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The "Hive/AdminManual/Configuration" page has been changed by NamitJain. http://wiki.apache.org/hadoop/Hive/AdminManual/Configuration?action=diff&rev1=10&rev2=11 -------------------------------------------------- ||hive.join.emit.interval|| ||1000|| ||hive.map.aggr.hash.percentmemory|| ||(float)0.5|| ||hive.default.fileformat||||TextFile|| + ||hive.merge.mapfiles||Merge small files at the end of a map-only job.||true|| + ||hive.merge.mapredfiles||Merge small files at the end of a map-reduce job.||false|| + ||hive.merge.size.per.task||Size of merged files at the end of the job.||256000000|| + ||hive.merge.size.smallfiles.avgsize||When the average output file size of a job is less than this number, Hive will start an additional map-reduce job to merge the output files into bigger files. This is only done for map-only jobs if hive.merge.mapfiles is true, and for map-reduce jobs if hive.merge.mapredfiles is true.||16000000|| + === Hive MetaStore Configuration Variables === ||'''Variable Name'''||'''Description'''||'''Default Value'''||
