Documenting the newly added spark properties.
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@ -275,11 +275,32 @@ Apart from these, the following properties are also available, and may be useful
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</tr>
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<tr>
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<td>spark.akka.timeout</td>
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<td>20</td>
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<td>60</td>
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<td>
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Communication timeout between Spark nodes, in seconds.
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</td>
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<tr>
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<td>spark.akka.pauses</td>
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<td>60</td>
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<td>
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Acceptable heart beat pause in seconds for akka, tune this if you expect GC pauses or network delays (reconnections) etc.
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</td>
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<td>spark.akka.failure-detector.threshold</td>
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<td>12.0</td>
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<td>
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Tuning this is not recommended unless you are sure what you are doing. This maps to akka's `akka.remote.transport-failure-detector.threshold`. Usually having a larger value of `spark.akka.pauses` should suffice.
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<td>spark.akka.heartbeat.interval</td>
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<td>5</td>
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<td>
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A larger interval value in seconds reduces network overhead and a smaller value might be more informative for akka's failure detector. Tune this in combination of `spark.akka.pauses` and `spark.akka.failure-detector.threshold` if you need to.
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</td>
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<tr>
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<td>spark.driver.host</td>
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<td>(local hostname)</td>
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