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https://issues.apache.org/jira/browse/HADOOP-2366?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Michele (aka pirroh) Catasta updated HADOOP-2366:
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Attachment: (was: HADOOP-2366-trimmed.patch)
> Space in the value for dfs.data.dir can cause great problems
> ------------------------------------------------------------
>
> Key: HADOOP-2366
> URL: https://issues.apache.org/jira/browse/HADOOP-2366
> Project: Hadoop Core
> Issue Type: Bug
> Components: conf
> Reporter: Ted Dunning
> Assignee: Todd Lipcon
> Attachments: HADOOP-2366-trimmed.patch, HADOOP-2366.patch
>
>
> The following configuration causes problems:
> <property>
> <name>dfs.data.dir</name>
> <value>/mnt/hstore2/hdfs, /home/foo/dfs</value>
> <description>
> Determines where on the local filesystem an DFS data node should store its
> bl
> ocks. If this is a comma-delimited list of directories, then data will be
> stor
> ed in all named directories, typically on different devices. Directories
> that
> do not exist are ignored.
> </description>
> </property>
> The problem is that the space after the comma causes the second directory for
> storage to be " /home/foo/dfs" which is in a directory named <SPACE> which
> contains a sub-dir named "home" in the hadoop datanodes default directory.
> This will typically cause the user's home partition to fill, but will be very
> hard for the user to understand since a directory with a whitespace name is
> hard to understand.
> My proposed solution would be to trimLeft all path names from this and
> similar property after splitting on comma. This still allows spaces in file
> and directory names but avoids this problem.
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