we have Kafka cluster with 11 brokers on Linux machines
brokers IDS are
1001
1002
.
.
.
1011
we have topics as - my_first_car , with 300 partitions , and this topic configured with replication factor = 3
we notice from server.log the following ERRORS ( from the first broker - 1001 )
[2022-03-02 07:15:52,450] ERROR [ReplicaFetcherThread-0-1005], Error for partition [my_first_car1,57] to broker 1005:org.apache.kafka.common.errors.UnknownServerException: The server experienced an unexpected error when processing the request (kafka.server.ReplicaFetcherThread)
[2022-03-02 07:15:52,450] ERROR [ReplicaFetcherThread-0-1005], Error for partition [my_first_car2,37] to broker 1005:org.apache.kafka.common.errors.UnknownServerException: The server experienced an unexpected error when processing the request (kafka.server.ReplicaFetcherThread)
what we can learn from ERRORS above?
server.log on all Kafka's is filled with that ERRORS
is that ERROR could be related to network problem or else?
need to mention that all kafka services are up ,
and we set the correct Kafka heap size memory
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Issue with Kafka Broker - UnknownServerException
Is it possible to add partitions to an existing topic in Kafka 0.8.2
Execute to alter kafka topic partition number, occurred UnknownServerException with other topics
Reproducing UnknownTopicOrPartitionException: This server does not host this topic-partition
https://russianblogs.com/article/76231330936/
as I know - UnknownTopicOrPartitionException
Literally: topic or partition does not exist. For example: topic has a total of 3 partitions, p0, p1, p2, and if you specify to write data to p3, this exception will be reported
but in my case the topics partitions are exists
