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My source connector throws Caused by: io.confluent.kafka.schemaregistry.client.rest.exceptions.RestClientException: Error while forwarding register schema request to the master; error code: 50003

or Caused by: io.confluent.kafka.schemaregistry.client.rest.exceptions.RestClientException: Master not known

I found this happened when schema registry's master changes and I have two replicas of schema-registry, under the same service on k8s.

The top exception is org.apache.kafka.connect.errors.ConnectException: Tolerance exceeded in error handler

How to increase the tolerance so the connector can retry more times until the new master is elected?

OneCricketeer
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Holm
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1 Answers1

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Just because you have two replicas doesn't mean they know about each other.

See how to fix this - https://github.com/confluentinc/cp-helm-charts/issues/375

Regarding the error handler, you give timeouts. Example from the docs.

# retry for at most 10 minutes times waiting up to 30 seconds between consecutive failures
errors.retry.timeout=600000
errors.retry.delay.max.ms=30000
OneCricketeer
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