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From "Mingliang Liu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-13822) Use GlobalStorageStatistics.INSTANCE.reset() at FileSystem#clearStatistics()
Date Thu, 17 Nov 2016 05:15:59 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-13822?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15672764#comment-15672764
] 

Mingliang Liu commented on HADOOP-13822:
----------------------------------------

That one is a bit tricky.

The parent JIRA itself is a patch and has committed. Then we had there are a few of follow-on
tasks. At that time I thought that may be resolved in weeks. After I realized the tasks has
been pending review for a while, I regret not having created a logical umbrella JIRA.

Let's do this: we don't re-open the parent JIRA as the patch has been committed, and backported
to {{branch-2}} branch. Re-opening that will be confusing. Instead, let's get that code in.
I need reviews and ping-ed Jitendra and Colin more than once; it seems they are busy in other
projects and not actively reviewing the left 2 or 3 patches. Can I ask you here review/commit
that patches?

# [HADOOP-13435] Add a new thread-local mechanism for aggregating file system storage stats.
This includes the new ThreadLocalStorageStatistics class and its test and changes in FileSystemStorageStatistics
that use it. After that, the FileSystemStorageStatistics can live without the deprecated FileSystem$Statistics
implementation.
# [HADOOP-13032] Make FileSystems, FileContext, MapReduce and rack-aware read stats use the
new FileSystemStorageStatistics interface. And remove the FileSystem$Statistics and update
all its usages

> Use GlobalStorageStatistics.INSTANCE.reset() at FileSystem#clearStatistics()
> ----------------------------------------------------------------------------
>
>                 Key: HADOOP-13822
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13822
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs
>            Reporter: Brahma Reddy Battula
>            Assignee: Brahma Reddy Battula
>             Fix For: 2.8.0, 3.0.0-alpha2
>
>         Attachments: HADOOP-13822.patch
>
>
> As per my [comment here|thttps://issues.apache.org/jira/browse/HADOOP-13283?focusedCommentId=15672426&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-15672426]
 GlobalStorageStatistics.INSTANCE.reset() can be used at FileSystem#clearStatistics()



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