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https://issues.apache.org/jira/browse/HADOOP-8319?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13271405#comment-13271405
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John George commented on HADOOP-8319:
-------------------------------------
Sorry I missed this comment.
{quote}
The side-effect is the very solution to the bug. If I tell my context: "disable
writing checksums because I really don't care about integrity", then I
implicitly don't care where the data is being written by the context. With the
patch as-is, the user can't reliably control the writing or verification of
checksums w/o explicitly resolving paths and creating a new context for the
resolved path – which kind of defeats the purpose of the context.
{quote}
The user can set/reset the values specific to the path. But like you said, the
other option is to allow user to only set/reset per file context (as opposed to
per AFS that each path belongs to). That might simplify the implementation and
make it less complex for the user as well.
{quote}
Do you have another solution in mind to control the flags?
{quote}
The other solution is to cache the state per AFS which is the latest patch I
have uploaded. But, I am leaning towards your proposal of per FC, especially
since the setWD and getWD are implemented per FC.
Let me know your thoughts either way. Thanks for all your inputs Daryn.
> FileContext does not support setWriteChecksum
> ---------------------------------------------
>
> Key: HADOOP-8319
> URL: https://issues.apache.org/jira/browse/HADOOP-8319
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 2.0.0, 3.0.0
> Reporter: John George
> Assignee: John George
> Attachments: HADOOP-8319.patch, HADOOP-8319.patch, HADOOP-8319.patch,
> HADOOP-8319.patch, HADOOP-8319.patch, HADOOP-8319.patch
>
>
> File Context does not support setWriteChecksum and hence users trying
> to use this functionality fails.
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