gianm commented on issue #8933: Assistance migrating from firehoses/parsers to 
input sources/formats
URL: 
https://github.com/apache/incubator-druid/issues/8933#issuecomment-557781083
 
 
   @vogievetsky wrote,
   
   > @gianm I made a thing that if you paste in a firehose based input spec 
into the data loader it will be magically converted to an input source based 
one. I need that because the data loader will soon _only_ work with input 
sources. Do you think this is a bad idea?
   > 
   > I know there are a lot of Druid users that have ingestion specs saved 
somewhere outside of Druid what were you imagining these people will do to get 
onto the new format? Convert it by hand? I figured that the data loader could 
be helpful there.
   
   I was imagining people would convert them by hand, based on the new docs.
   
   The conversion isn't always possible, since there is stuff that firehoses 
can do right now that input sources can't. I think the data loader doing it for 
people would be really helpful if feasible, but doing it 'blindly' won't always 
work for that reason.
   
   Btw I think it makes sense for the release notes to say not to use input 
sources and formats until you're pretty sure you won't want to roll back. Since 
using them will mean that you can't do a rolling downgrade anymore.

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