Github user tgravescs commented on a diff in the pull request:
https://github.com/apache/spark/pull/894#discussion_r13810314
--- Diff: docs/running-on-yarn.md ---
@@ -67,6 +67,20 @@ Most of the configs are the same for Spark on YARN as
for other deployment modes
The address of the Spark history server (i.e. host.com:18080). The
address should not contain a scheme (http://). Defaults to not being set since
the history server is an optional service. This address is given to the YARN
ResourceManager when the Spark application finishes to link the application
from the ResourceManager UI to the Spark history server UI.
</td>
</tr>
+<tr>
+ <td><code>spark.yarn.executor.memoryOverhead</code></td>
+ <td>384</code></td>
+ <td>
+ Additional memory overhead in mb for executor.
--- End diff --
can you make this text say:
The amount of off heap memory (in megabytes) to be allocated per executor.
This is memory that accounts for things like VM overheads, interned strings,
other native overheads, etc.
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