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James Yu commented on HADOOP-9377: ---------------------------------- yes, actually in the attached patch file, I put a suggested fix, to pass the WorkingDirectory from caller method. > FTPFileSystem.listStatus() runs very slow, due to inappropriate call of > filePath.makeQualified > ---------------------------------------------------------------------------------------------- > > Key: HADOOP-9377 > URL: https://issues.apache.org/jira/browse/HADOOP-9377 > Project: Hadoop Common > Issue Type: Bug > Components: fs > Affects Versions: 2.0.3-alpha > Reporter: James Yu > Attachments: HADOOP-9377.diff > > > FTPFileSystem.listStatus() calls > getFileStatus(ftpFiles[i], absolute) calls > new FileStatus(....) calls > filePath.makeQualified(...) calls > fs.getWorkingDirectory() calls > getHomeDirectory() > which creates new FTP connection every time, to get the workdingDirectory. > this caused the FTPFileSystem.listStatus() takes long time to run (on average > 3-6 seconds per file in my test). > I attach a suggestion of fix in FTPFileSystem.java, only 4 lines of change. > after the fix, there's no slowness issue anymore. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira