[ https://issues.apache.org/jira/browse/HDFS-2080?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Todd Lipcon resolved HDFS-2080. ------------------------------- Resolution: Fixed Fix Version/s: 0.23.1 Hadoop Flags: Reviewed All of the subtasks have now been completed and committed for 0.23.1 and 0.24. Thanks to those that helped, especially Nathan, Kihwal, Eli, and Nicholas for the many reviews. > Speed up DFS read path by lessening checksum overhead > ----------------------------------------------------- > > Key: HDFS-2080 > URL: https://issues.apache.org/jira/browse/HDFS-2080 > Project: Hadoop HDFS > Issue Type: Improvement > Components: hdfs client, performance > Affects Versions: 0.23.0 > Reporter: Todd Lipcon > Assignee: Todd Lipcon > Fix For: 0.24.0, 0.23.1 > > Attachments: hdfs-2080.txt, hdfs-2080.txt > > > I've developed a series of patches that speeds up the HDFS read path by a > factor of about 2.5x (~300M/sec to ~800M/sec for localhost reading from > buffer cache) and also will make it easier to allow for advanced users (eg > hbase) to skip a buffer copy. -- 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