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Hudson commented on HDFS-2465: ------------------------------ Integrated in Hadoop-Common-trunk-Commit #1193 (See [https://builds.apache.org/job/Hadoop-Common-trunk-Commit/1193/]) HDFS-2465. Add HDFS support for fadvise readahead and drop-behind. Contributed by Todd Lipcon. todd : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1190626 Files : * /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/DFSConfigKeys.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockReceiver.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/BlockSender.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/datanode/DataNode.java > Add HDFS support for fadvise readahead and drop-behind > ------------------------------------------------------ > > Key: HDFS-2465 > URL: https://issues.apache.org/jira/browse/HDFS-2465 > Project: Hadoop HDFS > Issue Type: Improvement > Components: data-node, performance > Affects Versions: 0.23.0 > Reporter: Todd Lipcon > Assignee: Todd Lipcon > Fix For: 0.23.0 > > Attachments: hdfs-2465.txt, hdfs-2465.txt, hdfs-2465.txt, > hdfs-2465.txt > > > This is the HDFS side of HADOOP-7714. The initial implementation is heuristic > based and should be considered experimental, as discussed in the parent JIRA. > It should be off by default until better heuristics, APIs, and tuning > experience is developed. -- 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