Github user okram commented on a diff in the pull request:
https://github.com/apache/tinkerpop/pull/721#discussion_r142426106
--- Diff: hadoop-gremlin/conf/hadoop-gryo.properties ---
@@ -29,8 +29,8 @@ gremlin.hadoop.outputLocation=output
spark.master=local[4]
spark.executor.memory=1g
spark.serializer=org.apache.tinkerpop.gremlin.spark.structure.io.gryo.GryoSerializer
+gremlin.spark.persistContext=true
--- End diff --
Yes, we know what it does, but by default we have it set to `false` and we
don't want to create a backwards breaking usage.
---
