"requirement failed: Cannot find Livy REPL jars."
I didn't look where that error comes from, but my guess is that it looks like you don't have Livy pointing to the right location anymore where it can find Spark. Hopefully not sending you on a wild goose chase, but would check there first. Also you need to make sure you are Livy 0.6.0+ since Spark 2.4 support was only added to 0.6.0 and above. Kevin Risden On Mon, Jun 3, 2019 at 4:04 PM Pat Ferrel <p...@occamsmachete.com> wrote: > Spark 2.4.x does not require scala 2.12, in fact is is marked as > “experimental” here: > https://spark.apache.org/releases/spark-release-2-4-0.html > > <https://spark.apache.org/releases/spark-release-2-4-0.html> > Moving to a new scala version is often a pain, because the libs you use > may not be upgraded and version matter *unlike typical Java updates). Scala > creates JVM objects and names them as it pleases. Sometimes naming changes > from version to version of Scala and this causes big problem in using mixed > libs from different versions of Scala. > > I’m no expert in Livy, but imagine you may need to build against a newer > Spark. But avoid Scala 2.12 for now. > > From: santosh.dan...@ubs.com <santosh.dan...@ubs.com> > <santosh.dan...@ubs.com> > Reply: user@livy.incubator.apache.org <user@livy.incubator.apache.org> > <user@livy.incubator.apache.org> > Date: June 3, 2019 at 12:51:20 PM > To: user@livy.incubator.apache.org <user@livy.incubator.apache.org> > <user@livy.incubator.apache.org> > Subject: Support for Livy with Scala 2.12 > > Hi, > > > > We have just upgraded our spark cluster version 2.3 to 2.4.2 and it broke > Livy. It's throwing exception "Cannot Find Livy REPL Jars". Looks like I > have to build Livy using Scala 2.12 version. > > > > Can anyone advise how to build Livy with Scala 2.12 with Maven? Will > changing the scala version from 2.11 to 2.12 would build livy? Please > advise. > > > > > > > > The code failed because of a fatal error: > > Invalid status code '400' from http://localhost:8998/sessions with > error payload: {"msg":"requirement failed: Cannot find Livy REPL jars."}. > > > > Thanks > Santosh > > Please visit our website at > http://financialservicesinc.ubs.com/wealth/E-maildisclaimer.html > for important disclosures and information about our e-mail > policies. For your protection, please do not transmit orders > or instructions by e-mail or include account numbers, Social > Security numbers, credit card numbers, passwords, or other > personal information. > >