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From "Arpit Agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-7757) Misleading error messages in FSImage.java
Date Mon, 09 Feb 2015 22:41:35 GMT
Arpit Agarwal created HDFS-7757:
-----------------------------------

             Summary: Misleading error messages in FSImage.java
                 Key: HDFS-7757
                 URL: https://issues.apache.org/jira/browse/HDFS-7757
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: namenode
    Affects Versions: 2.6.0
            Reporter: Arpit Agarwal


If a quota violation is detected while loading an image, the NameNode logs scary error messages
indicating a bug. However the quota violation state is very easy to get into e.g.
# Copy a 2MB file to a directory.
# Set a disk space quota of 1MB on the directory. We are in quota violation state now.

We should reword the error messages, ideally making them warnings and suggesting the administrator
needs to fix the quotas:

Relevant code:
{code}
        LOG.error("BUG: Diskspace quota violation in image for "
            + dir.getFullPathName()
            + " quota = " + dsQuota + " < consumed = " + diskspace);
...
          LOG.error("BUG Disk quota by storage type violation in image for "
              + dir.getFullPathName()
              + " type = " + t.toString() + " quota = "
              + typeQuota + " < consumed " + typeSpace);
{code}



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