Ivan Andika created HADOOP-19217:
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Summary: Introduce getTrashPolicy to FileSystem API
Key: HADOOP-19217
URL: https://issues.apache.org/jira/browse/HADOOP-19217
Project: Hadoop Common
Issue Type: Improvement
Components: fs
Reporter: Ivan Andika
Hadoop FileSystem supports multiple FileSystem implementations awareness (e.g.
client is aware of both hdfs:// and ofs:// protocols).
However, it seems that currently Hadoop TrashPolicy remains the same regardless
of the URI scheme. The TrashPolicy is governed by "fs.trash.classname"
configuration and stays the same regardless of the FileSystem implementation.
For example, HDFS defaults to TrashPolicyDefault and Ozone defaults to
TrashPolicyOzone, but only one will be picked since the the configuration will
be overwritten by the other.
Therefore, I propose to couple the TrashPolicy for each specific FileSystem
implementation by introducing a new FileSystem#getTrashPolicy.
TrashPolicy#getInstance can call FileSystem#getTrashPolicy to get the
appropriate TrashPolicy.
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