Jiandan Yang created HDFS-12348:
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Summary: disable removing block to trash while rolling upgrade
Key: HDFS-12348
URL: https://issues.apache.org/jira/browse/HDFS-12348
Project: Hadoop HDFS
Issue Type: New Feature
Components: datanode
Reporter: Jiandan Yang
Assignee: Jiandan Yang
DataNode remove block file and meta file to trash while rolling upgrade，and do
delete when
executing finalize. But frequently creating and deleting files leads to disk to
be full（eg，Hbase compaction), and we will not rollbacking namespace in
production when rolling upgrade fail. Disable trash of datanode maybe a good
method to avoid disk to be full.
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