question Re: Why does Ambari treat YARN and MR2 as separate services on console? Should MR2 just be a client like Pig . I know this is not an operations issue but does make you wonder in Archives of Support Questions (Read Only)

Why does Ambari treat YARN and MR2 as separate services on console? Should MR2 just be a client like Pig . I know this is not an operations issue but does make you wonder

nallagangus — Thu, 05 May 2016 20:55:28 GMT

Re: Why does Ambari treat YARN and MR2 as separate services on console? Should MR2 just be a client like Pig . I know this is not an operations issue but does make you wonder

agillan — Thu, 05 May 2016 22:23:39 GMT

It's likely because there are different configuration files (yarn-site.xml and mapred-site.xml), which need to be configured separately. Just like Tez is listed as its own service so you can configure tez-site.xml, but it's really just a client.

Re: Why does Ambari treat YARN and MR2 as separate services on console? Should MR2 just be a client like Pig . I know this is not an operations issue but does make you wonder

nallagangus — Thu, 05 May 2016 22:31:05 GMT

I figured this out. MR2 is listed as a service because MR history server is associated under that. Ambari could have simply named MR2 as MR2 history server which would probably avoided confusion.

I know it is a silly distraction..