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https://issues.apache.org/jira/browse/HDFS-12464?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16185060#comment-16185060
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Anu Engineer commented on HDFS-12464:
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[~elek] All of the above are excellent questions and I complete agree we need
to have documentation for each one of them.
bq. One high level overview, with diagram, and explain the basic concepts.
Typically for end-users: for the existing users of the HDFS to understand
what's new, and why it's important
I have just done that in HDFS-12551.
bq. I created this more in-depth documentation for the developers/sys-admin who
would like to use the system after they understood what is ozone and how it
works.
That is a very good point, Let us write this and attach it as a document to
HDFS-7240. Rather than shipping it as part of the standard documentation.
However, if you think end users are going to benefit from it, I am open to
doing this.
bq. It could help to understand the Ozone during the HDFS-7240 merge vote.
. I agree that we need more documentation, but I wanted to make sure that we
document the concepts, not the details.
bq. It could help to understand the consequences of turning on ozone. For
example it's a tipical question where will be any data written. I also missed
the definition of the network commiunication for the existing HDFS/YARN. It
could help a lot to debug the network issues.
There is another JIRA the talks about documenting the file system layout and
data storage layout. Let us write docs for those too.
I am posting this as work in progress so that we can break this Patch into
multiple as you have suggested.
> Ozone: More detailed documentation about the ozone components
> -------------------------------------------------------------
>
> Key: HDFS-12464
> URL: https://issues.apache.org/jira/browse/HDFS-12464
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: HDFS-7240
> Affects Versions: HDFS-7240
> Reporter: Elek, Marton
> Assignee: Elek, Marton
> Labels: ozoneDoc
> Attachments: HDFS-12464-HDFS-7240.001.patch,
> HDFS-7240-HDFS-12464.001.patch
>
>
> I started to write a more detailed introduction about the Ozone components.
> The goal is to explain the basic responsibility of the components and the
> basic network topology (which components sends messages and to where?).
>
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