showuon commented on code in PR #13279:
URL: https://github.com/apache/kafka/pull/13279#discussion_r1115304004
##########
core/src/test/scala/unit/kafka/server/FetchRequestDownConversionConfigTest.scala:
##########
@@ -221,6 +222,8 @@ class FetchRequestDownConversionConfigTest extends
BaseRequestTest {
} else {
assertEquals(Errors.UNSUPPORTED_VERSION,
error(partitionWithDownConversionDisabled))
}
+ TestUtils.waitUntilTrue(() =>
TestUtils.metersCount(BrokerTopicStats.FetchMessageConversionsPerSec) >
initialFetchMessageConversionsPerSec,
+ s"init: $initialFetchMessageConversionsPerSec final:
${TestUtils.metersCount(BrokerTopicStats.FetchMessageConversionsPerSec)}", 3000)
Review Comment:
nit: The error message could be more clear, ex:
```
The `FetchMessageConversionsPerSec` metric count is not incremented after 3
seconds. init: $initialFetchMessageConversionsPerSec final:
${TestUtils.metersCount(BrokerTopicStats.FetchMessageConversionsPerSec)}
```
Also, the 3 seconds might be able to increase to 5 sec to avoid flaky
failure.
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