liyang commented on KYLIN-2105:

One minor thing, we try to avoid use spring configuration as much as possible. 
All kylin configuration should go to {{kylin.properties}} whenever possible.

> add QueryId
> -----------
>                 Key: KYLIN-2105
>                 URL: https://issues.apache.org/jira/browse/KYLIN-2105
>             Project: Kylin
>          Issue Type: Sub-task
>          Components: Query Engine, Storage - HBase
>    Affects Versions: v1.6.0
>            Reporter: Dayue Gao
>            Assignee: Dayue Gao
>              Labels: patch
>             Fix For: v1.6.0
> * for each query, generate an unique id.
> * the id could describe some context information about the query, like start 
> time, project name, etc.
> * for query thread, we could use query id as the name of the thread. As long 
> as user logs thread's name, he can grep query log by query id afterwards.
> * pass query id to coprocessor, so that query id gets logged both in query 
> server and region server.
> * BadQueryDetector should also log query id

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