guozhangwang commented on a change in pull request #11149:
URL: https://github.com/apache/kafka/pull/11149#discussion_r688268274
##########
File path:
streams/src/main/java/org/apache/kafka/streams/processor/internals/metrics/StreamsMetricsImpl.java
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@@ -200,6 +201,30 @@ public RocksDBMetricsRecordingTrigger
rocksDBMetricsRecordingTrigger() {
}
}
+ public <T> void addThreadLevelImmutableMetric(final String name,
+ final String description,
+ final String threadId,
+ final T value) {
+ final MetricName metricName = metrics.metricName(
+ name, THREAD_LEVEL_GROUP, description,
threadLevelTagMap(threadId));
+ synchronized (threadLevelMetrics) {
Review comment:
Oh it's totally fine to use the thread id, it's just that for other
thread-level metrics we would prefix the thread id with either `internal` or
`external`, i.e. the "key" would not just be the thread id itself.
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