Github user tgravescs commented on a diff in the pull request: https://github.com/apache/spark/pull/900#discussion_r14823260 --- Diff: docs/configuration.md --- @@ -699,6 +699,22 @@ Apart from these, the following properties are also available, and may be useful (in milliseconds) </td> </tr> +</tr> + <td><code>spark.scheduler.minRegisteredExecutorsRatio</code></td> + <td>0</td> + <td> + Submit tasks only after (registered executors / total expected executors) + is equal to at least this value, which is double between 0 and 1. + </td> +</tr> +<tr> + <td><code>spark.scheduler.maxRegisteredExecutorsWaitingTime</code></td> + <td>30000</td> + <td> + Whatever (registered executors / total expected executors) is reached --- End diff -- I think we should clarify both of these a bit because its really you start when either one is hit so I think adding reference to maxRegisteredExecutorsWaitingTime from the description of minRegisteredExecutorsRatio would be good. How about something like below? Note I'm not a doc writer so I'm fine with changing. for spark.scheduler.minRegisteredExecutorsRatio: The minimum ratio of registered executors (registered executors / total expected executors) to wait for before scheduling begins. Specified as a double between 0 and 1. Regardless of whether the minimum ratio of executors has been reached, the maximum amount of time it will wait before scheduling begins is controlled by config <code>spark.scheduler.maxRegisteredExecutorsWaitingTime</code> . Then for spark.scheduler.maxRegisteredExecutorsWaitingTime: Maximum amount of time to wait for executors to register before scheduling begins (in milliseconds).
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