This looks similar to what we are seeing with Ozone running w/ Spark 3.3 HDDS-6926 <https://issues.apache.org/jira/browse/HDDS-6926>
My guess is Spark 3.3 switched to the shaded Hadoop client jar, where protobuf message classes are shaded, and somehow that breaks applications using old Hadoop classes. If you can share some stack traces that would be great. On Mon, Oct 24, 2022 at 11:26 AM Lars Francke <lars.fran...@gmail.com> wrote: > Hi Andrew, > > okay, we'll try that and will report back when/if we get it working. > > Cheers, > Lars > > On Thu, Oct 20, 2022 at 2:29 AM Andrew Purtell <apurt...@apache.org> > wrote: > > > No, that is insufficient. HBase must be recompiled against Hadoop 3 first > > > > cd /path/to/hbase > > mvn clean install assembly:single -DskipTests -Dhadoop.profile=3.0 > > -Dhadoop-three.version=XXX > > > > Then once the results are in your local maven cache or nexus instance, > you > > can compile Spark as indicated. > > > > > > On Tue, Oct 18, 2022 at 11:39 PM Lars Francke <lars.fran...@gmail.com> > > wrote: > > > > > Hi Andrew, > > > > > > thanks for the reply. > > > I should have been more specific: We only tried to compile the "client" > > > part that's used in Spark itself and we used the proper versions > > > > > > mvn -Dspark.version=XXX -Dscala.version=XXX -Dhadoop-three.version=XXX > > > -Dscala.binary.version=XXX -Dhbase.version=XXX clean package > > > > > > I assume that should pull in the correct dependencies but I have to > admit > > > that I didn't check, took it straight from the readme. > > > We wanted to try the server bit for the RegionServers afterwards but > > didn't > > > even get to it yet. > > > > > > We have this on our radar though and might try to work through those > > issues > > > at some point. > > > If we get started on that I'll ping the list. > > > > > > Cheers, > > > Lars > > > > > > On Wed, Oct 19, 2022 at 1:41 AM Andrew Purtell <apurt...@apache.org> > > > wrote: > > > > > > > Out of the box use is going to be problematic without recompiling > HBase > > > for > > > > Hadoop 3. Spark 3.3 ships with Hadoop 3.3.2. Apache HBase 2.4.x (and > > all > > > > 2.x) releases are compiled against Hadoop 2. Link errors > > (ClassNotFound, > > > > NoClassDef, etc) I think are to be expected because the class > > hierarchies > > > > of various Hadoop things have been incompatibly changed in 3.x > releases > > > > relative to 2.x. This is not unreasonable. Semantic versioning > suggests > > > > breaking changes can be expected in a major version increment. > > > > > > > > Users probably need to do a holistic (or hermetic, if you prefer) > build > > > of > > > > their bill of materials before testing it or certainly before > shipping > > > it. > > > > Build your HBase for the version of Hadoop you are actually shipping > it > > > > with, as opposed to whatever the upstream project picks as a default > > > build > > > > target. They are called "convenience binaries" by the project and the > > > > Foundation for a reason. Convenience may vary according to your > > > > circumstances. When HBase finally ships builds compiled against > Hadoop > > 3 > > > by > > > > default, anyone still using 2.x in production will face the same > > problem > > > > (in reverse). The Phoenix project also faces this issue for what it's > > > > worth. Their readme and build instructions walk users through > > rebuilding > > > > HBase using -Dhadoop.profile=3.0 as a first step as well. > > > > > > > > > > > > On Mon, Oct 17, 2022 at 1:52 PM Lars Francke <lars.fran...@gmail.com > > > > > > wrote: > > > > > > > > > Hi everyone, > > > > > > > > > > we've just recently tried getting the HBase Spark connector running > > > > against > > > > > Spark 3.3 and HBase 2.4.x and failed miserably. It was a mess of > > Scala > > > > and > > > > > Java issues, classpath, NoClassDef etc. > > > > > > > > > > The trauma is too recent for me to dig up the details but if > needed I > > > can > > > > > ;-) > > > > > > > > > > For now I'm just wondering if anyone has succeeded using this > > > > combination? > > > > > > > > > > Cheers, > > > > > Lars > > > > > > > > > > > > > > > > > -- > > > > Best regards, > > > > Andrew > > > > > > > > Unrest, ignorance distilled, nihilistic imbeciles - > > > > It's what we’ve earned > > > > Welcome, apocalypse, what’s taken you so long? > > > > Bring us the fitting end that we’ve been counting on > > > > - A23, Welcome, Apocalypse > > > > > > > > > > > > > -- > > Best regards, > > Andrew > > > > Unrest, ignorance distilled, nihilistic imbeciles - > > It's what we’ve earned > > Welcome, apocalypse, what’s taken you so long? > > Bring us the fitting end that we’ve been counting on > > - A23, Welcome, Apocalypse > > >
