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From "Daryn Sharp (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-1751) Intrinsic limits for HDFS files, directories
Date Mon, 14 Mar 2011 14:52:29 GMT
Intrinsic limits for HDFS files, directories
--------------------------------------------

                 Key: HDFS-1751
                 URL: https://issues.apache.org/jira/browse/HDFS-1751
             Project: Hadoop HDFS
          Issue Type: New Feature
          Components: data-node
    Affects Versions: 0.22.0
            Reporter: Daryn Sharp
            Assignee: Daryn Sharp
             Fix For: 0.23.0


Enforce a configurable limit on:
  the length of a path component
  the number of names in a directory

The intention is to prevent a too-long name or a too-full directory. This is not about RPC
buffers, the length of command lines, etc. There may be good reasons for those kinds of limits,
but that is not the intended scope of this feature. Consequently, a reasonable implementation
might be to extend the existing quota checker so that it faults the creation of a name that
violates the limits. This strategy of faulting new creation evades the problem of existing
names or directories that violate the limits.

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