[jira] [Created] (HDFS-6055) Change default configuration to limit file name length in HDFS

["Suresh Srinivas (JIRA)" <ji...@apache.org>]

Suresh Srinivas created HDFS-6055:
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             Summary: Change default configuration to limit file name length in HDFS
                 Key: HDFS-6055
                 URL: https://issues.apache.org/jira/browse/HDFS-6055
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: namenode
            Reporter: Suresh Srinivas
            Assignee: Suresh Srinivas


Currently configuration "dfs.namenode.fs-limits.max-component-length" is set to 0. With this HDFS file names have no length limit. However, we see more users run into issues where they copy files from HDFS to another file system and the copy fails due to the file name length being too long.

I propose changing the default configuration "dfs.namenode.fs-limits.max-component-length" to a reasonable value. This will be an incompatible change. However, user who need long file names can override this configuration to turn off length limit.

What do folks think?



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