[ https://issues.apache.org/jira/browse/HDFS-4425?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Harsh J resolved HDFS-4425. --------------------------- Resolution: Invalid The Apache JIRA is not for user help but only for confirmed bug reports. Please send usage help requests such as your questions to u...@hadoop.apache.org. I'm resolving this as Invalid; lets carry forward on your email instead. Many have already answered you there. The key to tweak the default is dfs.namenode.resource.du.reserved. > NameNode low on available disk space > ------------------------------------ > > Key: HDFS-4425 > URL: https://issues.apache.org/jira/browse/HDFS-4425 > Project: Hadoop HDFS > Issue Type: Bug > Components: namenode > Affects Versions: 2.0.0-alpha > Reporter: project > Priority: Critical > > Hi, > Namenode switches into safemode when it has low disk space on the root fs / i > have to manually run a command to leave it. Below are log messages for low > space on root / fs. Is there any parameter so that i can reduce reserved > amount. > 2013-01-21 01:22:52,217 WARN > org.apache.hadoop.hdfs.server.namenode.NameNodeResourceChecker: Space > available on volume '/dev/mapper/vg_lv_root' is 10653696, which is below the > configured reserved amount 104857600 > 2013-01-21 01:22:52,218 WARN > org.apache.hadoop.hdfs.server.namenode.FSNamesystem: NameNode low on > available disk space. Entering safe mode. > 2013-01-21 01:22:52,218 INFO org.apache.hadoop.hdfs.StateChange: STATE* Safe > mode is ON. -- 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