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MINOR: add the removed topic metrics to zk2kraft #18658

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MINOR: add the removed topic metrics to zk2kraft #18658

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m1a2st Jan 21, 2025
e13bf4f
Merge branch 'trunk' into MINOR-METRICS
m1a2st Jan 21, 2025
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11 changes: 11 additions & 0 deletions docs/zk2kraft.html
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Expand Up @@ -176,5 +176,16 @@ <h5 class="anchor-heading">Removal metrics</h5>
Kafka remove all zookeeper dependencies, so the metrics is removed.
</p>
</li>
<li>
<p>
Remove the metrics which is monitoring requests waiting in the topic purgatory
</p>
<ul>
<li><code>kafka.server:type=DelayedOperationPurgatory,name=PurgatorySize,delayedOperation=topic</code></li>
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I had a look at the DelayedOperationPurgatory class and I believe you are actually removing 2 metrics instead of one

metricsGroup.newGauge("PurgatorySize", this::watched, metricsTags);
metricsGroup.newGauge("NumDelayedOperations", this::numDelayed, metricsTags);

Could you add this to the description as well?

</ul>
<p>
In Kraft mode, Zookeeper is not used, so the metrics is removed.
</p>
</li>
</ul>
</div>
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