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Posted to hdfs-dev@hadoop.apache.org by "project (JIRA)" <ji...@apache.org> on 2013/01/22 17:26:12 UTC

[jira] [Created] (HDFS-4425) NameNode low on available disk space

project created HDFS-4425:
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             Summary: 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
            Reporter: project


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.




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