[
https://issues.apache.org/jira/browse/HDFS-9455?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15070801#comment-15070801
]
Surendra Singh Lilhore commented on HDFS-9455:
----------------------------------------------
Thanks [~archanat] for reporting this issue..
[~daisuke.kobayashi] this improper message is coming because of code exist in
DistCp.run()
{code}
try {
inputOptions = (OptionsParser.parse(argv));
setTargetPathExists();
LOG.info("Input Options: " + inputOptions);
} catch (Throwable e) {
LOG.error("Invalid arguments: ", e);
System.err.println("Invalid arguments: " + e.getMessage());
OptionsParser.usage();
return DistCpConstants.INVALID_ARGUMENT;
}
{code}
Here distcp will parse the argument and "setTargetPathExists()" will check the
existence of target path. If distcp is not able to connect with target
filesystem then it will throw the exception , but that exception will log with
wrong message.
{{LOG.error("Invalid arguments: ", e);}}
> In distcp, Invalid Argument Error thrown in case of filesystem operation
> failure
> --------------------------------------------------------------------------------
>
> Key: HDFS-9455
> URL: https://issues.apache.org/jira/browse/HDFS-9455
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: distcp
> Reporter: Archana T
> Assignee: Archana T
> Priority: Minor
>
> When Filesystem Operation failure happens during discp,
> Wrong exception : Invalid Argument thrown along with distcp command Usage.
> {color:red}
> hadoop distcp webhdfs://IP:25003/test/testfile webhdfs://IP:25003/myp
> Invalid arguments: Unexpected end of file from server
> usage: distcp OPTIONS [source_path...] <target_path>
> OPTIONS
> -append Reuse existing data in target files and
> append new data to them if possible
> -async Should distcp execution be blocking
> -atomic Commit all changes or none
> -bandwidth <arg> Specify bandwidth per map in MB
> -delete Delete from target, files missing in source
> -diff <arg> Use snapshot diff report to identify the
> difference between source and target
> -f <arg> List of files that need to be copied
> -filelimit <arg> (Deprecated!) Limit number of files copied
> to <= n
> -i Ignore failures during copy
> .....
> {color}
> Instead Proper Exception has to be thrown.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
