[ https://issues.apache.org/jira/browse/HDFS-3512?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
amith updated HDFS-3512: ------------------------ Status: Patch Available (was: Open) > Delay in scanning blocks at DN side when there are huge number of blocks > ------------------------------------------------------------------------ > > Key: HDFS-3512 > URL: https://issues.apache.org/jira/browse/HDFS-3512 > Project: Hadoop HDFS > Issue Type: Bug > Components: data-node > Affects Versions: 2.0.1-alpha > Reporter: suja s > Assignee: amith > Attachments: HDFS-3512.patch > > > Block scanner maintains the full list of blocks at DN side in a map and there > is no differentiation between the blocks which are already scanned and the > ones not scanend. For every check (ie every 5 secs) it will pick one block > and scan. There are chances that it chooses a block which is already scanned > which leads to further delay in scanning of blcoks which are yet to be > scanned. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira