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[SPARK-11335][STREAMING] update kafka direct python docs on how to get the offset ranges for a KafkaRDD #9289

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[SPARK-11335][STREAMING] update kafka direct python docs on how to get the offset ranges for a KafkaRDD #9289

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acb202a
update kafka direct python docs on how to get the offset ranges for a…
ontarionick Oct 27, 2015
85e4b25
use global variable instead of emptying then extending list
ontarionick Oct 27, 2015
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15 changes: 14 additions & 1 deletion docs/streaming-kafka-integration.md
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Expand Up @@ -181,7 +181,20 @@ Next, we discuss how to use this approach in your streaming application.
);
</div>
<div data-lang="python" markdown="1">
Not supported yet
offsetRanges = []

def storeOffsetRanges(rdd):
global offsetRanges
offsetRanges = rdd.offsetRanges()
return rdd

def printOffsetRanges(rdd):
for o in offsetRanges:
print "%s %s %s %s" % (o.topic, o.partition, o.fromOffset, o.untilOffset)

directKafkaStream\
.transform(storeOffsetRanges)\
.foreachRDD(printOffsetRanges)
</div>
</div>

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