Re: Hive configuration property

2012-09-26 Thread Abhishek
> Regards > Abhi > > Sent from my iPhone > > On Sep 26, 2012, at 12:39 PM, wrote: > > Yes Abshiek, > By setting below prop. You ll get better result. The no should depends on ur > data size. > > Regards > Ashok S. > > From: Bejoy KS [mailto:be

RE: Hive configuration property

2012-09-26 Thread ashok.samal
omatically determine number of reducers. Thanks Ashok S. From: Abhishek [mailto:abhishek.dod...@gmail.com] Sent: 26 September 2012 22:27 To: user@hive.apache.org Cc: ; Subject: Re: Hive configuration property Hi Ashok, Thanks for the reply, can you please tell me how many reducers should be consid

Re: Hive configuration property

2012-09-26 Thread Abhishek
epends on ur > data size. > > Regards > Ashok S. > > From: Bejoy KS [mailto:bejoy...@yahoo.com] > Sent: 26 September 2012 21:04 > To: user@hive.apache.org > Subject: Re: Hive configuration property > > Hi Abshiek > > Based on my experience you

RE: Hive configuration property

2012-09-26 Thread ashok.samal
Yes Abshiek, By setting below prop. You ll get better result. The no should depends on ur data size. Regards Ashok S. From: Bejoy KS [mailto:bejoy...@yahoo.com] Sent: 26 September 2012 21:04 To: user@hive.apache.org Subject: Re: Hive configuration property Hi Abshiek Based on my experience

Re: Hive configuration property

2012-09-26 Thread Abhishek
> yield you better performance numbers. > > Regards, > Bejoy KS > > From: Abhishek > To: "user@hive.apache.org" > Cc: "user@hive.apache.org" > Sent: Wednesday, September 26, 2012 7:04 PM > Subject: Re: Hive configuration prop

Re: Hive configuration property

2012-09-26 Thread Bejoy KS
e.org" Cc: "user@hive.apache.org" Sent: Wednesday, September 26, 2012 7:04 PM Subject: Re: Hive configuration property Thanks Bharath, Your points make sense.I'll try thisĀ "hive.exec.reducers.max" property. Regards Abhi Sent from my iPhone On Sep 26, 201

Re: Hive configuration property

2012-09-26 Thread Abhishek
Thanks Bharath, Your points make sense.I'll try this "hive.exec.reducers.max" property. Regards Abhi Sent from my iPhone On Sep 26, 2012, at 9:23 AM, bharath vissapragada wrote: > > I'm no expert in hive, but here are my 2 cents. > > By default hive schedules a reducer per every 1 GB of

Re: Hive configuration property

2012-09-26 Thread bharath vissapragada
I'm no expert in hive, but here are my 2 cents. By default hive schedules a reducer per every 1 GB of data ( change that value by modifying *hive.exec.reducers.bytes.per.reducer ) *. If your input data is huge, there will be large number of reducers, which might be unnecessary.( Sometimes large nu