[ https://issues.apache.org/jira/browse/HDFS-7811?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jing Zhao updated HDFS-7811: ---------------------------- Resolution: Fixed Fix Version/s: 2.7.0 Status: Resolved (was: Patch Available) I've committed this to trunk, branch-2 and branch-2.7. > Avoid recursive call getStoragePolicyID in INodeFile#computeQuotaUsage > ---------------------------------------------------------------------- > > Key: HDFS-7811 > URL: https://issues.apache.org/jira/browse/HDFS-7811 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: namenode > Reporter: Xiaoyu Yao > Assignee: Xiaoyu Yao > Priority: Minor > Fix For: 2.7.0 > > Attachments: HDFS-7811.00.patch, HDFS-7811.01.patch, > HDFS-7811.02.patch, HDFS-7811.03.patch, HDFS-7811.04.patch > > > This is a follow up based on comment from [~jingzhao] on HDFS-7723. > I just noticed that INodeFile#computeQuotaUsage calls getStoragePolicyID to > identify the storage policy id of the file. This may not be very efficient > (especially when we're computing the quota usage of a directory) because > getStoragePolicyID may recursively check the ancestral INode's storage > policy. I think here an improvement can be passing the lowest parent > directory's storage policy down while traversing the tree. -- This message was sent by Atlassian JIRA (v6.3.4#6332)