Hi Denny, Thanks for asking questions.
Notebook scheduling feature with cron like scheduler in Zeppelin rely on quartz scheduler library (http://www.quartz-scheduler.org/). I think it's platform independent and will not be a problem on windows. Once notebook is scheduled, quartz scheduler runs the same notebook instance that user use with GUI front-end. So any modification on the notebook will be reflected to scheduled job. If quartz scheduler runs notebook, user with GUI front-end will need to wait until the job complete to run, vise versa. More useful feature and better UI for notebook scheduling would be nice. It is not specifically planned (JIRA, wiki, etc) but improvements are always welcome. Authentication is working on https://github.com/apache/incubator-zeppelin/pull/586 by Hayssam. I think it is the first step for supporting multi-tenancy. and i believe Zeppelin will have multi-tenant environment eventually. Hope this helps Thanks, moon On Tue, Jan 5, 2016 at 9:49 PM Yahoo <[email protected]> wrote: > Hi > > I have few questions about the notebook job behaviors: > > 1. It uses cron job to schedule a notebook to run. The cron job is OS > dependent. It is available only in Unix/Linux system. Do you see if the > Zeppelin will be ported to run in Windows? Since cron job is not available > in Windows, you will need to use Windows specific scheduling mechanism. I > wonder how extensible is the current job implementation, is it feasible to > replace it with some open source scheduler that can support different OS? > > 2. Once a notebook is scheduled, it seems user can still work on the > notebook. Does the scheduler create a copy of notebook to run? Or it only > runs the same instance of the notebook? What happens if user is working on > the notebook that it is about to be run by the job? Will the notebook > become unavailable to user until the job run is complete? > > 3. The UI to schedule a job run seems lacking. User expects a more > elaborate UI to set the job start time, frequency (daily, weekly, monthly, > etc), end time, email notification, etc. Is there a plan to improve the > scheduling UI in future release? I see a proposal for a job monitoring UI, > which is quite nice. > > 4. Current Zeppelin notebook supports only single user environment. I > wonder if it will be extended to support multitent environment in future > release. The job will then need to support multiple users running different > jobs at vary intervals. Do you see any issues to support multiple users? > > Thanks > Denny > > >
