Hi all, <https://stackoverflow.com/posts/64080819/timeline>
I have a strange Kafka Server error when mirroring data with the MirrorMaker 1 in Apache Kafka 2.6. |org.apache.kafka.common.errors.NotEnoughReplicasException: The size of the current ISR Set(3) is insufficient to satisfy the min.isr requirement of 2 for partition FooBar-0 | The strange thing is, that the |min.isr| setting is 2 and the ISR Set has 3 nodes. Nevertheless I get the /NotEnoughReplicasException/ Exception. Also taking a deeper look to the topic does not show any curiosities |[root@LoremIpsum kafka]# /usr/lib/kafka/kafka/bin/kafka-topics.sh --bootstrap-server localhost:9092 --describe --topic FooBar Topic: FooBar PartitionCount: 1 ReplicationFactor: 3 Configs: min.insync.replicas=2,cleanup.policy=compact,segment.bytes=1073741824,max.message.bytes=5242880,min.compaction.lag.ms=604800000,message.timestamp.type=LogAppendTime,unclean.leader.election.enable=false Topic: FooBar Partition: 0 Leader: 3 Replicas: 2,3,1 Isr: 3 | The logs of the 3 nodes look normal (as far as I can judge). Is there any other reason that could produce this message. What else could be checked? Thank you very much for any advice! I also posted this question on SO here: https://stackoverflow.com/questions/64080819/kafka-size-of-isr-set3-insufficient-for-min-isr-2 Kind regards, Franz
