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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-4425) NameNode low on available disk space
Date Thu, 24 Jan 2013 04:31:18 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4425?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Steve Loughran resolved HDFS-4425.

    Resolution: Cannot Reproduce

Again, I'm closing this issue
# JIRA is not the place to deal with what is currently believed to be a config problem affecting
a single user.
# Hadoop 2.0.0-cdh4.1.2 is not an ASF release: you need to take it up with Cloudera via their
support channels, both paid and mailing list.
# If it is found to be something in the apache codebase then they can file a replicable bug
here which we can all fix together.
# 'critical' is reserved for issues that are considered risks to data across multiple clusters.
This may be critical for you, but given it works for everyone else, minor.

Please, please, please don't use JIRAs for these kind of problems -it's like asking Linus
for help getting networking right on your ubuntu laptop.
> 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

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