Yep, historical reasons. And Netty 4 is under another namespace, so we can use Netty 3 and Netty 4 in the same JVM.
On Tue, Sep 3, 2019 at 6:15 AM Sean Owen <sro...@gmail.com> wrote: > It was for historical reasons; some other transitive dependencies needed > it. > I actually was just able to exclude Netty 3 last week from master. > Spark uses Netty 4. > > On Tue, Sep 3, 2019 at 6:59 AM Jacek Laskowski <ja...@japila.pl> wrote: > > > > Hi, > > > > Just noticed that Spark 2.4.x uses two netty deps of different versions. > Why? > > > > jars/netty-all-4.1.17.Final.jar > > jars/netty-3.9.9.Final.jar > > > > Shouldn't one be excluded or perhaps shaded? > > > > Pozdrawiam, > > Jacek Laskowski > > ---- > > https://about.me/JacekLaskowski > > The Internals of Spark SQL https://bit.ly/spark-sql-internals > > The Internals of Spark Structured Streaming > https://bit.ly/spark-structured-streaming > > The Internals of Apache Kafka https://bit.ly/apache-kafka-internals > > Follow me at https://twitter.com/jaceklaskowski > > > > --------------------------------------------------------------------- > To unsubscribe e-mail: dev-unsubscr...@spark.apache.org > > -- Best Regards, Ryan
