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https://issues.apache.org/jira/browse/HDFS-13643?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16497380#comment-16497380
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Duo Zhang edited comment on HDFS-13643 at 6/1/18 12:41 AM:
-----------------------------------------------------------
Yes, this will be committed to a feature branch first, so the intention here is
to provide the basic support only, so we can finish it soon and then the follow
on work on async dfs implementation can start ASAP. We can add security support
later as it is not a blocked for the dfs implementation.
And for modifying the rpc implementation in hadoop-common is what we want to
avoid here... In HDFS-9924 some other guys tried this approach and obviously
they were in trouble... And for me, as hadoop-common is the core part of
hadoop, almost every module in hadoop depend on it, I do not want to modify its
code unless we have a very strong evidence that the modified version is better.
So I plan to implement an async rpc client in HDFS project only and if later
the async dfs project is proven to be a good one, then we can think of merge
the code with hadoop-common.
Thanks.
was (Author: apache9):
Yes, this will be committed to a feature branch first, so the intention here is
to provide the basic support only, so we can finish it soon and then the follow
on work on async dfs implementation can start ASAP. We can add security support
later as it is not a blocked for the dfs implementation.
And for modifying the rpc implementation in hadoop-common is what we want to
avoid here... In HDFS-9924 some other guys tried this approach and obviously
they failed... And for me, as hadoop-common is the core part of hadoop, almost
every module in hadoop depend on it, I do not want to modify its code unless we
have a very strong evidence that the modified version is better. So I plan to
implement an async rpc client in HDFS project only and if later the async dfs
project is proven to be a good one, then we can think of merge the code with
hadoop-common.
Thanks.
> Implement basic async rpc client
> --------------------------------
>
> Key: HDFS-13643
> URL: https://issues.apache.org/jira/browse/HDFS-13643
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: ipc
> Reporter: Duo Zhang
> Assignee: Duo Zhang
> Priority: Major
> Fix For: HDFS-13572
>
> Attachments: HDFS-13643.patch
>
>
> Implement the basic async rpc client so we can start working on the DFSClient
> implementation ASAP.
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