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From onpoq l <>
Subject shuffling using netty in spark streaming
Date Thu, 12 Jun 2014 06:35:10 GMT

1. Does netty perform better than the basic method for shuffling? I found
the latency caused by shuffling in a streaming job is not stable with the
basic method.

2. However, after I turn on netty for shuffling, I can only see the results
for the first two batches, and then no output at all. I'm not sure whether
the way I turn on netty is correct:

val conf = new SparkConf().set("spark.shuffle.use.netty", "true")


Boduo Li

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