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https://issues.apache.org/jira/browse/HADOOP-19217?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18036163#comment-18036163
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ASF GitHub Bot commented on HADOOP-19217:
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ivandika3 opened a new pull request, #8063:
URL: https://github.com/apache/hadoop/pull/8063
### Description of PR
JIRA: https://issues.apache.org/jira/browse/HADOOP-19217
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 tie the TrashPolicy implementation to each
FileSystem implementation by introducing a new FileSystem#getTrashPolicy
interface. TrashPolicy#getInstance can call FileSystem#getTrashPolicy to get
the appropriate TrashPolicy.
> 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
> Priority: Major
>
> 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 tie the TrashPolicy implementation to each FileSystem
> implementation by introducing a new FileSystem#getTrashPolicy interface.
> TrashPolicy#getInstance can call FileSystem#getTrashPolicy to get the
> appropriate TrashPolicy.
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