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Devaraj Das commented on HADOOP-6978: ------------------------------------- Yeah, our belief is that the shuffle process ends up making a lot of the getpw* calls and we have already seen a couple of ldap servers outages. We can do a follow up patch though. If the cluster has a configuration similar to what i mentioned earlier, then yeah, it'd be really good to have this cache before deployment... > Add JNI support for secure IO operations > ---------------------------------------- > > Key: HADOOP-6978 > URL: https://issues.apache.org/jira/browse/HADOOP-6978 > Project: Hadoop Common > Issue Type: New Feature > Components: io, native, security > Affects Versions: 0.22.0 > Reporter: Todd Lipcon > Assignee: Todd Lipcon > Priority: Critical > Fix For: 0.22.0 > > Attachments: hadoop-6978.txt, hadoop-6978.txt > > > In support of MAPREDUCE-2096, we need to add some JNI functionality. In > particular, we need the ability to use fstat() on an open file stream, and to > use open() with O_EXCL, O_NOFOLLOW, and without O_CREAT. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.