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Posted to dev@drill.apache.org by "Hao Zhu (JIRA)" <ji...@apache.org> on 2014/08/23 01:10:11 UTC
[jira] [Created] (DRILL-1327) Any subsequent query may hung in
sqlline after you cancel one query in the same session
Hao Zhu created DRILL-1327:
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Summary: Any subsequent query may hung in sqlline after you cancel one query in the same session
Key: DRILL-1327
URL: https://issues.apache.org/jira/browse/DRILL-1327
Project: Apache Drill
Issue Type: Bug
Components: Query Planning & Optimization
Affects Versions: 0.4.0
Environment: MapR 3.1.1
Drill 0.4.0
Reporter: Hao Zhu
Priority: Critical
This is another issue related to DRILL-1326.
If we cancel a query in sqlline, subsequent query may hung.
I can reproduce it almost every time.
How to reproduce:
1. Logon sqlline, run below SQL:
{code}
select *
from cp.`employee.json` a, cp.`employee.json` b
where a.position_id=b.position_id ;
{code}
When it is printing the results for about 3 seconds, type "ctrl-c" to stop it.
Then any subsequent query will hung.
For example,
{code}
| 110 | Josie Underwood | Josie | Underwood | 15 | Store Permanent Checker | 7 | 15 | 1914-02-02 | 1996-01-01 00:00:00.0 | 8200.0 | 101 |
| 110 | Josie Underwood | Josie | Underwood | 15 | Store Permanent Checker | 7 | 15 | 1914-02-02 | 1996-01-01 00:00:00.0 | 8200.0 | 101 |
| 110 | Josie Underwood | Josie | Underwood | 15 | Store Permanent Checker | 7 | 15 | 1914-02-02 | 1996-01-01 00:00:00.0 | 8200.0 | 101 |
| 110 | Josie Underwood | Josie | Underwood | 15 | Store Permanent Checker | 7 | 15 | 1914-02-02 | 1996-01-01 00:00:00.0 | 8200.0 | 101 |
+-------------+------------+------------+------------+-------------+----------------+------------+---------------+------------+------------+------------+---------------+-----------------+--+
11,744 rows selected (2.879 seconds)
0: jdbc:drill:zk=node1.xxx.com:5181,node3.>
Command canceled.
0: jdbc:drill:zk=node1.xxx.com:5181,node3.>
Command canceled.
0: jdbc:drill:zk=node1.xxx.com:5181,node3.>
0: jdbc:drill:zk=node1.xxx.com:5181,node3.> SELECT TABLE_SCHEMA, TABLE_NAME, TABLE_TYPE
. . . . . . . . . . . . . . . . . . . . . . .> FROM INFORMATION_SCHEMA.`TABLES`
. . . . . . . . . . . . . . . . . . . . . . .> ORDER BY TABLE_NAME DESC;
{code}
In the end, we have "ctrl-z" and "kill -9 %1" to exit the sqlline.
After that, the SQL become "Running Queries" forever.
We need to fix this because it looks like the sqlline is not stable.
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