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Diffstat (limited to 'python/pyspark/rdd.py')
| -rw-r--r-- | python/pyspark/rdd.py | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/python/pyspark/rdd.py b/python/pyspark/rdd.py index 39916d21c7..0f28dbd6fc 100644 --- a/python/pyspark/rdd.py +++ b/python/pyspark/rdd.py @@ -36,6 +36,7 @@ from pyspark.join import python_join, python_left_outer_join, \ python_right_outer_join, python_cogroup from pyspark.statcounter import StatCounter from pyspark.rddsampler import RDDSampler +from pyspark.storagelevel import StorageLevel from py4j.java_collections import ListConverter, MapConverter @@ -1119,6 +1120,47 @@ class RDD(object): other._jrdd_deserializer) return RDD(pairRDD, self.ctx, deserializer) + def name(self): + """ + Return the name of this RDD. + """ + name_ = self._jrdd.name() + if not name_: + return None + return name_.encode('utf-8') + + def setName(self, name): + """ + Assign a name to this RDD. + >>> rdd1 = sc.parallelize([1,2]) + >>> rdd1.setName('RDD1') + >>> rdd1.name() + 'RDD1' + """ + self._jrdd.setName(name) + + def toDebugString(self): + """ + A description of this RDD and its recursive dependencies for debugging. + """ + debug_string = self._jrdd.toDebugString() + if not debug_string: + return None + return debug_string.encode('utf-8') + + def getStorageLevel(self): + """ + Get the RDD's current storage level. + >>> rdd1 = sc.parallelize([1,2]) + >>> rdd1.getStorageLevel() + StorageLevel(False, False, False, 1) + """ + java_storage_level = self._jrdd.getStorageLevel() + storage_level = StorageLevel(java_storage_level.useDisk(), + java_storage_level.useMemory(), + java_storage_level.deserialized(), + java_storage_level.replication()) + return storage_level # TODO: `lookup` is disabled because we can't make direct comparisons based # on the key; we need to compare the hash of the key to the hash of the |