[jira] [Commented] (HADOOP-8365) Provide ability to disable working sync

["Harsh J (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-8365?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13278667#comment-13278667 ] 

Harsh J commented on HADOOP-8365:
---------------------------------

Eli,

One clarification post the HADOOP-8320 ones, for this particular part in the description:

bq. The sync method itself will still be available and have a broken implementation as that was the behavior before HADOOP-8230.

But sync() does not have a broken implementation as has been shown from its users. I do not understand that sentence completely, as HADOOP-8230 did not change any sync()-related code, so whatever was _working_ or _broken_ before is still the very same and will be even after what this issue aims to change.
                
> Provide ability to disable working sync
> ---------------------------------------
>
>                 Key: HADOOP-8365
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8365
>             Project: Hadoop Common
>          Issue Type: Improvement
>    Affects Versions: 1.1.0
>            Reporter: Eli Collins
>            Priority: Blocker
>
> Per HADOOP-8230 there's a request for a flag to disable the sync code paths that dfs.support.append used to enable. The sync method itself will still be available and have a broken implementation as that was the behavior before HADOOP-8230. This config flag should default to false as the primary motivation for HADOOP-8230 is so HBase works out-of-the-box with Hadoop 1.1.

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