[ https://issues.apache.org/jira/browse/HADOOP-6227?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Amareshwari Sriramadasu updated HADOOP-6227: -------------------------------------------- Fix Version/s: 0.20.1 Status: Patch Available (was: Open) > Configuration does not lock parameters marked final if they have no value. > -------------------------------------------------------------------------- > > Key: HADOOP-6227 > URL: https://issues.apache.org/jira/browse/HADOOP-6227 > Project: Hadoop Common > Issue Type: Bug > Components: conf > Reporter: Hemanth Yamijala > Fix For: 0.20.1 > > Attachments: patch-6227-0.20.txt, patch-6227.txt > > > A use-case: Recently, we stumbled on a bug that wanted us to disable the > feature to run a debug script in map/reduce on tasks that fail, specified by > mapred.{map|reduce}.task.debug.script. The best way of disabling it seemed to > be to set it with no value in the cluster configuration and mark it final. > This did not work, however, because the code in configuration explicitly > checks if the value is not null before adding it to the list of final > parameters. > Without an ability to do this, there might be a need to explicitly have a > special way of disabling optional features. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.