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Cristina L. Abad commented on HADOOP-7753: ------------------------------------------ Yes, I know that. The issue is that some people may be using the 32-bit libraries on 64-bit architectures. This actually works fine except if you turn on these features and you are running on a system with the bug I mentioned. Anyway, this is a minor problem, just thought it would be a good idea to mention it here in case someone runs into the problem and doesn't know what's going on. > Support fadvise and sync_data_range in NativeIO, add ReadaheadPool class > ------------------------------------------------------------------------ > > Key: HADOOP-7753 > URL: https://issues.apache.org/jira/browse/HADOOP-7753 > Project: Hadoop Common > Issue Type: Sub-task > Components: io, native, performance > Affects Versions: 0.23.0 > Reporter: Todd Lipcon > Assignee: Todd Lipcon > Fix For: 0.23.0 > > Attachments: HADOOP-7753.branch-1.patch, HADOOP-7753.branch-1.patch, > hadoop-7753.txt, hadoop-7753.txt, hadoop-7753.txt, hadoop-7753.txt, > hadoop-7753.txt > > > This JIRA adds JNI wrappers for sync_data_range and posix_fadvise. It also > implements a ReadaheadPool class for future use from HDFS and MapReduce. -- 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