Hi Allen, Thanks for spending the time reviewing it. A new patch was uploaded yesterday on YARN-7198 to address the documentation of missing config, you might want to check. The api-server is basically a REST server which accepts user requests to deploy services, it now has an option to be run as part of RM, which eliminates one separate daemon.
We are open to naming suggestions. So far we used ‘service’ keyword to indicate this feature. E.g. "yarn service” sub-command is used to manage services deployed on YARN such as: yarn service create -f service-spec.json yarn service stop <service-name> Jian > On Oct 6, 2017, at 3:12 PM, Allen Wittenauer <a...@effectivemachines.com> > wrote: > > >> On Oct 6, 2017, at 1:31 PM, Andrew Wang <andrew.w...@cloudera.com> wrote: >> >> - Still waiting on Allen to review YARN native services feature. > > Fake news. > > I’m still -1 on it, at least prior to a patch that posted late > yesterday. I’ll probably have a chance to play with it early next week. > > > Key problems: > > * still haven’t been able to bring up dns daemon due to lacking > documentation > > * it really needs better naming and command structures. When put into > the larger YARN context, it’s very problematic: > > $ yarn —daemon start resourcemanager > > vs. > > $ yarn —daemon start apiserver > > if you awoke from a deep sleep from inside a cave, which one > would you expect to “start YARN”? Made worse that the feature is called > “YARN services” all over the place. > > $ yarn service foo > > … what does this even mean? > > It would be great if other outsiders really looked hard at this branch > to give the team feedback. Once it gets released, it’s gonna be too late to > change it…. > > As a sidenote: > > It’d be great if the folks working on YARN spent some time > consolidating daemons. With this branch, it now feels like we’re approaching > the double digit area of daemons to turn on all the features. It’s well past > ridiculous, especially considering we still haven’t replaced the MRJHS’s > feature set to the point we can turn it off. > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: mapreduce-dev-unsubscr...@hadoop.apache.org > For additional commands, e-mail: mapreduce-dev-h...@hadoop.apache.org >
