Re: Passing an Object to All Reducers

2011-05-06 Thread Geoffry Roberts
Steve, Yes the object is known at start up and is read only. The mappers don't touch it. I considered serializing to a string. I was wondering if there wasn't a more excellent way. Thanks On 6 May 2011 10:55, Steve Lewis wrote: > If possible serialize the object as XML then add it as a set

Re: Passing an Object to All Reducers

2011-05-06 Thread David Rosenstrauch
On 05/06/2011 01:12 PM, Geoffry Roberts wrote: All, I need for each one of my reducers to have read access to a certain object or a clone thereof. I can instantiate this object a start up. How can I give my reducers a copy? Serialize it to a string, set it as a configuration setting on the j

Re: Passing an Object to All Reducers

2011-05-06 Thread Steve Lewis
If possible serialize the object as XML then add it as a set of lines to the config - alternatively serialize it (maybe xml) to a known spot in HDFS and read it in in the setup code in the reducer - I assume this is an object known at the start of the job and not modified by the mapper On Fri, May

Passing an Object to All Reducers

2011-05-06 Thread Geoffry Roberts
All, I need for each one of my reducers to have read access to a certain object or a clone thereof. I can instantiate this object a start up. How can I give my reducers a copy? -- Geoffry Roberts