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https://issues.apache.org/jira/browse/HDFS-8766?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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James Clampffer updated HDFS-8766:
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Attachment: HDFS-8766.HDFS-8707.004.patch
Thanks Bob and Haohui for the reviews. The new patch should address all of
Bob's suggestions and all but one of Haohui's(no gmock yet).
Haohui, I refactored the error detection code in the file handle
implementation, are you saying I should write a gmock test just for that
function?
I added a simple timeout to clear out the bad datanodes after a specified
period of time (default to 2 minutes). I think that should be sufficient for
the initial API, I plan on adding a lot more features (mostly namenode
operations) to the C api after HDFS-8790; but that depends on this being in.
I'll open a new jira api extentions.
Right now I think it's important to move on to HDFS-8790 as soon as possible.
I'm seeing some odd behavior around the RpcConnectionImpl where virtual methods
are being called mid-destruction when used against a real cluster. I'd like to
knock out those sorts of bugs while this API is still fairly simple.
> Implement a libhdfs(3) compatible API
> -------------------------------------
>
> Key: HDFS-8766
> URL: https://issues.apache.org/jira/browse/HDFS-8766
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Reporter: James Clampffer
> Assignee: James Clampffer
> Attachments: HDFS-8766.HDFS-8707.000.patch,
> HDFS-8766.HDFS-8707.001.patch, HDFS-8766.HDFS-8707.002.patch,
> HDFS-8766.HDFS-8707.003.patch, HDFS-8766.HDFS-8707.004.patch
>
>
> Add a synchronous API that is compatible with the hdfs.h header used in
> libhdfs and libhdfs3. This will make it possible for projects using
> libhdfs/libhdfs3 to relink against libhdfspp with minimal changes.
> This also provides a pure C interface that can be linked against projects
> that aren't built in C++11 mode for various reasons but use the same
> compiler. It also allows many other programming languages to access
> libhdfspp through builtin FFI interfaces.
> The libhdfs API is very similar to the posix file API which makes it easier
> for programs built using posix filesystem calls to be modified to access HDFS.
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