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From "Ravi Phulari (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HADOOP-6702) Incorrect exit codes for "dfs -chown", "dfs -chgrp" when input is given in wildcard format.
Date Mon, 10 May 2010 22:18:31 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6702?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Ravi Phulari resolved HADOOP-6702.
----------------------------------

    Resolution: Fixed

HADOOP-6701 Fixes this issue.

> Incorrect exit codes for "dfs -chown", "dfs -chgrp"  when input is given in wildcard
format.
> --------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-6702
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6702
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>    Affects Versions: 0.19.1, 0.20.0, 0.20.1, 0.20.2
>            Reporter: Ravi Phulari
>            Assignee: Ravi Phulari
>            Priority: Minor
>             Fix For: 0.20.3, 0.21.0, 0.22.0
>
>
> Currently incorrect exit codes  are given for "dfs -chown", "dfs -chgrp"  when input
is given in wildcard format.
> This bug is due to missing update of errors count in {{FsShell.java}}.
> {code:title=FsShell.java|borderStyle=solid}
> int runCmdHandler(CmdHandler handler, String[] args,
>                                    int startIndex, boolean recursive) 
>                                    throws IOException {
>     int errors = 0;
>     
>     for (int i=startIndex; i<args.length; i++) {
>       Path srcPath = new Path(args[i]);
>       FileSystem srcFs = srcPath.getFileSystem(getConf());
>       Path[] paths = FileUtil.stat2Paths(srcFs.globStatus(srcPath), srcPath);
>       for(Path path : paths) {
>         try {
>           FileStatus file = srcFs.getFileStatus(path);
>           if (file == null) {
>             System.err.println(handler.getName() + 
>                                ": could not get status for '" + path + "'");
>             errors++;
>           } else {
>             errors += runCmdHandler(handler, file, srcFs, recursive);
>           }
>         } catch (IOException e) {
>           String msg = (e.getMessage() != null ? e.getLocalizedMessage() :
>             (e.getCause().getMessage() != null ? 
>                 e.getCause().getLocalizedMessage() : "null"));
>           System.err.println(handler.getName() + ": could not get status for '"
>                                         + path + "': " + msg.split("\n")[0]);
>           errors++;
>         }
>       }
>     }
>  {code}
> If there are no files on HDFS matching to wildcard input then  {{srcFs.globStatus(srcpath)}}
returns 0. 
> {{ Path[] paths = FileUtil.stat2Paths(srcFs.globStatus(srcPath), srcPath);}}
> Resulting no increment in {{errors}} and command exits with 0 even though file/directory
does not exist.

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