HiI found the CDH5 yarn always odded one unavailable process after runing mapreduce for each time.the original yarn process still be there.such as:3472 ThriftServer 3134 NodeManager 3322 HRegionServer 4383 -- process information unavailable 4595 Jps 2978 DataNode I found under the directory of /tmp/hsperfdata_yarn turned up two process id.4383 3134What reason? Is it the error of my configuration? dwld0...@gmail.com