dongjoon-hyun commented on a change in pull request #31936:
URL: https://github.com/apache/spark/pull/31936#discussion_r599273586
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File path: docs/running-on-yarn.md
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@@ -761,8 +761,27 @@ The following extra configuration options are available
when the shuffle service
NodeManagers where the Spark Shuffle Service is not running.
</td>
</tr>
+<tr>
+ <td><code>spark.yarn.shuffle.service.metrics.namespace</code></td>
+ <td><code>sparkShuffleService</code></td>
+ <td>
+ The namespace to use when emitting shuffle service metrics into Hadoop
metrics2 system of the
+ NodeManager.
Review comment:
Could you add some description about the limitation with old Hadoop
versions (like 2.7.x)? Here or at Section `Running multiple versions of the
Spark Shuffle Service`?
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