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ASF GitHub Bot commented on HADOOP-15891: ----------------------------------------- Github user JohnZZGithub closed the pull request at: https://github.com/apache/hadoop/pull/424 > Provide Regex Based Mount Point In Inode Tree > --------------------------------------------- > > Key: HADOOP-15891 > URL: https://issues.apache.org/jira/browse/HADOOP-15891 > Project: Hadoop Common > Issue Type: New Feature > Components: fs > Reporter: zhenzhao wang > Assignee: zhenzhao wang > Priority: Major > Attachments: HDFS-13948.001.patch, HDFS-13948.002.patch, > HDFS-13948.003.patch, HDFS-13948.004.patch, HDFS-13948.005.patch, > HDFS-13948.006.patch, HDFS-13948_ Regex Link Type In Mont Table-V0.pdf, > HDFS-13948_ Regex Link Type In Mount Table-v1.pdf > > > This jira is created to support regex based mount point in Inode Tree. We > noticed that mount point only support fixed target path. However, we might > have user cases when target needs to refer some fields from source. e.g. We > might want a mapping of /cluster1/user1 => /cluster1-dc1/user-nn-user1, we > want to refer `cluster` and `user` field in source to construct target. It's > impossible to archive this with current link type. Though we could set > one-to-one mapping, the mount table would become bloated if we have thousands > of users. Besides, a regex mapping would empower us more flexibility. So we > are going to build a regex based mount point which target could refer groups > from src regex mapping. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: common-issues-h...@hadoop.apache.org