gaurav-narula commented on code in PR #13949:
URL: https://github.com/apache/kafka/pull/13949#discussion_r1252045094
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core/src/main/scala/kafka/server/DelayedProduce.scala:
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@@ -58,6 +62,8 @@ class DelayedProduce(delayMs: Long,
lockOpt: Option[Lock] = None)
extends DelayedOperation(delayMs, lockOpt) {
+ override lazy val logger = DelayedProduce.logger
Review Comment:
Thanks for reviewing this!
If I understand this correctly, I believe you're suggesting to replace the
declaration in the [Logging
trait](https://github.com/apache/kafka/blob/5c2492bca71200806ccf776ea31639a90290d43e/core/src/main/scala/kafka/utils/Logging.scala#L43)
to be a `protected def logger = Logger(LoggerFactory.getLogger(loggerName))`
instead of `protected lazy val logger =
Logger(LoggerFactory.getLogger(loggerName))`
I think that will result in a logger being instantiated for each usage of
`logger` which are *not* overridden by a `lazy val`. This is something I reckon
we should avoid as it exacerbates the problem. [This
example](https://scastie.scala-lang.org/X2OWyu5BRJKXRA81zxsgJw) in the
playground demonstrates the behaviour.
Please let me know your thoughts and if there's something I overlooked or
misunderstood :)
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