Github user pwendell commented on a diff in the pull request:
https://github.com/apache/spark/pull/288#discussion_r11222791
--- Diff: docs/configuration.md ---
@@ -586,6 +586,23 @@ Apart from these, the following properties are also
available, and may be useful
Number of cores to allocate for each task.
</td>
</tr>
+<tr>
+ <td>spark.worker.cleanup_interval</td>
--- End diff --
It would be good to have an enable/disable option for this. Maybe it could
be something like:
```
spark.worker.cleanup.enabled
spark.worker.cleanup.interval
spark.worker.cleanup.appDataTtl
```
I guess having it enabled by default is okay as long as the default TTL is
pretty long (which it is).
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