Jing Zhao created HDFS-7619:
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Summary: Erasure Coding: Handling files in snapshots
Key: HDFS-7619
URL: https://issues.apache.org/jira/browse/HDFS-7619
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: Jing Zhao
Assignee: Jing Zhao
Currently for files within snapshots, the file diff only records block list
(before the truncate feature we only recorded file length). Now the file diff
should also be able to capture the block groups.
In the meanwhile, if a file has been truncated in history and the change has
been recorded in snapshots, when we convert the file to EC, the conversion
should also cover the data that were truncated and the corresponding file diff
needs to be updated accordingly.
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