Thanks! Some responses inline... "kulkarni.swar...@gmail.com" <kulkarni.swar...@gmail.com> wrote on 09/28/2015 10:08:08 AM:
> From: "kulkarni.swar...@gmail.com" <kulkarni.swar...@gmail.com> > To: "dev@hive.apache.org" <dev@hive.apache.org> > Date: 09/28/2015 10:08 AM > Subject: Re: Derby version used by Hive > > Richard, > > A quick eye-balling of the code doesn't show anything that could > potentially be a blocker for this upgrade. Also +1 on staying on the latest > and greatest. Please feel free to open up a JIRA and submit the patch. Great! I'll try my hand at this after Derby 10.12.1.1 is published to the maven repositories next week. > > Also just out of curiosity, what are you really using a derby backed store > for? Right now just for testing. Its standards compliance makes it a good starting point for implementing a portable SQL layer. Thanks, -Rick > > On Mon, Sep 28, 2015 at 11:02 AM, Richard Hillegas <rhil...@us.ibm.com> > wrote: > > > > > > > I haven't received a response to the following message, which I posted last > > week. Maybe my message rambled too much. Here is an attempt to pose my > > question more succinctly: > > > > Q: Does anyone know of any reason why we can't upgrade Hive's Derby version > > to 10.12.1.1, the new version being vetted by the Derby community right > > now? > > > > Thanks, > > -Rick > > > > > I am following the Hive build instructions here: > > > > > > > https://cwiki.apache.org/confluence/display/Hive/ > GettingStarted#GettingStarted-InstallationandConfiguration > > > . > > > > > > I noticed that Hive development seems to be using an old version of > > Derby: > > > 10.10.2.0. Is there some defect in the most recent Derby version > > > (10.11.1.1) which prevents Hive from upgrading to 10.11.1.1? The only > > > Hive-tagged Derby bug which I can find is > > > https://issues.apache.org/jira/browse/DERBY-6358. That issue doesn't > > seem > > > to be version-specific and it mentions a resolved Hive issue: > > > https://issues.apache.org/jira/browse/HIVE-8739. > > > > > > Staying with 10.10.2.0 makes sense if you need to run on some ancient > > JVMs: > > > Java SE 5 or Java ME CDC/Foundation Profile 1.1. Hadoop, however, > > requires > > > at least Java 6 according to > > > https://wiki.apache.org/hadoop/HadoopJavaVersions. > > > > > > Note that the Derby community expects to release version 10.12.1.1 soon: > > > https://wiki.apache.org/db-derby/DerbyTenTwelveOneRelease. This might be > > a > > > good opportunity for Hive to upgrade to a more capable version of Derby. > > > > > > I mention this because the Derby version used by Hive ends up on the > > > classpath used by downstream projects (like Spark). That makes it awkward > > > for downstream projects to use more current Derby versions. Do you know > > of > > > any reason that downstream projects shouldn't override the Derby version > > > currently preferred by Hive? > > > > > > Thanks, > > > -Rick > > > > > > -- > Swarnim
