Zhijie Shen commented on YARN-3009:

I didn't remember where we made the comment, but said the filter value is the 
JSON object instead of the string. Therefore, it could be a number, a string or 
even a nested Jason structure, couldn't it? In this case, 123 and "123" mean 
different things. Without quotes, the value is considered as number. It seems 
that jackson ObjectReader is parsing the numeric value as an ordinary atoi 
method, stopping at the first non-numeric letter. If the value cannot parse it 
into a number at all, it will be taken as the string. Need to double check the 

I'm not sure the aforementioned method is semantically correct if we assume the 
filter value is a Json object. In addition, if the value is a nexted Json 
structure but not well formatted, such as 
{     'a':1,    'b':       2}
After being converted to a Json object and then to a string, will it still be 
the aforementioned string, or in a pretty format as follows
     'b': 2
If it is the latter case, the string value is different from the original one, 
and the nested Json structure will be mistaken as a string

> TimelineWebServices always parses primary and secondary filters as numbers if 
> first char is a number
> ----------------------------------------------------------------------------------------------------
>                 Key: YARN-3009
>                 URL: https://issues.apache.org/jira/browse/YARN-3009
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: timelineserver
>    Affects Versions: 2.6.0
>            Reporter: Chris K Wensel
>            Assignee: Naganarasimha G R
>         Attachments: YARN-3009.20150108-1.patch
> If you pass a filter value that starts with a number (7CCA...), the filter 
> value will be parsed into the Number '7' causing the filter to fail the 
> search.
> Should be noted the actual value as stored via a PUT operation is properly 
> parsed and stored as a String.
> This manifests as a very hard to identify issue with DAGClient in Apache Tez 
> and naming dags/vertices with alphanumeric guid values.

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