473225742caed05c7edab9a138832R468 ________________________________ From: Mickael Maison <mimai...@apache.org> Sent: Wednesday, November 25, 2020 1:41 PM To: dev <dev@kafka.apache.org>; Users <us...@kafka.apache.org>; kafka-clients <kafka-clie...@googlegroups.com> Subject: [VOTE] 2.6.1 RC2 Hello Kafka users, developers and client-developers, This is the third candidate for release of Apache Kafka 2.6.1. Since RC1, the following JIRAs have been fixed: KAFKA-10758 Release notes for the 2.6.1 release: https://nam04.safelinks.protection.outlook.com/?url=https:%2F%2Fhome.apache.org%2F~mimaison%2Fkafka-2.6.1-rc2%2FRELEASE_NOTES.html&data=04%7C01%7Cgrussell%40vmware.com%7Cf7ebf202bedd4de818d108d89171b832%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C637419264901725624%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=mpMKjztN2CqqGQDrf5wfJ1JTMTep9oA2tf2n2tH8OEI%3D&reserved=0 *** Please download, test and vote by Wednesday, December 2, 5PM PT Kafka's KEYS file containing PGP keys we use to sign the release: https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fkafka.apache.org%2FKEYS&data=04%7C01%7Cgrussell%40vmware.com%7Cf7ebf202bedd4de818d108d89171b832%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C637419264901725624%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=WZTUB%2B7qCILAKvU%2B07JURXDQzTlgjth87eI6IWL120M%3D&reserved=0 * Release artifacts to be voted upon (source and binary): https://nam04.safelinks.protection.outlook.com/?url=https:%2F%2Fhome.apache.org%2F~mimaison%2Fkafka-2.6.1-rc2%2F&data=04%7C01%7Cgrussell%40vmware.com%7Cf7ebf202bedd4de818d108d89171b832%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C637419264901725624%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=o0VgYxAqwmj%2BnKA%2FRe0Idwe0IDozqt%2BqFkewexGg6H8%3D&reserved=0 * Maven artifacts to be voted upon: https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Frepository.apache.org%2Fcontent%2Fgroups%2Fstaging%2Forg%2Fapache%2Fkafka%2F&data=04%7C01%7Cgrussell%40vmware.com%7Cf7ebf202bedd4de818d108d89171b832%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C637419264901725624%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=p6Tt30M5cfuXRHr1oR8usuPYBXUlsV4frtPaVmY91b4%3D&reserved=0 * Javadoc: https://nam04.safelinks.protection.outlook.com/?url=https:%2F%2Fhome.apache.org%2F~mimaison%2Fkafka-2.6.1-rc2%2Fjavadoc%2F&data=04%7C01%7Cgrussell%40vmware.com%7Cf7ebf202bedd4de818d108d89171b832%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C637419264901725624%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=Yw3faj2YYCV0gjkrKwM%2BWb%2B5nu7NYhK5HqLjcSCF7%2Fc%3D&reserved=0 * Tag to be voted upon (off 2.6 branch) is the 2.6.1 tag: https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgithub.com%2Fapache%2Fkafka%2Freleases%2Ftag%2F2.6.1-rc2&data=04%7C01%7Cgrussell%40vmware.com%7Cf7ebf202bedd4de818d108d89171b832%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C637419264901725624%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=fLiGhYV9B8vnpbWAGIHAsQcFKkXACVAi%2BYamXyMTey8%3D&reserved=0 * Documentation: https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fkafka.apache.org%2F26%2Fdocumentation.html&data=04%7C01%7Cgrussell%40vmware.com%7Cf7ebf202bedd4de818d108d89171b832%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C637419264901725624%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=dGZO3GyGG63e%2BsiTTHnlIkVGouoan5j2loGQfWvdXY0%3D&reserved=0 * Protocol: https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fkafka.apache.org%2F26%2Fprotocol.html&data=04%7C01%7Cgrussell%40vmware.com%7Cf7ebf202bedd4de818d108d89171b832%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C637419264901725624%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=sALmxKv7VYJvsO2DK2H8c%2BiuU%2FKPa2Fpcl0Dre6XtpI%3D&reserved=0 * Successful Jenkins builds for the 2.6 branch: Unit/integration tests: https://nam04.safelinks.protection.outlook.com/?url=https%3A%2F%2Fbuilds.apache.org%2Fjob%2Fkafka-2.6-jdk8%2F55%2F&data=04%7C01%7Cgrussell%40vmware.com%7Cf7ebf202bedd4de818d108d89171b832%7Cb39138ca3cee4b4aa4d6cd83d9dd62f0%7C0%7C0%7C637419264901725624%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&sdata=ORreShA%2BuSeJ31Ib2rGzzTHN%2Bi8rIYsgx0%2BBdF6mtRc%3D&reserved=0 /************************************** Thanks, Mickael
