Xiaoyu Yao created HDFS-6990:
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Summary: Add unit test for evict/delete RAM_DISK block with open
handle
Key: HDFS-6990
URL: https://issues.apache.org/jira/browse/HDFS-6990
Project: Hadoop HDFS
Issue Type: Sub-task
Components: datanode
Reporter: Xiaoyu Yao
Assignee: Xiaoyu Yao
This is to verify:
* Evict RAM_DISK block with open handle should fall back to DISK.
* Delete RAM_DISK block (persisted) with open handle should mark the block to
be deleted upon handle close.
Simply open handle to file in DFS name space won't work as expected. We need a
local FS file handle to the block file. The only meaningful case is for Short
Circuit Read. This JIRA is to validate/enable the two cases with SCR enabled
MiniDFSCluster on non-Mac OS.
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