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| author | zsxwing <zsxwing@gmail.com> | 2015-06-17 13:59:39 -0700 |
|---|---|---|
| committer | Andrew Or <andrew@databricks.com> | 2015-06-17 13:59:39 -0700 |
| commit | 0fc4b96f3e3bf81724ac133a6acc97c1b77271b4 (patch) | |
| tree | 7d5e783967ac602ce979fe0f15a3d3613f44a4f8 /python/pyspark/context.py | |
| parent | 2837e067099921dd4ab6639ac5f6e89f789d4ff4 (diff) | |
| download | spark-0fc4b96f3e3bf81724ac133a6acc97c1b77271b4.tar.gz spark-0fc4b96f3e3bf81724ac133a6acc97c1b77271b4.tar.bz2 spark-0fc4b96f3e3bf81724ac133a6acc97c1b77271b4.zip | |
[SPARK-8373] [PYSPARK] Add emptyRDD to pyspark and fix the issue when calling sum on an empty RDD
This PR fixes the sum issue and also adds `emptyRDD` so that it's easy to create a test case.
Author: zsxwing <zsxwing@gmail.com>
Closes #6826 from zsxwing/python-emptyRDD and squashes the following commits:
b36993f [zsxwing] Update the return type to JavaRDD[T]
71df047 [zsxwing] Add emptyRDD to pyspark and fix the issue when calling sum on an empty RDD
Diffstat (limited to 'python/pyspark/context.py')
| -rw-r--r-- | python/pyspark/context.py | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/python/pyspark/context.py b/python/pyspark/context.py index 44d90f1437..90b2fffbb9 100644 --- a/python/pyspark/context.py +++ b/python/pyspark/context.py @@ -324,6 +324,12 @@ class SparkContext(object): with SparkContext._lock: SparkContext._active_spark_context = None + def emptyRDD(self): + """ + Create an RDD that has no partitions or elements. + """ + return RDD(self._jsc.emptyRDD(), self, NoOpSerializer()) + def range(self, start, end=None, step=1, numSlices=None): """ Create a new RDD of int containing elements from `start` to `end` |