Hyunsik Choi created TAJO-1136:
----------------------------------
Summary: Implement queryable virtual table for query history
Key: TAJO-1136
URL: https://issues.apache.org/jira/browse/TAJO-1136
Project: Tajo
Issue Type: New Feature
Components: tajo master
Reporter: Hyunsik Choi
Currently, Tajo does not provide queryable query history. We can see the
history form WEB UI or {{bin/tajo}} command.
I propose that we should implement a virtual table where each row a
running/finished/failed query and columns are query id, start time, finish
time, query status, in/out bytes and other counts and statistic information.
If we provide queryable feature for query history, we don't need to implement
additional code to discovery queries. Especially, it would be very useful for
following cases:
* users can get some statistic information for their usages
* Query optimizer can exploit statistic information
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
