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@@ -260,6 +260,10 @@ have Mesos download Spark via the usual methods.
Requires Mesos version 0.20.1 or later.
+Note that by default Mesos agents will not pull the image if it already exists on the agent. If you use mutable image
+tags you can set `spark.mesos.executor.docker.forcePullImage` to `true` in order to force the agent to always pull the
+image before running the executor. Force pulling images is only available in Mesos version 0.22 and above.
+
# Running Alongside Hadoop
You can run Spark and Mesos alongside your existing Hadoop cluster by just launching them as a
@@ -335,6 +339,14 @@ See the [configuration page](configuration.html) for information on Spark config
</td>
</tr>
<tr>
+ <td><code>spark.mesos.executor.docker.forcePullImage</code></td>
+ <td>false</td>
+ <td>
+ Force Mesos agents to pull the image specified in <code>spark.mesos.executor.docker.image</code>.
+ By default Mesos agents will not pull images they already have cached.
+ </td>
+</tr>
+<tr>
<td><code>spark.mesos.executor.docker.volumes</code></td>
<td>(none)</td>
<td>