zhihai xu created YARN-3549: ------------------------------- Summary: use JNI-based FileStatus implementation from io.nativeio.NativeIO.POSIX#getFstat instead of shell-based implementation from RawLocalFileSystem in checkLocalDir. Key: YARN-3549 URL: https://issues.apache.org/jira/browse/YARN-3549 Project: Hadoop YARN Issue Type: Bug Components: nodemanager Reporter: zhihai xu Assignee: zhihai xu
Use JNI-based FileStatus implementation from io.nativeio.NativeIO.POSIX#getFstat instead of shell-based implementation from RawLocalFileSystem in checkLocalDir. As discussed in YARN-3491, shell-based implementation getPermission runs shell command "ls -ld" to get permission, which take 4 or 5 ms. We should switch to io.nativeio.NativeIO.POSIX#getFstat as implementation in RawLocalFileSystem to get rid of shell-based implementation for FileStatus. -- This message was sent by Atlassian JIRA (v6.3.4#6332)