[IMPALA-3456] Excessive logging on Namenode if ACLs are disabled

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Duplicate
• Affects Version/s: Impala 2.2.4
• Component/s: Catalog
• Labels: catalog-server performance
• Target Version: Product Backlog
• Assignee: Unassigned
• Reporter: Balazs Jeszenszky
• Created: 29/Apr/16 13:03
• Updated: 25/Jan/17 22:09
• Resolved: 25/Jan/17 22:09

Description

When checking whether Impala has access to a path here:
https://github.com/cloudera/Impala/blob/cdh5-trunk/fe/src/main/java/com/cloudera/impala/util/FsPermissionChecker.java#L273-L285

we detect if ACLs are disabled by catching the exceptions thrown by the NN. Logging these exceptions locally (with heavy Impala load) can impact NN performance.