[ https://issues.apache.org/jira/browse/HADOOP-9223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Zesheng Wu updated HADOOP-9223: ------------------------------- Attachment: HADOOP-9223.patch > support specify config items through system property > ---------------------------------------------------- > > Key: HADOOP-9223 > URL: https://issues.apache.org/jira/browse/HADOOP-9223 > Project: Hadoop Common > Issue Type: Improvement > Components: conf > Affects Versions: 2.0.0-alpha > Reporter: Zesheng Wu > Priority: Minor > Labels: configuration, hadoop > Fix For: 2.0.0-alpha > > Attachments: HADOOP-9223.patch > > Original Estimate: 24h > Remaining Estimate: 24h > > The current hadoop config items are mainly interpolated from the *-site.xml > files. In our production environment, we need a mechanism that can specify > config items through system properties, which is something like the gflags > for system built with C++, it's really very handy. > The main purpose of this patch is to improve the convenience of hadoop > systems, especially when people do testing or perf tuning, which always need > to modify the *-site.xml files > If this patch is applied, then people can start hadoop programs in this way: > java -cp $class_path -Dhadoop.property.$name=$value $program -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira