I agree it should show an error message instead of stack trace in this case.


On Sat, Apr 23, 2016 at 3:56 AM, Takuma Wakamori
<wakamori.tak...@gmail.com> wrote:
> Hi all,
>
> This is my first post to developers' mailing list.
>
> I have a question about the behavior of HiveServer2.
> When HiveServer2 parse invalid syntaxes sent from beeline2, it prints an
> ParseException in console output.
>
> Example code is below.
>
> ----------------------------------
> Input:
> hostA$ hiveserver2
> hostB$ beeline -u jdbc:hive2://localhost:10000 -n user -p pass -e "invalid
> syntax;"
>
> Output:
> hostA$ NoViableAltException(26@[])
>
>        [0/1248]
>         at
> org.apache.hadoop.hive.ql.parse.HiveParser.statement(HiveParser.java:1108)
>         at
> org.apache.hadoop.hive.ql.parse.ParseDriver.parse(ParseDriver.java:204)
>         at
> org.apache.hadoop.hive.ql.parse.ParseDriver.parse(ParseDriver.java:166)
>         at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:444)
>         at org.apache.hadoop.hive.ql.Driver.compile(Driver.java:319)
>         at
> org.apache.hadoop.hive.ql.Driver.compileInternal(Driver.java:1199)
>         at
> org.apache.hadoop.hive.ql.Driver.compileAndRespond(Driver.java:1186)
>         at
> org.apache.hive.service.cli.operation.SQLOperation.prepare(SQLOperation.java:146)
>         at
> org.apache.hive.service.cli.operation.SQLOperation.runInternal(SQLOperation.java:218)
> ...
> FAILED: ParseException line 1:0 cannot recognize input near 'invalid'
> 'syntax' '<EOF>'
> => Is it correct?
>
> hostB$ Error: Error while compiling statement: FAILED: ParseException line
> 1:0 cannot recognize input near 'invalid' 'syntax' '<EOF>'
> (state=42000,code=40000)
> => correct.
> ----------------------------------
>
> I feel strange about this behavior that it throws exception, because the
> input text is invalid syntax but isn't an unexpected input.
>
> Is this correct design? If not, I will create the JIRA ticket and address
> this issue to suppress the exception output.
>
> Thanks!
> --
> Takuma Wakamori
> wakamori.tak...@gmail.com

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