Skip to content

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

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
ontarionick wants to merge 2 commits into from
Closed

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

Changes from 1 commit
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
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
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
Next Next commit
update kafka direct python docs on how to get the offset ranges for a… 
… KafkaRDD
  • Loading branch information
@ontarionick
ontarionick committed Oct 27, 2015
commit acb202a1a2e28b28df16c6e5269c65c2da9dddc3
15 changes: 14 additions & 1 deletion docs/streaming-kafka-integration.md
View file
Open in desktop
Original file line number Diff line number Diff line change
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):
del offsetRanges[:]
offsetRanges.extend(rdd.offsetRanges())
Copy link
Contributor

@tdas tdas Oct 27, 2015

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

cant we simply use offsetRanges = rdd.offsetRanges()?

Copy link
Contributor Author

@ontarionick ontarionick Oct 27, 2015

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

I tried that and couldn't get it working - seems to be related to a new object being created instead of updating the old one.

However, if I add global offsetRanges before, that seems to work fine. I'll push that change out.

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>

Expand Down