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https://issues.apache.org/jira/browse/KAFKA-13160?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ryan Dielhenn updated KAFKA-13160:
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Description: In a ZK cluster, dynamic default broker configs are stored in
the zNode /brokers/<default>. When these configs are sent to the brokers in a
fetch response, the BrokerConfigHandler checks if the resource name is
"<default>" to do a default update and converts the resource name to an integer
otherwise to do a per-broker config update. In KRaft dynamic default broker
configs are serialized in the quorum with empty string instead of "<default>".
This was causing the BrokerConfigHandler to throw a NumberFormatException for
dynamic default broker configs since the resource name for them is not
"<default>" or a singular integer. This handler should be fixed to expect empty
string as the resource name for the dynamic default broker configs if using
KRaft. (was: In a ZK cluster, dynamic default broker configs are stored in the
zNode /brokers/<default>. When these configs are sent to the brokers in a fetch
response, the BrokerConfigHandler checks if the resource name is "<default>" to
do a default update and converts the resource name to an integer otherwise to
do a per-broker config update. In KRaft dynamic default broker configs are
serialized in the quorum with empty string instead of "<default>". This was
causing the BrokerConfigHandler to throw a NumberFormatException for dynamic
default broker configs since the resource name for them is not "<default>" or a
singular integer. This handler should be fixed to expect empty string for the
dynamic default broker configs if using KRaft.)
> Fix BrokerConfigHandler to expect empty string as the resource name for
> dynamic default broker configs in KRaft
> ---------------------------------------------------------------------------------------------------------------
>
> Key: KAFKA-13160
> URL: https://issues.apache.org/jira/browse/KAFKA-13160
> Project: Kafka
> Issue Type: Bug
> Affects Versions: 3.0.0
> Reporter: Ryan Dielhenn
> Assignee: Ryan Dielhenn
> Priority: Blocker
> Fix For: 3.0.0
>
>
> In a ZK cluster, dynamic default broker configs are stored in the zNode
> /brokers/<default>. When these configs are sent to the brokers in a fetch
> response, the BrokerConfigHandler checks if the resource name is "<default>"
> to do a default update and converts the resource name to an integer otherwise
> to do a per-broker config update. In KRaft dynamic default broker configs are
> serialized in the quorum with empty string instead of "<default>". This was
> causing the BrokerConfigHandler to throw a NumberFormatException for dynamic
> default broker configs since the resource name for them is not "<default>" or
> a singular integer. This handler should be fixed to expect empty string as
> the resource name for the dynamic default broker configs if using KRaft.
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