HyukjinKwon commented on a change in pull request #27575: [SPARK-30827][DOCS]
Document direct relationship among configurations in "spark.history.*" namespace
URL: https://github.com/apache/spark/pull/27575#discussion_r379338701
##########
File path: docs/monitoring.md
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@@ -159,22 +159,22 @@ Security options for the Spark History Server are
covered more detail in the
<td>false</td>
<td>
Indicates whether the history server should use kerberos to login. This
is required
- if the history server is accessing HDFS files on a secure Hadoop
cluster. If this is
- true, it uses the configs <code>spark.history.kerberos.principal</code>
and
- <code>spark.history.kerberos.keytab</code>.
+ if the history server is accessing HDFS files on a secure Hadoop cluster.
</td>
</tr>
<tr>
<td>spark.history.kerberos.principal</td>
<td>(none)</td>
<td>
+ Precondition: <code>spark.history.kerberos.enabled=true</code><br/><br/>
Review comment:
@HeartSaVioR, seems `Precondition: ` is new style. Can we follow one
prevailing style we use in the current code base? Or I actually think it's just
better to say "it's effective when spark.xx.xx is enabled." at the end of each
description. Current one seems catching too much attention.
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