Thinking about typical server installation in a corporate environment I'd keep everything compatible with the same JVM version.
I've gone down the route for the cdh branch. Full JDK 7 compatibility doesn't require changes in phoenix-core. Only a downgrade to spark 1.6 ( changes are only needed in a few IT, basically going back from Datasets to Dataframes) and going back to Avatica 1.10 ( involving reverting PHOENIX-4755, PHOENIX-4750 and PHOENIX-4805 ). On Fri, 30 Nov 2018, 18:57 Thomas D'Silva <[email protected] <[email protected]> wrote: > We could allow individual submodules like the queryserver, or phoenix-spark > to be built with their own compiler configuration (1.8+). > This would allow these modules to use Java 1.8 features. I think this would > be a good compromise given that they depend on > features that are provided by versions of spark and avatica that no longer > support Java 1.7. > We can still ensure phoenix-core supports Java 1.7. You would have to skip > building modules that require Java 1.8, WDYT? > > On Thu, Nov 29, 2018 at 6:11 PM Jaanai Zhang <[email protected]> > wrote: > > > I'd vote for keep using java7 on 4.x branches. if upgrades to java8, it > > will impact users who want to upgrade the latest 4.x branches. they must > > consider using java8 in their running environments, maybe their > libraries > > do not support java8, then they have to give up to upgrade. So I think > that > > drops support java7 is not friendly for some users. > > > > > > ---------------------------------------- > > Jaanai Zhang > > Best regards! > > > > > > > > Pedro Boado <[email protected]> 于2018年11月30日周五 上午6:13写道： > > > > > I'd vote for keep compiling 4.x branches in java7. It makes sense as > it's > > > just a new minor release. > > > > > > It's pretty easy reverting back to spark 1.6 and also avatica > dependency > > > could be reverted to the previous version. > > > > > > On 29 Nov 2018 21:41, "Thomas D'Silva" <[email protected]> wrote: > > > > > > We have traditionally followed HBase's java support (see > > > https://hbase.apache.org/book.html#basic.prerequisites). The > > > phoenix-queryserver module has a dependency on Avatica which does not > > > support Java 1.7. The phoenix-spark module depends on spark 2.3.2 which > > > also does not support Java 1.7. Do folks feel we should continue to > > provide > > > support Java 1.7 on the 1.x branches? > > > > > > On Fri, 30 Nov 2018, 18:57 Thomas D'Silva <[email protected] wrote: > We could allow individual submodules like the queryserver, or phoenix-spark > to be built with their own compiler configuration (1.8+). > This would allow these modules to use Java 1.8 features. I think this would > be a good compromise given that they depend on > features that are provided by versions of spark and avatica that no longer > support Java 1.7. > We can still ensure phoenix-core supports Java 1.7. You would have to skip > building modules that require Java 1.8, WDYT? > > On Thu, Nov 29, 2018 at 6:11 PM Jaanai Zhang <[email protected]> > wrote: > > > I'd vote for keep using java7 on 4.x branches. if upgrades to java8, it > > will impact users who want to upgrade the latest 4.x branches. they must > > consider using java8 in their running environments, maybe their > libraries > > do not support java8, then they have to give up to upgrade. So I think > that > > drops support java7 is not friendly for some users. > > > > > > ---------------------------------------- > > Jaanai Zhang > > Best regards! > > > > > > > > Pedro Boado <[email protected]> 于2018年11月30日周五 上午6:13写道： > > > > > I'd vote for keep compiling 4.x branches in java7. It makes sense as > it's > > > just a new minor release. > > > > > > It's pretty easy reverting back to spark 1.6 and also avatica > dependency > > > could be reverted to the previous version. > > > > > > On 29 Nov 2018 21:41, "Thomas D'Silva" <[email protected]> wrote: > > > > > > We have traditionally followed HBase's java support (see > > > https://hbase.apache.org/book.html#basic.prerequisites). The > > > phoenix-queryserver module has a dependency on Avatica which does not > > > support Java 1.7. The phoenix-spark module depends on spark 2.3.2 which > > > also does not support Java 1.7. Do folks feel we should continue to > > provide > > > support Java 1.7 on the 1.x branches? > > > > > >
