Yikun commented on a change in pull request #35640:
URL: https://github.com/apache/spark/pull/35640#discussion_r814613104
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File path: docs/running-on-kubernetes.md
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@@ -1356,6 +1356,26 @@ See the [configuration page](configuration.html) for
information on Spark config
</td>
<td>3.3.0</td>
</tr>
+<tr>
+ <td><code>spark.kubernetes.job.minCPU</code></td>
Review comment:
Yep, this's a good question, there were some related use case of Spark
with volcano in production can be shared in here:
- Case1 (this PR): `minCPU` = specified `minCPU`: for users who know their
own cluster resources well, this is the basic user case. **Especially, when
users don't want to set `minRes` strictly to which the spark job real needed
resource mount**.
- Case2: `minCPU` = driver.request + `executor.number` * `executor.request`:
for users who don't care much about job resource usage.
- Case3: `minCPU` = (driver.request + `executor.number` *
`executor.request`) * `factor`, for users want to guarantee the resources of
the job in some level, but also want to improve the utilization of the cluster.
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