[ https://issues.apache.org/jira/browse/HDFS-3228?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Todd Lipcon updated HDFS-3228: ------------------------------ Comment: was deleted (was: Integrated in Hadoop-Mapreduce-trunk #1108 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1108/]) Amendment to my previous commit, fixing JIRA in CHANGES.txt from HDFS-3228 to HDFS-3428 (Revision 1349556) HDFS-3228. Move DelegationTokenRenewer to common (tucu) (Revision 1349555) Result = FAILURE tucu : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1349556 Files : * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt tucu : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1349555 Files : * /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/DelegationTokenRenewer.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/HftpFileSystem.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/security/token/delegation/DelegationTokenRenewer.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/web/WebHdfsFileSystem.java ) > Use fadvise in local read path > ------------------------------ > > Key: HDFS-3228 > URL: https://issues.apache.org/jira/browse/HDFS-3228 > Project: Hadoop HDFS > Issue Type: Improvement > Components: hdfs client, performance > Reporter: Henry Robinson > Assignee: Henry Robinson > > The read path through BlockReaderLocal does not take advantage of readahead > or drop-behind in the way that BlockSender does. We could arguably stand to > gain even more from hinting about read patterns to the kernel here, so we > should add the same mechanisms to BlockReaderLocal. -- 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