[ https://issues.apache.org/jira/browse/HDFS-5633?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jing Zhao updated HDFS-5633: ---------------------------- Status: Patch Available (was: Open) > Improve OfflineImageViewer to use less memory > --------------------------------------------- > > Key: HDFS-5633 > URL: https://issues.apache.org/jira/browse/HDFS-5633 > Project: Hadoop HDFS > Issue Type: Improvement > Reporter: Jing Zhao > Assignee: Jing Zhao > Priority: Minor > Attachments: HDFS-5633.000.patch > > > Currently after we rename a file/dir which is included in a snapshot, the > file/dir can be linked with two different reference INodes. To avoid > saving/loading the inode multiple times in/from FSImage, we use a temporary > map to record whether we have visited this inode before. > However, in OfflineImageViewer (specifically, in ImageLoaderCurrent), the > current implementation simply records all the directory inodes. This can take > a lot of memory when the fsimage is big. We should only record an inode in > the temp map when it is referenced by an INodeReference, just like what we do > in FSImageFormat. -- This message was sent by Atlassian JIRA (v6.1#6144)