Yea that sounds familiar. At my previous company we were trying to load
JDBC drivers with a JDBC Storage Handler in Hive. We wanted it to be
dynamic. To be completely honest, I don't know what the final solution we
ended up with was though.
We looked at aux jars instead of ADD JAR. It think it als
Ok maybe this scenario will sound familiar. I’ve written a quick and dirty
groovy udf that prints out the current class path by iterating over
this.class.classLoader and here is what I’m seeing.
1. !connect – Class Path Printer shows no instances of the jar in the class
path
2. Execute s
I suspect it’s related to that. HIVE-11878 was for several of those issues but
it’s included in my build. The function has worked fine for months in some
environments and if we restart Hiveserver2 it will go back to working. I
suspect it has to do with how jar shading works but I didn’t want to
Different classloader potentially inside HS2? I know there used to be some
interesting cases of classloading when trying to add custom UDFs. Not sure
what the current state is.
Kevin Risden
On Tue, Mar 5, 2019 at 4:46 PM Shawn Weeks
wrote:
> Didn't here anything on the dev mailing list, has an
Didn't here anything on the dev mailing list, has anyone here seen this
scenario. Custom Hive Function starts throwing class not found errors but only
after a while, the function runs fine most of the time and only has a single
dependency.
Thanks
Shawn
-Original Message-
From: Shawn We
