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From "xuting zhao (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PIG-2230) Display empty param instead of usage error message
Date Fri, 28 Oct 2011 16:45:32 GMT

     [ https://issues.apache.org/jira/browse/PIG-2230?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

xuting zhao updated PIG-2230:
-----------------------------

    Attachment: EmptyParam.patch
    
> Display empty param instead of usage error message
> --------------------------------------------------
>
>                 Key: PIG-2230
>                 URL: https://issues.apache.org/jira/browse/PIG-2230
>             Project: Pig
>          Issue Type: Improvement
>    Affects Versions: site
>            Reporter: Anitha Raju
>            Assignee: xuting zhao
>              Labels: newbie
>             Fix For: site
>
>         Attachments: EmptyParam.patch
>
>
> Hi,
> When empty param is passed in the command line, it prints usage error. Even if the value
of the param is a space " " it shows the usage error.
> ---------------
> $ pig -useversion 0.9 -param test=" " test.pig
> USING: /grid/0/gs/pig/0.9
> 2011-08-22 05:06:08,538 [main] INFO  org.apache.pig.Main - Logging error messages to:
/homes/anithar/pig_1313989568534.log
> Apache Pig version 0.9.0.1105251322 (r1127671)
> compiled May 25 2011, 20:22:22
> USAGE: Pig [options] [-] : Run interactively in grunt shell.
>        Pig [options] -e[xecute] cmd [cmd ...] : Run cmd(s).
>        Pig [options] [-f[ile]] file : Run cmds found in file.
>   options include:
>     -4, -log4jconf - Log4j configuration file, overrides log conf
>     -b, -brief - Brief logging (no timestamps)
>     -c, -check - Syntax check
>     -d, -debug - Debug level, INFO is default
>     -e, -execute - Commands to execute (within quotes)
>     -f, -file - Path to the script to execute
>     -g, -embedded - ScriptEngine classname or keyword for the ScriptEngine
>     -h, -help - Display this message. You can specify topic to get help for that topic.
>         properties is the only topic currently supported: -h properties.
>     -i, -version - Display version information
>     -l, -logfile - Path to client side log file; default is current working directory.
>     -m, -param_file - Path to the parameter file
>     -p, -param - Key value pair of the form param=val
>     -r, -dryrun - Produces script with substituted parameters. Script is not executed.
>     -t, -optimizer_off - Turn optimizations off. The following values are supported:
>             SplitFilter - Split filter conditions
>             MergeFilter - Merge filter conditions
>             PushUpFilter - Filter as early as possible
>             PushDownForeachFlatten - Join or explode as late as possible
>             ColumnMapKeyPrune - Remove unused data
>             LimitOptimizer - Limit as early as possible
>             AddForEach - Add ForEach to remove unneeded columns
>             MergeForEach - Merge adjacent ForEach
>             LogicalExpressionSimplifier - Combine multiple expressions
>             All - Disable all optimizations
>         All optimizations are enabled by default. Optimization values are case insensitive.
>     -v, -verbose - Print all error messages to screen
>     -w, -warning - Turn warning logging on; also turns warning aggregation off
>     -x, -exectype - Set execution mode: local|mapreduce, default is mapreduce.
>     -F, -stop_on_failure - Aborts execution on the first failed job; default is off
>     -M, -no_multiquery - Turn multiquery optimization off; default is on
>     -P, -propertyFile - Path to property file
> -------------------
> Instead of printing the usage error, can you show which param is empty.
> Regards,
> Anitha

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