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https://issues.apache.org/jira/browse/HDFS-10431?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15301105#comment-15301105
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Xiaobing Zhou commented on HDFS-10431:
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v000 patch is posted for review.
> Refactor tests of Async DFS
> ---------------------------
>
> Key: HDFS-10431
> URL: https://issues.apache.org/jira/browse/HDFS-10431
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs
> Reporter: Xiaobing Zhou
> Assignee: Xiaobing Zhou
> Attachments: HDFS-10431-HDFS-9924.000.patch
>
>
> 1. Move irrelevant parts out of TestAsyncDFSRename
> 2. Limit of max async calls(i.e. ipc.client.async.calls.max) is set and
> cached in ipc.Client. Client instances are cached based on SocketFactory. In
> order to test different cases in various limits, every test (e.g.
> TestAsyncDFSRename and TestAsyncDFS) creates separate instance of
> MiniDFSCluster and that of AsyncDistributedFileSystem hence. This is not
> efficient in that tests may take long time to bootstrap MiniDFSClusters. It's
> even worse if cluster needs to restart in the middle. This proposes to do
> refactoring to use shared instance of AsyncDistributedFileSystem for speedup.
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