[IMPALA-1926] Cancelling query in impala-shell suppresses further informational messages

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Cannot Reproduce
• Affects Version/s: Impala 2.2
• Component/s: Clients
• Labels: shell
• Environment: 2.2 pre-release
• Target Version: Product Backlog
• Assignee: Ishaan Joshi
• Reporter: John Russell
• Created: 30/Mar/15 19:00
• Updated: 07/Jun/18 22:55
• Resolved: 07/Jun/18 22:55

Description

I cancelled an INSERT statement when I realized it was going to take a long time and not match anything.

[localhost:21000] > insert into partitioned_text (x, y, s) partition (year=2014,month=1,day=1) select id, val, name from oreilly.sample_data
                  > where zerofill like '20140101%' limit 1e6;
^C Cancelling Query
Application Exception : Default TException.

Subsequent INSERT statements did not show any 'Inserted NNN rows' messages, so I assumed they were unsuccessful.

[localhost:21000] > insert into partitioned_text (x, y, s) partition (year=2014,month=1,day=1) select id, val, name from oreilly.sample_data
where id = 20140101 limit 1e6;
[localhost:21000] > insert into partitioned_text (x, y, s) partition (year=2014,month=1,day=1) select id, val, name from oreilly.normalized_parquet
where id between 1 and 1000000; 

However, they apparently did succeed and inserted the expected number of rows.

[localhost:21000] > select count(*) from partitioned_text;
+----------+
| count(*) |
+----------+
| 1000001  |
+----------+

My hypothesis is that the error handler in impala-shell turned off some messaging flag when I cancelled the query via Ctrl-C, and this flag remained off afterwards.