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Identify mappers and reducers in beeline

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Identify mappers and reducers in beeline

New Contributor

How to identify mappers and reducers allocated while submitting a query in beeline?

tried enabling debug property but doesn't show no. of mappers and no. of reducers

2 REPLIES 2

Re: Identify mappers and reducers in beeline

@Spartan

Try setting this property at session level and see if it helps?

hive.tez.exec.print.summary=true

Ref: https://community.hortonworks.com/content/supportkb/49194/how-to-capture-details-on-execution-time-o...

Re: Identify mappers and reducers in beeline

Expert Contributor

If query progress along with number of mapper & reducer task are not shown in console, please check below properties are set to true.

hive.server2.in.place.progress
hive.tez.exec.inplace.progress