[
https://issues.apache.org/jira/browse/HADOOP-8230?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13269858#comment-13269858
]
Suresh Srinivas commented on HADOOP-8230:
-----------------------------------------
bq. There may be a misunderstanding: the dfs.support.append flag never
controlled whether sync was enabled.
dfs.support.append turned off some code paths. These code paths are not just
related to append. They enable durable sync. See the patch where it changes,
"if support append then do x else do y" to do "x" without any check. That is
the behavior I want a user to be able to turn off with a flag.
> Enable sync by default and disable append
> -----------------------------------------
>
> Key: HADOOP-8230
> URL: https://issues.apache.org/jira/browse/HADOOP-8230
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 1.0.0
> Reporter: Eli Collins
> Assignee: Eli Collins
> Fix For: 1.1.0
>
> Attachments: hadoop-8230.txt
>
>
> Per HDFS-3120 for 1.x let's:
> - Always enable the sync path, which is currently only enabled if
> dfs.support.append is set
> - Remove the dfs.support.append configuration option. We'll keep the code
> paths though in case we ever fix append on branch-1, in which case we can add
> the config option back
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
