[ https://issues.apache.org/jira/browse/HDFS-8900?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Yi Liu updated HDFS-8900: ------------------------- Summary: Optimize XAttr memory footprint. (was: Improve XAttr memory footprint.) > Optimize XAttr memory footprint. > -------------------------------- > > Key: HDFS-8900 > URL: https://issues.apache.org/jira/browse/HDFS-8900 > Project: Hadoop HDFS > Issue Type: Improvement > Components: namenode > Reporter: Yi Liu > Assignee: Yi Liu > > {code} > private final ImmutableList<XAttr> xAttrs; > {code} > Currently we use above in XAttrFeature, it's not efficient from memory point > of view, since {{ImmutableList}} and {{XAttr}} have object memory overhead, > and each object has memory alignment. > We can use a {{byte[]}} in XAttrFeature and do some compact in {{XAttr}}. -- This message was sent by Atlassian JIRA (v6.3.4#6332)