MINOR: Enhanced exception handling for metadata acquisition #20517
+39
−34
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Hi community, currently, the client sets
org.apache.kafka.clients.NetworkClient.DefaultMetadataUpdater#inProgress
when retrieving metadata. In the event of a successful or failed
response, inProgress is set to null.
The problem we encountered was: An exception was thrown while
processing the MetadataResponse, causing inProgress to not be updated.
Metadata requests could not be initiated again, and metadata remained
unupdated.
Why did the update fail? maybeUpdate(long now) always returns a
default timeout, meaning no new MetadataRequest would be sent until the
previous one was complete.