Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/377#discussion_r11500417
--- Diff: docs/configuration.md ---
@@ -103,23 +103,30 @@ Apart from these, the following properties are also
available, and may be useful
</td>
</tr>
<tr>
+ <td>spark.system.reservedMemorySize</td>
+ <td>300m</td>
--- End diff --
This seems a bit high - I spoke with @aarondav and we were thinking 200m
might be a better default for this. He said after GC the actual space used ends
up being ~100m. The issue with setting it too high is that it might falsely
reserve un-used space.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
