[TAJO-474] Add query admin utility

• Type: New Feature
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.8.0
• Component/s: Tools
• Assignee: DaeMyung Kang
• Reporter: Hyunsik Choi
• Created: 03/Jan/14 06:06
• Updated: 08/Jan/14 09:39
• Resolved: 08/Jan/14 09:35

Description

We need query admin utility to list running queries, get a query detail, or kill a specified running query. The utility may have the following form:

query list

$ bin/tajo admin -list
query id                  start time                 query
q_xxx_xxx running  2014-01-02T13:45:00 select a,b,c ... ...
q_xxx_xxx running  2014-01-02T13:47:00 select count(distinct ...

query kill

$ bin/tajo admin -kill q_xxx_xxxx
q_xxx_xxxx has been killed.

query detail

$ bin/tajo admin -desc q_xxx_xxxx
query id: q_xxx_xxxx
submit user: hyunsik
start time: 2014-01-01T13:46:50
running time: 36 sec
query statement: 

SELECT a,b,c
FROM ...

query logical plan:
...

distributed execution plan:
...