Daryn Sharp created HDFS-12184: ---------------------------------- Summary: Avoid redundant ancestor metadata traversals for listStatus child entries. Key: HDFS-12184 URL: https://issues.apache.org/jira/browse/HDFS-12184 Project: Hadoop HDFS Issue Type: Improvement Components: namenode Affects Versions: 2.7.0 Reporter: Daryn Sharp Assignee: Daryn Sharp
Creating a file status requires metadata for EC, EZ, storage policies, etc that are computed by traversing up the ancestor inodes. List status will incur the same penalties for all child entries when one traversal is enough. The penalty for large directories is not trivial. Storage policies short-circuit the full traversal. The other lookups should too. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org