[jira] [Resolved] (MAPREDUCE-4354) Performance improvement with compressor object reinit restriction

[ https://issues.apache.org/jira/browse/MAPREDUCE-4354?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Robert Joseph Evans resolved MAPREDUCE-4354. Resolution: Invalid As this is an issue for a different project I am

In the constructor of JobInProgress, why is it safe to call FileSyste.closeAllForUGI().

Hi, This might be a naive question, but I am having a difficult time to understand it. At the end of the constructor of JobInProgress, in the finally clause, the code calls FileSystem.closeAllForUGI(UserGroupInformation.getCurrentUser()), but why is it safe. My concern is that the current user

FW: TupleWritable value in mapper Not getting cleaned up ( using CompositeInputFormat )

Hi, I am trying to do an outer join on to input files. But while joining the TupleWritable value in the mapper is not getting cleaned up and so is using the previous values of a different key. The code I used is : ( 'plist' is containing the set of paths to be taken as input )