Monthly Archives: August 2017

mapreduce的二次排序 SecondarySort

关于二次排序主要涉及到这么几个东西: 在0.20.0 以前使用的是 setPartitionerClass setOutputkeyComparatorClass setOutputValueGroupingComparator 在0.20.0以后使用是 job.setPartitionerClass(Partitioner... Read More | Share it now!

“bad substitution” error running Spark on Yarn

you can update the hdp.version property through Ambari GUI. below are the steps: 1. Go to ‘Ambari -> YARN -> configs’ and go to ‘Advanced’ tab. 2. scroll down the page to till end, there will find an option to add custom... Read More | Share it now!