[ https://issues.apache.org/jira/browse/HDFS-6115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tsz Wo Nicholas Sze updated HDFS-6115: -------------------------------------- Resolution: Fixed Fix Version/s: 2.4.0 Status: Resolved (was: Patch Available) I have committed this. Thanks, Vinay! > flush() should be called for every append on block scan verification log > ------------------------------------------------------------------------ > > Key: HDFS-6115 > URL: https://issues.apache.org/jira/browse/HDFS-6115 > Project: Hadoop HDFS > Issue Type: Bug > Components: datanode > Affects Versions: 2.3.0, 2.4.0 > Reporter: Vinayakumar B > Assignee: Vinayakumar B > Priority: Minor > Fix For: 2.4.0 > > Attachments: HDFS-6115.patch > > > {{RollingLogsImpl#out}} is {{PrintWriter}} and it have the default > buffersize of 8kB. > So until the 8kB buffer is filled all scan verification entries will not be > flushed, hence there will be chance loosing this scan information if the > datanode gets restarted. And One more scan will happen for these blocks. > 8kB will have ~80 entries, so 80 blocks needs to be re-scanned again. -- This message was sent by Atlassian JIRA (v6.2#6252)