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From "Kousuke Saruta (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5552) Fix wrong information of "Cluster summay" in dfshealth.html
Date Fri, 22 Nov 2013 07:36:35 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5552?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13829760#comment-13829760
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Kousuke Saruta commented on HDFS-5552:
--------------------------------------

In FSNameSystem#metaSave, there is a similar expression.

{code}
  private void metaSave(PrintWriter out) {
    assert hasWriteLock();
    long totalInodes = this.dir.totalInodes();
    long totalBlocks = this.getBlocksTotal();
    out.println(totalInodes + " files and directories, " + totalBlocks
        + " blocks = " + (totalInodes + totalBlocks)
        + " total filesystem objects");

    blockManager.metaSave(out);
  }
{code}

As you can see, "files and directories, blocks = total filesystem objects" means "totalInode
+ totalBlocks = (totalInodes + totalBlocks)".
On the other hand, dfshealth.dust.html defines "files and directories, blocks = total filesystem
object(s)" means "{TotalLoad}(FSNameSystem#getTotalLoad) + {BlocksTotal}(FSNameSystem#getBlocksTotal)
= {FilesTotal}(FSNameSystem#getFilesTotal)".

TotalLoad means num of active xceivers and FilesTotal means num of inodes so these are different
from metaSave's.

> Fix wrong information of "Cluster summay" in dfshealth.html
> -----------------------------------------------------------
>
>                 Key: HDFS-5552
>                 URL: https://issues.apache.org/jira/browse/HDFS-5552
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>    Affects Versions: 3.0.0
>            Reporter: Shinichi Yamashita
>            Assignee: Haohui Mai
>         Attachments: HDFS-5552.000.patch, dfshealth-html.png
>
>
> "files and directories" + "blocks" = total filesystem object(s). But wrong value is displayed.



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