java - Adding Writable objects to Hadoop Configuration -


i see configuration class in hadoop writable http://hadoop.apache.org/docs/current/api/org/apache/hadoop/conf/configuration.html. however, not see of methods has exposed can used add writable object (i see lot of methods set , primitive types int, long). let say, have own writable object , want add configuration mappers , reduces use, how do this?

thanks,

venkat

the configuration not passing entire objects. configuration should used more setting simple parameters needed setup of mappers/reducers. think of conf set variables @ beginning of job. if make changes during middle of run configuration, won't there @ end it's not meant dynamically pass data.

what looking if want pass around entire objects between nodes distributed cache. technically speaking these files, can use standard object serialization add them. about distributed cache.

*apologies linking different hadoop versions, pages bit muddled , hard find need sometimes.


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