Ravi Kalasapur created KAFKA-19117:
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Summary: Client Throttling Log messages should be of log level -
WARN
Key: KAFKA-19117
URL: https://issues.apache.org/jira/browse/KAFKA-19117
Project: Kafka
Issue Type: Improvement
Components: clients
Affects Versions: 3.6.2
Reporter: Ravi Kalasapur
We experienced an outage in our application due to a built up Kafka lag, which
we eventually discovered to be the problem with Kafka Clients being throttled.
Even when using the confluent cluster, the dashboard does point to exceeding
the quota of the principal.
It will be nice, if the log message on the client side is a WARNING. This helps
those who don't have visibility to cluster, and just look at the problem from
the client side, setup alerts etc. (instead of enabling TRACE to figure out
where the problem is)
NetworkClient#maybeThrottle
{code:java}
log.trace("Connection to node {} is throttled for {} ms until timestamp {}",
nodeId, throttleTimeMs, now + throttleTimeMs); {code}
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