Virajith Jalaparti created HADOOP-17072:
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Summary: Add getClusterRoot and getClusterRoots methods to
FileSystem and ViewFilesystem
Key: HADOOP-17072
URL: https://issues.apache.org/jira/browse/HADOOP-17072
Project: Hadoop Common
Issue Type: Task
Components: fs, viewfs
Reporter: Virajith Jalaparti
In a federated setting (HDFS federation, federation across multiple buckets on
S3, multiple containers across Azure storage), certain system tools/pipelines
require the ability to map paths to the clusters/accounts.
Consider GDPR compliance/retention jobs need to go over the datasets ingested
over a period of T days and remove/quarantine datasets that are not properly
annotated/have reached their retention period. Such jobs can rely on renames to
a global trash/quarantine directory to accomplish their task. However, in a
federated setting, efficient, atomic renames (as those within a single HDFS
cluster) are not supported across the different clusters/shards in federation.
As a result, such jobs will need to get the clusters to which different paths
map to.
To address such cases, this JIRA proposed to get add two new methods to
{{FileSystem}}: {{getClusterRoot}} and {{getClusterRoots()}}.
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