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https://issues.apache.org/jira/browse/PIG-2230?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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xuting zhao updated PIG-2230:
-----------------------------
Status: Patch Available (was: Open)
The test-commit unit tests has been run successfully on this change.
As this patch only adds log information into Pig, there is no additional unit
tests designed for this change.
Relevant unit test TestParamSubPreproc.java has been successfully run on this
change.
> 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: 0.9.0, 0.8.0
> Reporter: Anitha Raju
> Assignee: xuting zhao
> Labels: newbie
> Attachments: EmptyParam.patch, 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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