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https://issues.apache.org/jira/browse/FLUME-1946?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13601180#comment-13601180
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Brock Noland commented on FLUME-1946:
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Personally I think if we were going to do this, we should fork the file channel
e.g. filechannel2. Then we rip out anything that is legacy, cleanup the code,
and then implement mirroring. I have actually started the fork, cleanup, and
improved unit testing on a private branch awhile back.
> Tolerate disk failure in FileChannel
> ------------------------------------
>
> Key: FLUME-1946
> URL: https://issues.apache.org/jira/browse/FLUME-1946
> Project: Flume
> Issue Type: Bug
> Components: File Channel
> Reporter: Mike Percy
>
> It would be great to investigate changes to the FileChannel that enable it to
> tolerate failure of one or more disks in a group of data directories across
> disks without losing data. This involves implementing support for some form
> of mirroring at the software level, as well as appropriate recovery routines.
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