diff --git a/core/src/main/scala/spark/KryoSerializer.scala b/core/src/main/scala/spark/KryoSerializer.scala index d723ab7b1e..c7dbcc6fbc 100644 --- a/core/src/main/scala/spark/KryoSerializer.scala +++ b/core/src/main/scala/spark/KryoSerializer.scala @@ -210,6 +210,10 @@ class KryoSerializer extends spark.serializer.Serializer with Logging { val reg = Class.forName(regCls, true, classLoader).newInstance().asInstanceOf[KryoRegistrator] reg.registerClasses(kryo) } + + // Allow disabling Kryo reference tracking if user knows their object graphs don't have loops + kryo.setReferences(System.getProperty("spark.kryo.referenceTracking", "true").toBoolean) + kryo } diff --git a/docs/configuration.md b/docs/configuration.md index 5a80510959..5c06897cae 100644 --- a/docs/configuration.md +++ b/docs/configuration.md @@ -197,9 +197,19 @@ Apart from these, the following properties are also available, and may be useful (e.g. map functions) reference large objects in the driver program. +